STEARETH-2 = STEARYL ALCOHOL 2 EO = Polyoxyethylene (2) Stearyl Ether

Steareth-2 Alcohol Ethoxylate

Product: Steareth-2 Alchohol Ethoxylate with 2 EO (C18/C16 Alcohol)

Polyoxyethylene monooctadecyl ether (9005-00-9)

Steareth-2 is Polyoxyethylene fatty ether derived from stearyl alcohols designed to emulsify and produce stable dispersions of cosmetic materials

Steareth-2 is a water-in-oil emulsifier.

Steareth-2 is also used in antiperspirants, depilatories, cold waves, bleaches and dyes.

Steareth-2 is a waxy solid material that helps oil and water to mix together (emulsifier).

Steareth-2 is derived from the fatty alcohol, stearyl alcohol by ethoxylating it and thus making the molecule a little water-soluble.

This version Steareth-2 has only a small amount of ethoxylation and thus the molecule is still largely oil soluble.

Steareth-2 is often mixed with more water-soluble emulsifiers (such as Steareth-20) to create stable emulsion systems.

Steareth-2 is Ethoxylated stearyl alcohol. Steareth-2 is Nonionic emulsifier for various O/ W skin care emulsions, especially suitable for O/ W antiperspirant roll-ons.

Steareth-2 is an emulsifier for the formulation of cosmetic O/W and W/O emulsions suitable for the preparation of antiperspirants.

Steareth-2 is also suitable for O/W skin care creams and lotions, W/O skin care creams and lotions, deodorant and antiperspirant sprays and roll-ons, hair conditioner and wet wipes.

Steareth-2 is a non-ionic emulsifier for various O/ W skin care emulsions, especially suitable for O/ W anti-perspirant roll-ons

The steareth group is a series of compounds prepared by reacting stearyl alcohol with ethylene oxide to form polyoxyethylene stearyl ethers. Steareths are waxy solids used primarily as emulsifiers in cosmetics at concentrations of up to 25%.

Steareth-2 is an Emulsifier for the formulation of cosmetic O/W and W/O emulsions

• Suitable for the preparation of antiperspirants

• Stable emulsions at a wide pH range

CAS Number: 9005-00-9

Industry Primarily Used : Cosmetics, Pharmaceuticals, Inks & Coatings

Steareth-2 is used in emulsions, PIT emulsions and hair treatment rinses. Steareth-2 acts as a nonionic emulsifier and thickener.

CAS Numbers:

9005-00-9 (Generic)

16057-43-5

EC/List Numbers: 500-017-8

Technical Names:

2-[2-(Octadecyloxy)Ethoxy]Ethanol

Ethanol, 2-[2-Octadecyloxy)Ethoxy]-

Octadecan-1-ol, Ethoxylated

PEG-2 Stearyl Ether

Polyethylene Glycol (2) Stearyl Ether

Polyoxyethylene (2) Stearyl Ether

Polyoxyethylene Monooctadecyl Ether

Polyoxyethylen(2)stearyl-Ether

Steareth-2 (INCI)

Product Categories:

Cleaning Products

Description: Solid emulsifier for cosmetic formulations.

Properties

• Steareth-2 is non-ionic emulsifiers based on vegetable raw materials.

• Steareth-2 can be formulated in combination with other emulsifiers creams and lotions

• The amount of Steareth-2 used, referred to the emulsion, is 1.0 - 6.0 %.

• Steareth-2 should be used in combination with consistencyproviding substances for the formation of viscosity-enhancing gel structures in the external water phase.

• Steareth-2 emulsifies oils and fats in highly acidic or alkaline media.

FATTY ALCOHOL POLYGLYCOL ETHER

Steareth-2 is a nonionic emulsfier and thickener for personal care products. Steareth-2 is an ethoxylated fatty acid, based on stearic acid.

This naturally derived, nonionic surfactant finds use in many Personal Care DEO applications.

Benefits

Plant-based

Viscosifier

Cosmetic Ingredient Functions

Emulsifier

Surfactant

Viscosity Modifier

Functions

Dispersing Agents

Emulsifiers

Gelling Agents

Surfactants / Detergents

Applications

Bath, Shower & Soaps

Antiperspirants & Deodorants

Eye Colour

Face / Neck Skin Care

Face Colour

Hair Relaxing / Permanent Waves

Lip Colour

Shaving / Hair Removal

Sun Protection

Product description

Stearyl alcohol ethoxylate with 2 EO

Application

Pre-treatment, laundry liquids, bleach boosters, hard surface cleaning, toilet & hygienic cleaning, dairy & food cleaning, vehicle washing

Steareth-2 is polyethylene glycol ethers of stearic acid and it is a Lipophilic emulsifier.

Steareth-2 is a waxy compound and when added to cosmetics and personal care products, the Steareth ingredients reduce the interactive forces between solids and liquids so that an emulsion is formed

STEARETH-2 is a synthetic polymer composed of PEG (polyethylene glycol) and stearyl alcohol.

Chemical Class: Polyoxyethylene Alkyl Ethers

Steareth-2 is a non-ionic, vegetable based, emulsifier for cosmetic O/W and partially also for W/O emulsions.

Steareth-2 is suitable for skin care creams, lotions and the preparation of antiperspirants.

Steareth-2 stabilizes emulsions over a wide pH range.

Steareth-2 emulsifies oils and fats in highly acidic or alkaline media and is easy to process.

STEARETH-2

CAS number: 9005-00-9 (Generic) / 16057-43-5

INCI name: STEARETH-2

N ° EINECS / ELINCS: 500-017-8 / -

Classification: Ethoxylated compound

Steareth-2 functions (INCI)

Emulsifying agent: Steareth-2 promotes the formation of intimate mixtures between immiscible liquids by modifying the interfacial tension (water and oil)

Surfactant: Steareth-2 reduces the surface tension of cosmetics and contributes to the uniform distribution of the product during its use

Personal Care Products

Pharmaceutical Intermediates

Detergents

Uses:

Laundry Liquids

Bleach Boosters

Hard Surface Cleaning

Toilet & Hygienic Cleaning

Dairy & Food Cleaning

Vehicle Washing

Synonyms

Arlacel 985 Brij 72 Brij S2 Hetoxol Sta-2 Lipocol S-2 Nikkol Bs-22-Octadecoxyethanol (Peg-2) Peg-2 Stearyl Ether Poly(Oxy-1,2-Ethanediyl), .Alpha.-Octadecyl-.Omega.-Hydroxy- (2 Mol Eo Average Molar Ratio) Polyethylene Glycol (2) Stearyl Ether Polyoxyethylene (2) Stearyl Alcohol Ether Polyoxyethylene (2) Stearyl Ether Tego Alkanol S 2 P

Function : Emulsifying; Surfactant;The Steareth Ingredients Are A Series Of Polyoxyethylene Stearyl Ethers.

In Cosmetics And Personal Care Products, The Steareths Function Mainly As Surfactant - Emulsifying Agents.

They May Also Be Used As Wetting Agents, Solubilizers And Nonionic Surfactants.

STEARETH-2

Description

Poly(oxy-1,2-ethanediyl), .alpha.-octadecyl-.omega.-hydroxy

CAS# code (Chemical Abstracts Service)

9005-00-9 (Generic) / 16057-43-5

EC# code (European Community)

500-017-8 / -

The functions of the cosmetic ingredient

SURFACTANT - CLEANSING : wetting body surfaces, emulsifying or solubilizing oils, and suspending soil (generally, such ingredients contribute to the foaming and lathering properties of cleansing products).

SURFACTANT - EMULSIFYING : helping suspensions or dispersions of liquids in a second liquid by reducing the surface tension of the substances to be emulsified.

Octadecan-1-ol, ethoxylated

EC Inventory

Octadecan-1-ol, ethoxylated

1 - 2.5 moles ethoxylated

Polyoxyl stearyl ether

1 - 2.5 moles ethoxylated

CAS names

Poly(oxy-1,2-ethanediyl), .alpha.-octadecyl-.omega.-hydroxy-

IUPAC names

1-(2-$l^{1}-oxidanylethoxy)octadecane

2-Octadecoxyethanol

2-octadecoxyethanol

alpha-octadecyl-omega-hydroxy-polyglycolether

Octadecan-1-ol, ethoxylated

Octadecan-1-ol, ethoxylated (1 - 2.5 mol EO)

Octadecan-1-ol, ethoxylated (1 - 2.5 moles ethoxylated)

Octadecan-1-ol, ethoxylated (10 mol EO)

Octadecan-1-ol, ethoxylated, < 2.5 EO

Octadecan-1-ol, ethoxylated, < 2.5 EO

Poly (oxy-1,2-ethanediyl) - α - octadecyl -ω- hydroxyl

Poly(oxy-1,2-ethanediyl) , .alpha.-octadecyl-.omega.-hydroxy-

Poly(oxy-1,2-ethanediyl), .alpha.-octadecyl-.omega.-hydroxy-

poly(oxy-1,2-ethanediyl), .alpha.-octadecyl-.omega.-hydroxy-

Poly(oxy-1,2-ethanediyl), a-octadecyl-w-hydroxy-

Poly(oxy-1,2-ethanediyl), a-octadecyl-w-hydroxy- (2-5EO)

Poly(oxy-1,2-ethanediyl), alpha-octadecyl-omega-hydroxy-

Steareth-2

Trade names

1-Octadecanol, monoether with polyethylene glycol

[1-14C]Octadecylalkohol + 7 EO; 7-EO

A 20

A 20 (Chinese surfactant)

Aduxol ST 05

Alcool en C18 éthoxylé

Alkasurf SA 2

Alkyl polyglycol ether C18 with EO

Alkyl Polyglykolether C18 mit EO

ARLYPON SA 10 FEST; 10-EO

Arlypon SA 10; 10-EO

Arlypon SA 20 D; 20-EO

ARLYPON SA 20 FEST; 20-EO

Arlypon SA 20; 20-EO

Arlypon SA 4 D; 4-EO

Arlypon SA 4; 4-EO

Arlypon SA 6; 6-EO

ARLYPON SA 7 FEST; 7-EO

ARLYPON SA 7; 7-EO

Avivan SO 6

Berol 043

Berol 08

Brij 700

Brij 72

Brij 721

BRIJ 721 FL; 21-EO

Brij 721 P; 21-EO

Brij 721 VP; 21-EO

BRIJ 721; 21-EO

BRIJ 72; 2-EO

Brij 76

BRIJ 76; 10-EO

Brij 78

BRIJ 78 P; 20-EO

Brij 78; 20-EO

Brij S2

C18-Fettalkohol + 12 EO; 12-EO

C18-Fettalkohol + 14 EO; 14-EO

C18-Fettalkohol + 20 EO; 20-EO

C18-Fettalkohol + 28 EO; 28-EO

C18-Fettalkohol + 52 EO; 52-EO

Cemulsol DB 25/18

Cetalox AT

Ekaline G 80

EM 1207

Empilan KM 50

EMTHOX 5888-A POE (20) STEARYL ALCOHOL; 20-EO

Emulgen 306P

Emulgen 310

Emulgen 320P

Emulgen 3299

ESK 1

ESK 1 (demulsifier)

Ethosperse CA 20

Ethoxylated octadecyl alcohol

Ethoxylated stearyl alcohol

Eumulgin S 21; 21-EO

Eumulgin S 2; 2-EO

Eumulgin SA 2; 2-EO

FAEO C18 + 10EO; 10-EO

FAEO C18 + 11EO; 11-EO

FAEO C18 + 12EO; 12-EO

FAEO C18 + 13EO; 13-EO

FAEO C18 + 14.6EO; 14,6-EO

FAEO C18 + 14EO; 14-EO

FAEO C18 + 15EO; 15-EO

FAEO C18 + 20EO; 20-EO

FAEO C18 + 21EO; 21-EO

FAEO C18 + 28EO; 28-EO

FAEO C18 + 2EO; 2-EO

FAEO C18 + 30EO; 30-EO

FAEO C18 + 4EO; 4-EO

FAEO C18 + 52EO; 52-EO

FAEO C18 + 5EO; 5-EO

FAEO C18 + 6EO; 6-EO

FAEO C18 + 7EO; 7-EO

FAEO C18 + nEO; n-EO

Fettalkoholpolyglykolether

G 3694POE

G 3710

G 3720

G 3720POE

Genapol S

Genapol S 020

Genapol S 100

Genapol S 150

Glycols, polyethylene, monooctadecyl ether

Heptaethylene glycol monooctadecyl ether

Hetoxol STA 30

IDH 45601; 4-EO

LAMECREME SA 7 FEST; 7-EO

Lamecreme SA 7; 7-EO

Leunapon-F 18

Levenol PW

Lipocol S 20

LOROL C 18 + 2EO; 2-EO

Macol SA

Macol SA 10

Macol SA 100

Macol SA 15

Macol SA 2

Macol SA 20

MACOL SA 20; 20-EO

Macol SA 40

Macol SA 5

Marlipal 1850

Mergital S 2

Mergital S 21; 21-EO

Newcol 1807

Nissan Dispanol 16A

Nissan Nonion S 207

Nissan Nonion S 215

Nissan Nonion S 220

Nissan Nonion S 230

Noigen 140E

Nonion S 207

Octadecanol + EO

Octadecylalkohol + 7 [14C]EO; 7-EO

Poly(oxy-1,2-ethandiyl), α-octadecyl-ω-hydroxy-

Poly(oxy-1,2-ethanediyl), α-octadecyl-ω-hydroxy-

POLYOXYAETHYLEN(10)STEARYLAETHER

POLYOXYAETHYLEN(2)STEARYLAETHER

POLYOXYAETHYLEN(20)STEARYLAETHER

Polyoxyethylen

Polyoxyethylen-(2)-Stearylalkohol

Polyoxyethylen-Stearylalkohol-ether

Polyoxyethylen-stearylether

Sansheng AFE 7620

Stearath 7

Stearath 7 (CTFA)

STEARETH

Steareth

Steareth-10

Steareth-10 (INCI)

Steareth-100

Steareth-100 (INCI)

Steareth-10; 10-EO

Steareth-11

Steareth-11 (INCI)

Steareth-11; 11-EO

Steareth-13

Steareth-13 (INCI)

Steareth-13; 13-EO

Steareth-14

Steareth-14 (INCI)

Steareth-15

Steareth-15 (INCI)

Steareth-15; 15-EO

Steareth-16

Steareth-16 (INCI)

Steareth-2

Steareth-2 (CTFA)

Steareth-2 (INCI)

Steareth-20

Steareth-20 (INCI)

Steareth-20; 20-EO

Steareth-21

Steareth-21 (INCI)

Steareth-25

Steareth-25 (INCI)

Steareth-27

Steareth-27 (INCI)

Steareth-2; 2-EO

Steareth-3

Steareth-3 (INCI)

Steareth-30

Steareth-30 (INCI)

Steareth-4

Steareth-4 (INCI)

Steareth-40

Steareth-40 (INCI)

Steareth-4; 4-EO

Steareth-5

Steareth-5 (INCI)

Steareth-50

Steareth-50 (INCI)

Steareth-6

Steareth-6 (INCI)

Steareth-6; 6-EO

Steareth-7

Steareth-7 (INCI)

Steareth-7; 7-EO

STEARYL ALCOHOL + 2EO; 2-EO

Stearyl alcohol, ethoxylated

Stearylalkohol + 2 EO; 2-EO

Stearylalkohol + 7 EO; 7-EO

Stearylalkohol + EO

Stearylalkohol 21 EO; 21-EO

STEARYLALKOHOL 4 EO GEREINIGT; 4-EO

STEARYLALKOHOL 4 EO; 4-EO

Stearylalkohol 6 EO/Stearylalkohol; 6-EO

Stearylalkohol 7 EO/Stearylalkohol; 7-EO

Stearylalkohol EO 20

Stearylalkohol-(10)polyglycolether

Stearylalkohol-(20)polyglycolether

Stearylalkohol-(4)polyglycolether

Stearylalkohol-(5)polyglycolether

Stearylalkohol-(6)polyglycolether

Stearylalkohol-(7)polyglycolether

Stearylalkohol-(XX)polyglycolether

Stearylether

Sympatens-AS/020

Tego Antifoam 204

Um A 549; 14,6-EO

Volpo S 2; 2-EO

Volpo S2

Volpo S2A

Xiameter AFE 7610

α-Octadécyl-ω-hydroxypoly(oxyéthylène)

Emulsions and the HLB System

All creams and lotions have one thing in common. They are both emulsions.

An emulsion is a system of two (or more) immiscible materials (usually liquids) in which one material (the dispersed/internal phase) is suspended or dispersed throughout another material (the continuous/external phase) in separate droplets.

Most emulsions fall into two different classes, oil in water emulsions and water in oil emulsions.

In oil in water emulsions, we have hundreds of tiny oil droplets surrounded by water.

In water in oil emulsions, we have the opposite situation. We have hundreds of water droplets surrounded by oil.

One of the simplest emulsions is a simple vinegar and oil salad dressing. One of the problems with this simple emulsion is that the oil and vinegar don’t mix.

To emulsify the vinegar into the oil, we can use an egg yolk. Egg yolks contain a natural emulsifier call Lecithin.

Most creams and lotions on the market today are oil in water emulsions.

In 1949, William C. (Bill) Griffin developed the Hydrophile-Lipophile Balance System or HLB System when he was a chemist at the Atlas Powder Company, which eventually became ICI Surfactants and is part of Uniqema today.

All emulsifier have two parts; like a bar magnet. A bar magnet has a north pole and a south pole. Nonionic emulsifiers also have two poles or parts.

An emulsifier molecule has one part that loves water and one part loves oil.

The water loving part is called hydrophilic; "hydro-` meaning water and "-philic" meaning to love or like.

The other part of the emulsifier molecule is lipophilic; if "lipo-" means fat or oil, then lipophilic means oil loving.

Therefore, an emulsifier has a hydrophilic part and a lipophilic part.

The balance of these two portions of the emulsifier gives us the Hydrophile-Lipophile Balance (HLB). The HLB of emulsifiers can be calculated or determined through trial and error.

According to the HLB System, all fats and oils have a Required HLB.

For example, if we wanted to emulsify Soybean Oil, which has a required HLB of 7, we would need to use an emulsifier or blend of emulsifiers that had a HLB of 7 ± 1.

Before we can select our emulsifiers that we will need, we must know the required HLB of our oil phase.

Let's start calculating the required HLB of an Oil Phase.

Below is a list of oils and waxes and their respective required HLBs.

INCI Nomenclature [RHLB ± 1]

Aleurites Moluccana Seed Oil [7] Grape (Vitis Vinifera) Seed Oil [7]

Almond Oil NF [6] Hybrid Safflower (Carthamus Tinctorius) Oil [9]

Anhydrous Lanolin USP [10] Isopropyl Myristate [11.5]

Apricot Kernel Oil [7] Isopropyl Palmitate [11.5]

Avocado (Persea Gratissima) Oil [7] Jojoba (Buxus Chinensis) Oil [6.5]

Babassu Oil [8] Lanolin [10]

Beeswax [12] Macadamia (Ternifolia) Nut Oil [7]

Borage (Borago Officinalis) Seed Oil [7] Mangifera Indica (Mango) Seed Butter [8]

Brazil Nut Oil [8] Mineral Oil [10.5]

C12-15 Alkyl Benzoate [13] Myristyl Myristate [8.5]

Cannabis Sativa Seed Oil [7] Olive (Olea Europaea) Oil [7]

Canola Oil [7] Oryza Sativa (Rice Bran) Oil [7]

Caprylic/Capric Triglyceride [5] Peanut Oil NF [6]

Carrot (Daucus Carota Sativa) Seed Oil [6] Petrolatum [7]

Castor (Ricinus Communis) Oil [14] PPG-15 Stearyl Ether [7]

Ceresin [8] Retinyl Palmitate [6]

Cetearyl Alcohol [15.5] Safflower (Carthamus Tinctorius) Oil [8]

Cetyl Alcohol [15.5] Sesame (Sesamum Indicum) Oil [7]

Cetyl Esters [10] Shea Butter (Butyrospermum Parkii) [8]

Cetyl Palmitate [10] Soybean (Glycine Soja) Oil [7]

Coconut Oil [8] Stearic Acid [15]

Daucus Carota Sativa (Carrot) Root Extract [6] Stearyl Alcohol [15.5]

Diisopropyl Adipate [9] Sunflower (Helianthus Annus) Oil [7]

Dimethicone [5] Sweet Almond (Prunus Amygdalus Dulcis) Oil

[7]

Dog Rose (Rosa Canina) Hips Oil [7] Theobroma Cacao (Cocoa) Seed Butter [6]

Emu Oil [8] Tocopherol [6]

Evening Primrose Oil [7]

For the purposes of our calculations, we will assume that 100% of our Oil Phase of our hypothetical emulsion is equal 20%. It could be 18%, 17.85% or 28%.

So, if 100% of our Oil Phase consisted of 20% Soybean Oil, the calculations would be easy.

Since the required HLB of Soybean Oil is 7 and 100% of the Oil Phase is Soybean Oil, intuitively we should see that the required HLB of the oil phase is 7.

Let's suppose that your oil phase contains:

Soybean (Glycine Soja) Oil = 15%

Cetyl Alcohol = 5%

The total amount of oils in our Oil Phase = 20%

To calculate the required HLB of our Oil Phase, we must calculate the composition of our Oil Phase in terms of percentage.

But we already know that the total amount of oils in our Oil Phase = 20%

Therefore we can say that 20% of our formula = 100% of the Oil Phase,

If 20% = 100% and 15% = X %

then X = (100 X 15) / 20

X = 1500 / 20

X = 75%

Therefore Soybean (Glycine Soja) Oil is 75% of the oil phase.

If 20% = 100% and 5% = X % then X = (100 X 5) / 20

X = 500 / 20

X = 25%

and Cetyl Alcohol is 25% of the oil phase.

So now, we can say Soybean (Glycine Soja) Oil = 15% of the formula and 75% of the oil phase.

Cetyl Alcohol = 5% of the formula and 25% of the oil phase.

But we also know that the required HLB of Soybean (Glycine Soja) Oil is 7 the required HLB of Cetyl Alcohol is 15.5

To calculate the required HLB of the Oil Phase, we multiply the percentage of each oil, expressed as a number, in the Oil Phase by its respective required HLB and sum the results.

(75%/100) X 7 = 0.75 X 7 = 5.25

(25%/100) X 15.5 = 0.25 X 15.5 = 3.88

The required HLB of our oil phase is the sum of these numbers or 9.13

Let’s look at those calculations again. This time let's suppose that your oil phase contains:

Soybean (Glycine Soja) Oil = 18%

Cetyl Alcohol = 2%

The total amount of oils in our Oil Phase = 20%

To calculate the required HLB of our Oil Phase, we must calculate the composition of our Oil Phase in terms of percentage.

But we already know that the total amount of oils in our Oil Phase = 20%

Therefore we can say that 20% of our formula = 100% of the Oil Phase,

If 20% = 100% and 18% = X % then X = (100 X 18) / 20

X = 1800 / 20

X = 90%

Therefore Soybean (Glycine Soja) Oil is 90% of the oil phase.

If 20% = 100%

and 2% = X %

then X = (100 X 2) / 20

X = 200 / 20

X = 10%

and Cetyl Alcohol is 10% of the oil phase.

So now, we can say Soybean (Glycine Soja) Oil = 18% of the formula and 0% of the oil phase.

Cetyl Alcohol = 2% of the formula and 10% of the oil phase.

But we also know that

the required HLB of Soybean (Glycine Soja) Oil is 7

the required HLB of Cetyl Alcohol is 15.5

To calculate the required HLB of the Oil Phase, we multiply the percentage of each oil in the Oil Phase by its respective required HLB and sum the results.

(90%/100) X 7 = 0.9 X 7 = 6.3

(10%/100) X 15.5 = 0.1 X 15.5 = 1.55

The required HLB of our oil phase is the sum of these numbers or 7.85

Let's make the Oil Phase more complex. Let's suppose that your oil phase contains:

Soybean (Glycine Soja) Oil 11%

Caprylic/Capric Triglyceride 5%

Grape (Vitis Vinifera) Seed Oil 1%

Jojoba (Buxus Chinensis) Oil 1%

Tocopherol 0.5%

Beeswax 0.5%

Cetyl Alcohol 1%

The total amount of oils in our Oil Phase = 20%

To calculate the required HLB of our Oil Phase, we must calculate the composition of our Oil Phase in terms of percentage.

But we already know that the total amount of oils in our Oil Phase = 20%

Therefore we can say that 20% of our formula = 100% of the Oil Phase,

If 20% = 100% and 11% = X %

then X = (100 X 11) / 20

X = 1100 / 20

X = 55%

Therefore Soybean (Glycine Soja) Oil is 55% of the oil phase.

If 20% = 100%

and 5% = X %

then X = (100 X 5) / 20

X = 500 / 20

X = 25%

and Caprylic/Capric Triglyceride is 25% of the oil phase.

If 20% = 100% and 1% = X %

then X = (100 X 1) / 20

X = 100 / 20

X = 5%

and Grape (Vitis Vinifera) Seed Oil is 5% of the oil phase.

If 20% = 100%

and 1% = X %

then X = (100 X 1) / 20

X = 100 / 20

X = 5%

and Jojoba (Buxus Chinensis) Oil is 5% of the oil phase.

If 20% = 100%

and 0.5% = X %

then X = (100 X 0.5) / 20

X = 50 / 20

X = 2.5%

and Tocopherol is 2.5% of the oil phase.

If 20% = 100%

and 0.5% = X %

then X = (100 X 0.5) / 20

X = 50 / 20

X = 2.5%

and Beeswax is 2.5% of the oil phase.

If 20% = 100%

and 1% = X %

then X = (100 X 1) / 20

X = 100 / 20

X = 5%

and Cetyl Alcohol is 5% of the oil phase.

So now, we can say

Soybean (Glycine Soja) Oil = 11% of the formula and 55% of the oil phase.

Caprylic/Capric Triglyceride = 5% of the formula and 25% of the oil phase.

Grape (Vitis Vinifera) Seed Oil = 1% of the formula and 5% of the oil phase.

Jojoba (Buxus Chinensis) Oil = 1% of the formula and 5% of the oil phase.

Tocopherol = 0.5% of the formula and 2.5% of the oil phase.

Beeswax = 0.5% of the formula and 2.5% of the oil phase.

Cetyl Alcohol = 1% of the formula and 5% of the oil phase.

But we also know that

the required HLB of Soybean (Glycine Soja) Oil is 7

the required HLB of Caprylic/Capric Triglyceride is 5

the required HLB of Grape (Vitis Vinifera) Seed Oil is 7

the required HLB of Jojoba (Buxus Chinensis) Oil is 6.5

the required HLB of Tocopherol is 6

the required HLB of Beeswax is 12

the required HLB of Cetyl Alcohol is 15.5

To calculate the required HLB of the Oil Phase, we multiply the percentage of each oil, expressed as a number, in the Oil Phase by its respective required HLB and sum the results.

(55%/100) X 7 = 0.55 X 7 = 3.85

(25%/100) X 5 = 0.25 X 5 = 1.25

(5%/100) X 7 = 0.05 X 7 = 0.35

(5%/100) X 6.5 = 0.05 X 6.5 = 0.33

(2.5%/100) X 6 = 0.025 X 6 = 0.15

(2.5%/100) X 12 = 0.025 X 12 = 0.3

(5%/100) X 15.5 = 0.05 X 15.5 = 0.78

The required HLB of our oil phase is the sum of these numbers or 7

All we have to do now is find a pair of emulsifiers that will match this required HLB.

There are several nonionic emulsifiers that we could use. Here are two lists of emulsifiers and their respective HLBs.

Emulsifiers sorted by INCI Name

Calcium Stearoyl Lactylate [HLB = 5.1 ± 1] Oleth-20 [HLB = 15.3 ± 1]

Ceteareth-20 [HLB = 15.2 ± 1] PEG-100 Stearate [HLB = 18.8 ± 1]

Cetearyl Glucoside [HLB = 11 ± 1] PEG-20 Almond Glycerides [HLB = 10 ± 1]

Ceteth-10 [HLB = 12.9 ± 1] PEG-20 Methyl Glucose Sesquistearate

[HLB = 15 ± 1]

Ceteth-2 [HLB = 5.3 ± 1] PEG-25 Hydrogenated Castor Oil [HLB = 10.8 ± 1]

Ceteth-20 [HLB = 15.7 ± 1] PEG-30 Dipolyhydroxystearate [HLB = 5.5 ± 1]

Cocamide MEA [HLB = 13.5 ± 1] PEG-4 Dilaurate [HLB = 6 ± 1]

Glyceryl Laurate [HLB = 5.2 ± 1] PEG-40 Sorbitan Peroleate [HLB = 9 ± 1]

Glyceryl Stearate [HLB = 3.8 ± 1] PEG-60 Almond Glycerides [HLB = 15 ± 1]

Glyceryl Stearate (and) PEG-100 Stearate

[HLB = 11 ± 1]

PEG-8 Laurate [HLB = 13 ± 1]

Glyceryl Stearate SE [HLB = 5.8 ± 1] PEG-80 Sorbitan Laurate [HLB = 19.1 ± 1]

Glycol Distearate [HLB = 1 ± 1] Polysorbate 20 [HLB = 16.7 ± 1]

Glycol Stearate [HLB = 2.9 ± 1] Polysorbate 60 [HLB = 14.9 ± 1]

Isoceteth-20 [HLB = 15.7 ± 1] Polysorbate 80 [HLB = 15 ± 1]

Isosteareth-20 [HLB = 15 ± 1] Polysorbate 85 [HLB = 11 ± 1]

Lauramide DEA [HLB = 15 ± 1] Sodium Stearoyl Lactylate [HLB = 8.3 ± 1]

Laureth-23 [HLB = 16.9 ± 1] Sorbitan Isostearate [HLB = 4.7 ± 1]

Laureth-4 [HLB = 9.7 ± 1] Sorbitan Laurate [HLB = 8.6 ± 1]

Lecithin [HLB = 4 ± 1] Sorbitan Oleate [HLB = 4.3 ± 1]

Lecithin [HLB = 9.7 ± 1] Sorbitan Sesquioleate [HLB = 3.7 ± 1]

Linoleamide DEA [HLB = 10 ± 1] Sorbitan Stearate [HLB = 4.7 ± 1]

Methyl Glucose Sesquistearate [HLB = 6.6 ± 1] Sorbitan Stearate (and) Sucrose Cocoate

[HLB = 6 ± 1]

Oleth-10 [HLB = 12.4 ± 1] Sorbitan Trioleate [HLB = 1.8 ± 1]

Oleth-10 / Polyoxyl 10 Oleyl Ether NF [HLB = 12.4 ± 1] Stearamide MEA [HLB = 11 ± 1]

Oleth-2 [HLB = 4.9 ± 1] Steareth-2 [HLB = 4.9 ± 1]

Oleth-20 [HLB = 12.4 ± 1] Steareth-21 [HLB = 15.5 ± 1]

Emulsifiers sorted by HLB Value

Glycol Distearate [HLB = 1 ± 1] Cetearyl Glucoside [HLB = 11 ± 1]

Sorbitan Trioleate [HLB = 1.8 ± 1] Polysorbate 85 [HLB = 11 ± 1]

Glycol Stearate [HLB = 2.9 ± 1] Glyceryl Stearate (and) PEG-100 Stearate

[HLB = 11 ± 1]

Sorbitan Sesquioleate [HLB = 3.7 ± 1] Stearamide MEA [HLB = 11 ± 1]

Glyceryl Stearate [HLB = 3.8 ± 1] Oleth-10 / Polyoxyl 10 Oleyl Ether NF

[HLB = 12.4 ± 1]

Lecithin [HLB = 4 ± 1] Oleth-10 [HLB = 12.4 ± 1]

Sorbitan Oleate [HLB = 4.3 ± 1] Oleth-20 [HLB = 12.4 ± 1]

Sorbitan Stearate [HLB = 4.7 ± 1] Ceteth-10 [HLB = 12.9 ± 1]

Sorbitan Isostearate [HLB = 4.7 ± 1] PEG-8 Laurate [HLB = 13 ± 1]

Oleth-2 [HLB = 4.9 ± 1] Cocamide MEA [HLB = 13.5 ± 1]

Steareth-2 [HLB = 4.9 ± 1] Polysorbate 60 [HLB = 14.9 ± 1]

Calcium Stearoyl Lactylate [HLB = 5.1 ± 1] PEG-60 Almond Glycerides [HLB = 15 ± 1]

Glyceryl Laurate [HLB = 5.2 ± 1] Isosteareth-20 [HLB = 15 ± 1]

Ceteth-2 [HLB = 5.3 ± 1] Lauramide DEA [HLB = 15 ± 1]

PEG-30 Dipolyhydroxystearate

[HLB = 5.5 ± 1]

Polysorbate 80 [HLB = 15 ± 1]

Glyceryl Stearate SE [HLB = 5.8 ± 1] PEG-20 Methyl Glucose Sesquistearate

[HLB = 15 ± 1]

PEG-4 Dilaurate [HLB = 6 ± 1] Ceteareth-20 [HLB = 15.2 ± 1]

Sorbitan Stearate (and) Sucrose Cocoate

[HLB = 6 ± 1]

Oleth-20 [HLB = 15.3 ± 1]

Methyl Glucose Sesquistearate

[HLB = 6.6 ± 1]

Steareth-21 [HLB = 15.5 ± 1]

Sodium Stearoyl Lactylate [HLB = 8.3 ± 1] Ceteth-20 [HLB = 15.7 ± 1]

Sorbitan Laurate [HLB = 8.6 ± 1] Isoceteth-20 [HLB = 15.7 ± 1]

PEG-40 Sorbitan Peroleate [HLB = 9 ± 1] Polysorbate 20 [HLB = 16.7 ± 1]

Lecithin [HLB = 9.7 ± 1] Laureth-23 [HLB = 16.9 ± 1]

Laureth-4 [HLB = 9.7 ± 1] PEG-100 Stearate [HLB = 18.8 ± 1]

PEG-20 Almond Glycerides [HLB = 10 ± 1] PEG-80 Sorbitan Laurate [HLB = 19.1 ± 1]

Linoleamide DEA [HLB = 10 ± 1]

PEG-25 Hydrogenated Castor Oil[HLB = 10.8 ± 1]

However, the number of emulsifiers available to most homecrafters is quite limited. As far

as I know, the short list includes:

Glyceryl Stearate [HLB = 3.8 ± 1]

Polysorbate 80 [HLB = 15 ± 1]

Ceteareth-20 [HLB = 15.2 ± 1]

Polysorbate 20 [HLB = 16.7 ± 1]

Suppose we want to make a lotion that has an oil phase that has a required HLB of 7

This means that we’ll need an emulsifier or emulsifier blend that will have a HLB of 7.

Experiments have shown that you’ll get better stability with blends of high HLB and low

HLB emulsifiers versus a single emulsifier.

By using blends of

Glyceryl Stearate [HLB = 3.8 ± 1] and Polysorbate 80 [HLB = 15 ± 1]

Glyceryl Stearate [HLB = 3.8 ± 1] and Ceteareth-20 [HLB = 15.2 ± 1]

Glyceryl Stearate [HLB = 3.8 ± 1] and Polysorbate 20 [HLB = 16.7 ± 1]

We can create just about any HLB.

To calculate the HLB of two emulsifiers we multiply the percentage of the emulsifier by the HLB.

We could write an equation that looks like this:

HLB blend = (%HLB1/100) X HLB1 + (%HLB2/100) X HLB2

For this example, we’ll use Glyceryl Stearate [HLB = 3.8 ± 1] and Ceteareth-20 [HLB =15.2 ± 1].

Intuitively, we can sense that if we had

Glyceryl Stearate = 0%

Ceteareth-20 = 100%

the HLB would be 15.2

(0%/100) X 3.8 + (100%/100) X 15.2 = (0 X 3.8) + (1 X 15.2) = 0 + 15.2 = 15.2

and of course the opposite situation would be true also

Glyceryl Stearate =100%

Ceteareth-20 = 0%

(100%/100) X 3.8 + (0%/100) X 15.2 = (1 X 3.8) + (0 X 15.2) = 3.8 + 0 = 3.8

now what would happen if you had

Glyceryl Stearate = 50%

Ceteareth-20 = 50%

we would have

(50%/100) X 3.8 + (50%/100) X 15.2 = (0.5 X 3.8) + (0.5 X 15.2) = 1.9 + 7.6 = 9.5

Doing the calculations for 5% increments;

(0%/100) X 3.8 + (100%/100) X 15.2 = (0 X 3.8) + (1 X 15.2) = 0 + 15.2 = 15.2

(5%/100) X 3.8 + (95%/100) X 15.2 = (0.05 X 3.8) + (0.95 X 15.2) = 0.19 + 14.44 = 14.6

(10%/100) X 3.8 + (90%/100) X 15.2 = (0.1 X 3.8) + (0.9 X 15.2) = 0.38 + 13.68 = 14.1

(15%/100) X 3.8 + (85%/100) X 15.2 = (0.15 X 3.8) + (0.85 X 15.2) = 0.57 + 12.92 = 13.5

(20%/100) X 3.8 + (80%/100) X 15.2 = (0.2 X 3.8) + (0.8 X 15.2) = 0.76 + 12.16 = 12.9

(25%/100) X 3.8 + (75%/100) X 15.2 = (0.25 X 3.8) + (0.75 X 15.2) = 0.95 + 11.4 = 12.4

(30%/100) X 3.8 + (70%/100) X 15.2 = (0.3 X 3.8) + (0.7 X 15.2) = 1.14 + 10.64 = 11.8

(35%/100) X 3.8 + (65%/100) X 15.2 = (0.35 X 3.8) + (0.65 X 15.2) = 1.33 + 9.88 = 11.2

(40%/100) X 3.8 + (60%/100) X 15.2 = (0.4 X 3.8) + (0.6 X 15.2) = 1.52 + 9.12 = 10.6

(45%/100) X 3.8 + (55%/100) X 15.2 = (0.45 X 3.8) + (0.55 X 15.2) = 1.71 + 8.36 = 10.1

(50%/100) X 3.8 + (50%/100) X 15.2 = (0.5 X 3.8) + (0.5 X 15.2) = 1.9 + 7.6 = 9.5

(55%/100) X 3.8 + (45%/100) X 15.2 = (0.55 X 3.8) + (0.45 X 15.2) = 2.09 + 6.84 = 8.9

(60%/100) X 3.8 + (40%/100) X 15.2 = (0.6 X 3.8) + (0.4 X 15.2) = 2.28 + 6.08 = 8.4

(65%/100) X 3.8 + (35%/100) X 15.2 = (0.65 X 3.8) + (0.35 X 15.2) = 2.47 + 5.32 = 7.8

(70%/100) X 3.8 + (30%/100) X 15.2 = (0.7 X 3.8) + (0.3 X 15.2) = 2.66 + 4.56 = 7.2

(75%/100) X 3.8 + (25%/100) X 15.2 = (0.75 X 3.8) + (0.25 X 15.2) = 2.85 + 3.8 = 6.7

(80%/100) X 3.8 + (20%/100) X 15.2 = (0.8 X 3.8) + (0.2 X 15.2) = 3.04 + 3.04 = 6.1

(85%/100) X 3.8 + (15%/100) X 15.2 = (0.85 X 3.8) + (0.15 X 15.2) = 3.23 + 2.28 = 5.5

(90%/100) X 3.8 + (10%/100) X 15.2 = (0.9 X 3.8) + (0.1 X 15.2) = 3.42 + 1.52 = 4.9

(95%/100) X 3.8 + (5%/100) X 15.2 = (0.95 X 3.8) + (0.05 X 15.2) = 3.61 + 0.76 = 4.4

(100%/100) X 3.8 + (0%/100) X 15.2 = (1 X 3.8) + (0 X 15.2) = 3.8 + 0 = 3.8

Therefore, the HLB System says that a blend of

Glyceryl Stearate = 70%

Ceteareth-20 = 30%

would be needed to emulsify an oil phase that has a required HLB of 7.

Using our knowledge, let’s build a formula on paper. Most commercial creams and lotions

have three building bocks:

• Water Phase

• Oil Phase

• Miscellaneous Phase

A typical Water Phase might contain

Water QS

Humectant 2-7%

Preservative 0.05-1.0%

Thickener 0.1-2%

“Whiffle dust” QS

a typical Oil Phase might contain:

Emollients 5-10%

“Actives” Drug level

Antioxidant 0.05-0.2%

Emulsifier (primary) 1-2%

Emulsifier (secondary) 1-2%

Wax 0.5-2%

Silicones 0.5-5%

And finally, a typical Miscellaneous Phase might contain:

Preservative qs

Fragrance 0.1-1%

Color qs

For the purposes of this exercise, let’s use this Oil Phase.

Shea Butter (Butyrospermum Parkii) = 1.5%

Avocado (Persea Gratissima) Oil = 2.5%

Sweet Almond (Prunus Amygdalus Dulcis) Oil = 5%

Hemp Seed Oil = 2.5%

Stearic Acid = 3%

Cetyl Esters = 4%

Dimethicone = 4%

Therefore, the total amount of oils in our Oil Phase = 22.5%

To calculate the required HLB of our Oil Phase, we must calculate the composition of our

Oil Phase in terms of percentage.

But we already know that the total amount of oils in our Oil Phase = 22.5%

Therefore we can say that 22.5% of our formula = 100% of the Oil Phase,

If 22.5% = 100%

and 1.5% = X %

then X = (100 X 1.5) / 22.5

X = 150 / 22.5

X = 6.67%

Therefore Shea Butter (Butyrospermum Parkii) is 6.67% of the oil phase.

If 22.5% = 100%

and 2.5% = X %

then X = (100 X 2.5) / 22.5

X = 250 / 22.5

X = 11.11%

and Avocado (Persea Gratissima) Oil is 11.11% of the oil phase.

If 22.5% = 100%

and 5% = X %

then X = (100 X 5) / 22.5

X = 500 / 22.5

X = 22.22%

and Sweet Almond (Prunus Amygdalus Dulcis) Oil is 22.22% of the oil phase.

If 22.5% = 100%

and 2.5% = X %

then X = (100 X 2.5) / 22.5

X = 250 / 22.5

X = 11.11%

and Hemp Seed Oil is 11.11% of the oil phase.

If 22.5% = 100%

and 3% = X %

then X = (100 X 3) / 22.5

X = 300 / 22.5

X = 13.33%

and Stearic Acid is 13.33% of the oil phase.

If 22.5% = 100%

and 4% = X %

then X = (100 X 4) / 22.5

X = 400 / 22.5

X = 17.78%

and Cetyl Esters is 17.78% of the oil phase.

If 22.5% = 100%

and 4% = X %

then X = (100 X 4) / 22.5

X = 400 / 22.5

X = 17.78%

and Dimethicone is 17.78% of the oil phase.

So now, we can say

Shea Butter = 1.5% of the formula and 6.67% of the oil phase.

Avocado Oil = 2.5% of the formula and 11.11% of the oil phase.

Sweet Almond Oil = 5% of the formula and 22.22% of the oil phase.

Hemp Seed Oil = 2.5% of the formula and 11.11% of the oil phase.

Stearic Acid = 3% of the formula and 13.33% of the oil phase.

Cetyl Esters = 4% of the formula and 17.78% of the oil phase.

Dimethicone = 4% of the formula and 17.78% of the oil phase.

But we also know that

the required HLB of Shea Butter (Butyrospermum Parkii) is 8

the required HLB of Avocado (Persea Gratissima) Oil is 7

the required HLB of Sweet Almond (Prunus Amygdalus Dulcis) Oil is 7

the required HLB of Hemp Seed Oil is 7

the required HLB of Stearic Acid is 15

the required HLB of Cetyl Esters is 10

the required HLB of Dimethicone is 5

To calculate the required HLB of the Oil Phase, we multiply the percentage of each oil

(expressed as a number) in the Oil Phase by its respective required HLB and sum the

results.

(6.67%/100) X 8 = 0.0667 X 8 = 0.53

(11.11%/100) X 7 = 0.1111 X 7 = 0.78

(22.22%/100) X 7 = 0.2222 X 7 = 1.56

(11.11%/100) X 7 = 0.1111 X 7 = 0.78

(13.33%/100) X 15 = 0.1333 X 15 = 2

(17.78%/100) X 10 = 0.1778 X 10 = 1.78

(17.78%/100) X 5 = 0.1778 X 5 = 0.89

The required HLB of our oil phase is the sum of these numbers or 8.31

If we use Glyceryl Stearate [HLB = 3.8 ± 1] and Ceteareth-20 [HLB = 15.2 ± 1] as our

emulsifiers, but we know that:

(45%/100) X 3.8 + (55%/100) X 15.2 = (0.45 X 3.8) + (0.55 X 15.2) = 1.71 + 8.36 = 10.1

(50%/100) X 3.8 + (50%/100) X 15.2 = (0.5 X 3.8) + (0.5 X 15.2) = 1.9 + 7.6 = 9.5

(55%/100) X 3.8 + (45%/100) X 15.2 = (0.55 X 3.8) + (0.45 X 15.2) = 2.09 + 6.84 = 8.9

(60%/100) X 3.8 + (40%/100) X 15.2 = (0.6 X 3.8) + (0.4 X 15.2) = 2.28 + 6.08 = 8.4

(65%/100) X 3.8 + (35%/100) X 15.2 = (0.65 X 3.8) + (0.35 X 15.2) = 2.47 + 5.32 = 7.8

(70%/100) X 3.8 + (30%/100) X 15.2 = (0.7 X 3.8) + (0.3 X 15.2) = 2.66 + 4.56 = 7.2

So we must use

Glyceryl Stearate = 60%

Ceteareth-20 = 40%

Which will yield a HLB or 8.4 and the required HLB is 8.3.

So our Oil Phase is beginning to take shape:

Shea Butter 1.5%

Avocado Oil 2.5%

Sweet Almond Oil 5.0%

Hemp Seed Oil 2.5%

Stearic Acid 3.0%

Cetyl Esters 4.0%

Dimethicone 4.0%

Glyceryl Stearate ??

Ceteareth-20 ??

Before we can calculate the formula percentages for the emulsifiers, Glyceryl Stearate

and Ceteareth-20, we must decide on how much emulsifier do we want to use in our

formula. I usually start with 2% total emulsifier.

So

If 100% = 2%

Then 60% Glyceryl Stearate = X

X = (60 X 2)/100

X = 120/100

X = 1.2

Therefore, we need 1.2% Glyceryl Stearate

If 100% = 2%

Then 40% Ceteareth-20 = X

X = (40 X 2)/100

X = 80/100

X = 0.8

Therefore, we will need 0.8% Ceteareth-20.

Our Oil Phase is complete and looks like this:

Oil Phase

Shea Butter 1.5%

Avocado Oil 2.5%

Sweet Almond Oil 5.0%

Hemp Seed Oil 2.5%

Stearic Acid 3.0%

Cetyl Esters 4.0%

Dimethicone 4.0%

Glyceryl Stearate 1.2%

Ceteareth-20 0.8%

The Water Phase should be easy:

Water Phase

Water QS

Glycerin 2.0%

Calendula Extract 2.0%

Aloe Vera Gel 2.0%

Tetrasodium EDTA 0.1%

And finally, the Miscellaneous Phase:

Miscellaneous Phase

Germall Plus 0.15%

Fragrance 0.25

Now we can re-write the phases to look like a real formula:

Water Phase

Water 70.35%

Glycerin 2.00%

Calendula Extract 2.00 %

Aloe Vera Gel 2.00%

Tetrasodium EDTA 0.10%

Oil Phase

Shea Butter 0.15%

Avocado Oil 2.50%

Sweet Almond Oil 5.00%

Hemp Seed Oil 2.50%

Stearic Acid 3.00%

Cetyl Esters 4.00%

Dimethicone 4.00%

Glyceryl Stearate 1.20%

Ceteareth-20 0.80%

Miscellaneous Phase

Germall Plus 0.15%

Fragrance 0.25%

TEGO Alkanol S 2 P is a non-ionic, vegetable based, emulsifier for cosmetic O/W and partially also for W/O emulsions.

Suitable for skin care creams, lotions and the preparation of antiperspirants. Stable emulsions over a wide pH range.

TEGO Alkanol S 2 P emulsifies oils and fats in highly acidic or alkaline media and is easy to process.

Synonyms:

arlacel 985

brij 72

brij S2

hetoxol STA-2

lipocol S-2

nikkol BS-2

2- octadecoxyethanol (peg-2)

peg-2 stearyl ether

poly(oxy-1,2-ethanediyl), .alpha.-octadecyl-.omega.-hydroxy- (2 mol EO average molar ratio)

polyethylene glycol (2) stearyl ether

polyoxyethylene (2) stearyl alcohol ether

polyoxyethylene (2) stearyl ether

tego alkanol S 2 P

Steareth-2

2-(2-octadecoxyethoxy)ethanol

16057-43-5

Lipocol S-2

UNII-V56DFE46J5

V56DFE46J5

Procol SA-2

Genapol HS 020

PEG-2 Stearyl ether

Tego alkanol S 2 P

Brij-72

BRIJ s2

SCHEMBL145703

n-octadecyloxyethoxyethyl alcohol

DTXSID90936344

Polyethylene glycol (2) stearyl ether

2-[2-(Octadecyloxy)ethoxy]ethan-1-ol

Q27291552

What Is It?

The Steareth ingredients (Steareth-2, Steareth-4, Steareth-6, Steareth-7, Steareth-10, Steareth-11, Steareth-13, Steareth-15, Steareth-20) are polyethylene glycol ethers of stearci acid. They are waxy compounds. In cosmetics and personal care products, Steareth ingredients are used in the formulation of personal cleanliness products and deodorants, as well as suntan, fragrance, skin, eye and hair products.

Why is it used in cosmetics and personal care products?

When added to cosmetics and personal care products, the Steareth ingredients reduce the interactive forces between molecules of other liquids so that an emulsion is formed. If an ingredient such as a Steareth is not added to some personal care products, the ingredients in the product would separate like some salad dressings.

Scientific Facts:

The Steareths are prepared by reacting ethylene oxide with stearyl alcohol where the numerical value in the name corresponds to the average number of units of ethylene oxide. For example, Steareth-2 is prepared using an average of 2 units of ethylene oxide reacted with stearyl alcohol.

Name

Polyoxyl stearyl ether

EINECS 500-017-8

CAS No. 9005-00-9 Density 0.867g/cm3

Solubility Melting Point 56-60oC

Formula (C2H4O)nC18H38O Boiling Point 100oC

Molecular Weight 1151.56 Flash Point 154.2oC

Transport Information Appearance

Safety Risk Codes

Molecular Structure Molecular Structure of 9005-00-9 (Poly(oxy-1,2-ethanediyl),a-octadecyl-w-hydroxy-) Hazard Symbols

Synonyms

EM 1207;ESK 1;ESK 1 (demulsifier);Ekaline G 80;Emalex 602;Emalex 603;Emalex 605;Emalex 608;Emalex 610;Emalex 611;Emalex 620;Emalex630;Emalex 640;Emalex GL 15;Emulgen 306P;Emulgen 310;Emulgen 3140S90;Emulgen 320;Emulgen 320L;Emulgen 320P;Emulgen 350;Ethal SA 20;EthosperseCA 20;Ethoxylated octadecyl alcohol;Eumulgin S2;G 3694POE;G 3710;G 3720;G 3720POE;Genapol S;Genapol S 020;Genapol S100;Genapol S 150;Heptaethylene glycol monooctadecyl ether;Hetoxol STA 10;Hetoxol STA 2;Hetoxol STA 20;Hetoxol STA 30;Konion SA 10;Koremul SE-m;Levenol PW;Lipocol S 20;Lumulse S 20;Macol SA;Macol SA 10;Macol SA 100;Macol SA 15;Macol SA 2;Macol SA 20;Macol SA 40;Macol SA 5;Marlipal 1850;Mergital ST 30;Newcol 1807;Newcol 1820;Newcol 1880C;Nikkol BS 2;Nikkol BS20;Nissan Dispanol 16A;Nissan Nonion S 200.5S;Nissan Nonion S 202;Nissan Nonion S 207;Nissan Nonion S 215;Nissan Nonion S230;Noigen 140E;Glycols,polyethylene, monooctadecyl ether (8CI);A 10 (surfactant);Aduxol ST 04;Aduxol ST 05;Alkasurf SA 2;Avivan SO 6;BLAUNONSR-705;BS 20;

Berol 08;Blaunon SR 707;Blaunon SR711;Blaunon SR 720;Brij 700;Brij 72;Brij721;Brij 762;Brij 78;Cetalox AT;Disponil O 55;Nonion PS 2500;Nonion S 211;Nonion S 220;OS 20A;PES 20;POE stearyl ether;Peregol O;Pionin D 1405;Poly(ethylene oxide) monostearyl ether;Polyethoxylated octadecanol;SINOPOL 1807;Ethoxylated Stearyl Alcohols;

Eumulgin S 2 is a non-ionic emulsifier for various O/ W skin care emulsions, especially suitable for O/ W anti-perspirant roll-ons

Steareth-2. EUMULGIN S 2 by BASF is a non-ionic emulsifier. Steareth-2 is suitable for various O/W skin care emulsions and O/W antiperspirant roll-ons.

EUMULGIN S 2 finds application in hair coloring, baby care & cleansing, facial care cleansers and face-, color-, body-, sun- (sun protection, after-sun & self-tanning) care products.

Eumulgin S 2 is an ethoxylated stearyl alcohol that is used as a non-ionic emulsifier for cosmetic and pharmaceutical creams and lotions.

It is a white solid, with a faint characteristic odor, and a saponification value of < 2. This product has a hydroxyl value of 150-170, free ethylene oxide content of < 1 ppm, and a free dioxane amount of < 5 ppm.

APPEARANCE

White waxy solid

FUNCTION

Is an emulsifier for cosmetic W/O and co-emulsifier for O/W emulsions. It is suitable for skin creams and lotions, deodorant/antiperspirant sprays and roll-ons in combination with Steareth-2 or Steareth-21. It has stable emulsions over a wide pH range.

SYNONYMS

Brij S2-SO; Brij 72; Unijet 72; Polyoxyethylene ( 2 ) Stearyl Ether; Ethoxylated Dodecyl Alcohol; Ethoxylated Stearyl Alcohol