STEPANOL WA-EXTRA* Sodium Lauryl Sulfate 29 Liquid STEOL CS-230* Sodium Laureth Sulfate 26 Liquid

 The following information is provided to assist in product recommendation associated with Stepan’s “sulfate-free” surfactants and blends for Perso...
Author: Aron Stevens
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The following information is provided to assist in product recommendation associated with Stepan’s “sulfate-free” surfactants and blends for Personal Care applications. It outlines flash foam, Biorenewable Carbon Index, and other surfactant properties of a select group of Stepan surfactants compared to competitive chemistries in the market place today. Stepan defines a product to be “sulfate-free” if it does not contain Alkyl Sulfates and Alkyl Ether Sulfates as per INCI nomenclature. This definition does not include inorganic sulfates, e.g. Sodium Sulfate formed as a by-product. Two representative sulfate products are noted for comparison purposes. Stepan Trade Name

INCI Name

Actives (%)

Form at 25°C

Shake Foam without oil (ml)

Shake Foam with oil (ml)

Biorenewable Carbon Index

CMC (mg/L)

STEPANOL® WA-EXTRA*

Sodium Lauryl Sulfate

29

Liquid

313

225

100

185

STEOL® CS-230*

Sodium Laureth Sulfate

26

Liquid

400

370

67

171

ALPHA-STEP® PC-48

Sodium Methyl 2-Sulfolaurate, Disodium 2-Sulfolaurate

39

Liquid

275

250

94

177

BIO-TERGE® AS-40

Sodium C14-16 Olefin Sulfonate

39

Liquid

550

350

0

301

65

Solid

375

343

86

131

LATHANOL® LAL POWDER Sodium Lauryl Sulfoacetate

STEPAN-MILD® LSB

Sodium Lauryl Sulfoacetate, Disodium Laureth Sulfosuccinate

25

Liquid

413

373

64

105

STEPAN-MILD® PCL

Sodium Methyl 2-Sulfolaurate, Disodium 2-Sulfolaurate, Sodium Lauryl Sulfoacetate

23

Liquid

448

430

90

65

Competitive Product

Coco-Glucoside

50

Liquid

332

175

NE

30

Competitive Product

Disodium Cocoyl Glutamate, Sodium Cocoyl Glutamate

25

Liquid

125

115

NE

226

Competitive Product

Potassium Laureth-1 Phosphate

35

Liquid

257

175

NE

36

Competitive Product

Sodium Cocoyl Glycinate

25

Liquid

202

105

NE

334

Competitive Product

Sodium Cocoyl Isethionate

80

Solid

275

230

NE

84

Competitive Product

Sodium Lauroyl Methyl Isethionate

80

Solid

285

178

NE

104

Competitive Product

Sodium Methyl Cocoyl Taurate

25

Solid

310

275

NE

101

*These products do not meet Stepan’s definition of sulfate-free as defined above. NE - Not Evaluated



The information on the following pages reflect a system containing 12% active of the noted surfactant and 3% active of AMPHOSOL® HCA (Cocamidopropyl Betaine). This includes appearance, foaming, and sensory properties. A 12% active surfactant to 3% active Betaine ratio is typical of conventional sulfate systems. Use levels and ratios of sulfate-free systems will vary.

Surfactant System Properties Stepan Trade Name

INCI Name

Form at 25°C

Appearance at 25°C

Viscosity, cps at 25°C

ALPHA-STEP® PC-48

Sodium Methyl 2-Sulfolaurate, Disodium 2-Sulfolaurate

Thin Liquid

Clear

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