Surfactants

Surfactants: Acyl-amino acids and salts

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There are three categories of acyl amino acids and salts, which are anionic surfactants. Acyl glutamates Acyl peptides Acyl sarcosides Acyl glutamates are created by the acylation of glutamic acid, a naturally occurring amino acid. They are poor foamers but very gentle cleansers that are mild to the skin and eyes, and are generally used...

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Surfactants: Phosphate esters (category)

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Phosphate esters are a category of anionic surfactants that include alkyl phosphates and alkyl ether phosphates. We don’t use phosphate esters in our bath & body products much as they are generally used in household cleaning products due to their low pH. They are very mild to the skin and might show up in facial...

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Surfactants: Taurates (or taurides) – like sodium methyl cocoyl taurate or sodium methyl oleoyl taurate (SMC taurate or SMO taurate)

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Taurates (or taurides) are anionic acylamino alkane surfactants with a chemical structure very close to that of the isethionates. They are gentle cleansers used to increase the viscosity in a surfactant mix, and are generally used as co-surfactants. They were used a lot in commercial shampoos and body washes, but have now been replaced by...

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Surfactants: Disodium laureth sulfosuccinate (DLS) – a type of sulfosuccinate

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If you’ve read any of the shampoo posts on this blog, you’ll know I love sulfosuccinates! This happy molecule is disodium laureth sulfosuccinate (known as DLS mild) and it is a mono-ester of a sodium salt. Sulfosuccinates are generally sodium salts of alkyl esters of sulfosuccinic acid that are a result of condensation of maleic...

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Surfactants: Alkyl-aryl sulfonates

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The linear alkylbenzene sulfonate (LAS) is one of the most widely used detergents, but its use in personal care is very limited. It has a very low compatibility with skin, and is usually only used in anti-seborrheic or very oily skin cleansers.This picture is of sodium linear alkyl benzene sulfonate. It has good detergency and...

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