Cosmetic ingredient

STEARAMIDE AMP

STEARAMIDE AMP is an amide made from a long chain joined to a portion containing an alcohol and an amine. That combination helps explain why it behaves differently from an oil: its structure has a long, fatty-like section alongside a more polar end.

INCIST1 products
CAS number
36284-86-3
Chemical name
Octadecanamide, N-(2-hydroxy-1,1-dimethylethyl)-

STEARAMIDE AMP: what it is

STEARAMIDE AMP is an amide made from a long chain joined to a portion containing an alcohol and an amine. That combination helps explain why it behaves differently from an oil: its structure has a long, fatty-like section alongside a more polar end.

The name does not mean stearin oil or pure stearic acid. It is a defined substance, also identified as N-(1-hydroxy-2-methylpropan-2-yl)octadecanamide, so in a shampoo or liquid cleanser it is a formula component rather than the product's main oily material.

STEARAMIDE AMP: what it does in cosmetics

In products that lather, STEARAMIDE AMP can boost the foam made by cleansing agents. In everyday use, that can make foam feel more present while the product is spread and worked through, particularly in rinse-off liquid formulas.

It also controls viscosity, meaning it helps adjust whether a product pours readily or feels thicker when it leaves the package. This supports consistency and the application experience; it does not by itself make a skin or hair treatment.

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Products containing this ingredient

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