Stearyl acetate

Stearyl acetate (CAS 822-23-1 ), also known as octadecyl acetate, is a long-chain fatty acid ester used as a lubricant, emollient carrier, and dispersing agent across personal care and industrial formulations.

Its waxy, low-polarity character makes it effective in applications where controlled slip, film formation, or solubilization of actives is required. In personal care, it functions as an emollient and texture modifier.

It is used in creams, lotions, and hair conditioners, contributing a smooth, non-greasy skin feel without heavy residue. Formulators incorporate it as a carrier solvent for fragrance oils and UV filters.

It is also utilized for lipophilic actives in leave-on and rinse-off products. In lubricant and metalworking formulations, it acts as a base fluid component or additive to reduce friction and improve adhesion.

The compound also serves as a dispersing medium for pigments and waxes in cosmetic color products such as lipsticks and pressed powders. This versatility makes it a staple in high-performance manufacturing.

Stearyl acetate is supplied as a white to off-white waxy solid or flake. Technical and cosmetic-grade material are the standard commercial forms, with cosmetic grade being the primary specification demanded.

Purity levels typically range from 95% upward, with documentation aligned to standard cosmetic ingredient requirements. This ensures consistent performance and safety across various industrial and consumer applications.

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