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ACETYLATED HYDROGENATED CASTOR OIL.

Valuable CAS 92113-20-7 / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

Acetylates Hydrogenated Castor Oil is a versatile skin-conditioning emollient that forms a protective, hydrophobic barrier on the skin. Its unique acetylation process enhances stability, spreadability, and compatibility with other oils and waxes.

emollient skin conditioning viscosity controlling

Science

This ingredient functions as an occlusive emollient, creating a surface film that significantly reduces trans-epidermal water loss (TEWL). It also forms a barrier to mitigate the skin penetration of irritating water-soluble actives, protecting skin integrity.


Research

Medium confidence
Effective range 0.5–15%
Optimal

N/A

Key findings

  1. 01 In concentrations of 0.5% - 10%, it demonstrably reduced the skin penetration of thioglycolic acid by at least 45%, providing significant protection during chemical depilation.

Transparency

Not commonly dusted

The Formula

Solubility
Oil
Optimal pH 3 – 10
0 7 14

Stability

Highly stable due to hydrogenation and acetylation, which minimizes susceptibility to oxidation and rancidity. It can be heated to 70-80°C in the oil phase without degradation.

Conflicts

  • Strong oxidizing agents
  • Highly alkaline environments (>pH 12) can slowly hydrolyze acetyl groups over time

Safety

CIR Status
Safe as used
Max tested
100%
Sensitization risk Low

The CIR Expert Panel concluded it is safe for use in cosmetics. Generally regarded as non-toxic and non-irritant, it is typically used below 15% in leave-on products.


Your Skin

Yes Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

This ingredient is valuable for its potent barrier-forming and emollient properties, offering superior skin protection and conditioning with a low irritancy risk across various skin types.


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