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Moumoujus

HYDROGENATED CASTOR OIL/DIMER DILINOLEIC ACID COPOLYMER.

Valuable / ANTICAKING

This versatile copolymer, derived from hydrogenated castor oil and dimer dilinoleic acid, functions as a multi-benefit film-former and emollient. It creates a protective, glossy layer on the skin while also providing hydration and improving product consistency.

Summary

Emollient Film-forming agent Viscosity controlling Thickener Occlusive Humectant Skin conditioning agent Skin protecting agent Water resistance

Science

Mechanism of Action

HYDROGENATED CASTOR OIL/DIMER DILINOLEIC ACID COPOLYMER forms a thick, glossy film on the skin's surface, acting as an effective occlusive barrier that minimizes transepidermal water loss. Its composition, particularly the ricinoleic acid component, imparts humectant properties, attracting and retaining moisture. Beyond hydration, it enhances formulation texture, acts as a skin conditioning and protecting agent, and contributes to water resistance with good water-absorption capacity.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH 3 – 7
0 7 14

Stability

Stable within a pH range of 3-7 under normal environmental conditions. Avoid strong acid or strong alkali conditions, which can lead to hydrolysis. Do not expose to temperatures above 80 degrees Celsius.

Conflicts

  • strong acids
  • strong alkalis

Safety

Safety Profile

CIR Status
Safe as used
Max tested
50%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel deemed related dialkyl dimer dilinoleates safe for cosmetic use when formulated to be non-irritating and non-sensitizing. A closely related compound has been reported in lip products at up to 48.7%. Generally considered non-irritating, a 2-week rat study showed no irritation at 10% and 25%, and guinea pig studies indicated no sensitization. However, a 4-day cumulative guinea pig study noted slight erythema at 10% and well-defined erythema in 2 out of 5 animals at 20%. EWG Skin Deep rates it low for concerns like cancer and immunotoxicity.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

This ingredient offers valuable emollient, film-forming, and humectant properties across all skin types, contributing to skin protection and product stability with a strong safety profile.

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