Science
Mechanism of Action
This ingredient functions by creating a protective, breathable film on the skin's surface, significantly improving product moisture resistance and aiding in moisture retention. As a skin conditioning agent, its polylactic acid component gently moisturizes, softens, and contributes to overall skin texture improvement. It also supports mild skin renewal through gentle exfoliation and facilitates the uniform dispersion of pigments within cosmetic formulations.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
POLYLACTATE/RICINOLEATE (C'ESTER PLPR) demonstrates robust thermal stability, withstanding temperatures up to 260°C. However, the degradation of its polylactic acid component is primarily influenced by moisture, temperature, polymer molecular weight, and the ratio of lactic to glycolic acid. Acidic conditions are known to accelerate the breakdown of its ester bonds. It is not soluble in water, alcohols, or linear hydrocarbons.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has assessed both Polylactic Acid and ricinoleic acid derivatives, which comprise this ingredient, as safe for cosmetic use under current practices. Polylactic Acid is also approved by the FDA for use in surgical devices and as a food contact substance. A human repeated insult patch test using a product containing 4% Polylactic Acid reported no issues, indicating a favorable safety profile.
Your Skin
Skin Compatibility
Our Assessment
Verdict
POLYLACTATE/RICINOLEATE is a valuable multi-functional ingredient that enhances skin hydration, refines texture, and provides formulation stability, all supported by a favorable safety assessment.
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