Science
Mechanism of Action
As a polypropylene glycol, PPG-3 functions by creating a protective film on the skin's surface, which helps to retain moisture and promote hydration. It also acts as an emulsifier, stabilizing oil and water mixtures, and as a solvent, improving the efficacy and absorption of other key ingredients.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
PPG-3 is primarily a formulation excipient and conditioning agent, not typically marketed as a 'hero' active ingredient prone to exaggerated claims or 'dusting'.
The Formula
Formulation
Stability
PPGs generally require careful formulation to ensure they are nonirritating, particularly when used in higher concentrations. When properly incorporated into cosmetic formulas at appropriate levels, PPG-3 is stable and contributes to desirable product textures and sensory experiences.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has deemed PPGs ≥3 safe for use in cosmetic formulations, provided they are formulated to be nonirritating. They are considered safe at concentrations up to 50.0%. While raw PPGs can exhibit irritating properties, this risk is significantly mitigated when used correctly in finished products.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PPG-3 is a valuable ingredient, serving as a versatile skin conditioner, solvent, and emulsifier, widely considered safe and effective when correctly integrated into skincare formulations.
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References
Sources