Science
Mechanism of Action
Alcohol Denat. operates by solubilizing various ingredients, ensuring a homogenous product consistency. It acts as a penetration enhancer, thereby facilitating more efficient dermal absorption of other active compounds. As an astringent, it provides a temporary reduction in skin oiliness and a refreshing sensation. It also possesses inherent antimicrobial capabilities, functions as a viscosity-controlling agent for light, fast-absorbing formulas, and can mask odors. Additionally, it serves as a preservative to extend shelf life and may indirectly aid in the gentle loosening of dead skin cells.
Research
Clinical Evidence
Medium confidence5%
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Ethanol, the primary constituent of Alcohol Denat., exhibits robust stability across a wide pH range and maintains integrity even under high-temperature conditions.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel deemed specific Alcohol Denat. formulations, including certain SD Alcohols (e.g., 40-B denatured with Denatonium Benzoate), safe for cosmetic use without qualification. For other Alcohol Denat. variants, safety is generally considered up to 12% concentration, critically depending on the specific denaturing agents employed, as data was insufficient for certain denaturants like Quassin or Brucine. While the SCCS has not issued a specific opinion on ethanol, prior guidance suggests low toxicity in cosmetics. It is important to note that 'alcohol-free' labeling in cosmetics specifically refers to the absence of ethanol, not necessarily denatured alcohol.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While a highly functional solvent and penetration enhancer offering antimicrobial and astringent properties, Alcohol Denat. requires meticulous formulation and specific denaturing agents to mitigate its documented high irritancy potential and ensure optimal skin compatibility and safety.
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