Science
Mechanism of Action
This ingredient functions as a multifunctional skin conditioner and keratolytic agent. By acting as an Alpha Hydroxy Acid (AHA) ester, it facilitates the gentle elimination of dead skin cells (corneocytes), supporting the natural turnover process. Simultaneously, its emollient structure reinforces the skin's lipid barrier, regulating sebum production and preventing trans-epidermal water loss without leaving a greasy residue.
Research
Clinical Evidence
Medium confidence10%
Transparency
Dusting Analysis
While often used as a secondary emollient or stabilizer at low concentrations, it requires levels near 1-5% to provide noticeable skin-softening and sebum-regulating benefits. It is rarely used as a 'marketing-only' ingredient because of its functional role in emulsion stability.
The Formula
Formulation
Stability
Highly compatible with oils, ethanol, and silicones. It serves as an effective emulsifier that improves the homogeneity and spreadability of both anhydrous and emulsion-based formulas.
Synergies
- Lipophilic actives
- Other AHA esters
- Silicones
Conflicts
- Water-only systems
- Propylene glycol
Safety
Safety Profile
Extensive testing, including human patch tests at 100% concentration, confirms it is non-irritating and non-sensitizing. Its precursor, malic acid, is considered GRAS (Generally Recognized as Safe) by the FDA.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An excellent multifunctional emollient that provides weightless hydration and gentle exfoliation, making it particularly useful for balancing oily and combination skin types.
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