Science
Mechanism of Action
Functions as a gamma-hydroxy acid by disrupting intercellular bonds between keratinocytes in the stratum corneum to accelerate cellular turnover. Simultaneously provides antioxidant protection through free radical scavenging and inhibition of matrix metalloproteinases and reactive oxygen species, supporting collagen preservation.
Research
Clinical Evidence
Medium confidence2.5%
Key findings
- 01 Patent study demonstrating improved skin texture, luminosity, and reduced appearance of fine lines and pigmentation at 0.5-10% with lower irritation versus AHAs
- 02 Concentration range study showing effectiveness from 0.01-30% for photodamage treatment, with professional treatments utilizing up to 30%
Transparency
Dusting Analysis
Given the established effective range starting at 0.1% for daily cosmetic use, concentrations below this threshold may indicate dusting rather than therapeutic dosing.
The Formula
Formulation
Stability
Exceptionally thermally stable up to 300°C and resistant to decarboxylation unlike other hydroxybenzoic acid isomers. Limited water solubility at 7.25 mg/mL but highly soluble in ethanol and glycols.
Conflicts
- Strong oxidizing agents
- Strong bases
- Iron salts
Safety
Safety Profile
FDA-approved as flavoring agent (FEMA 4431) and EU CosIng database classified for skin conditioning. Patent literature indicates superior tolerability profile compared to glycolic and salicylic acids.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A well-tolerated multi-functional ingredient that delivers effective exfoliation with antioxidant benefits across all skin types.
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References
Sources