Science
Mechanism of Action
This ingredient functions as both an antioxidant and a skin-brightening agent. As a unique kojyl cinnamate ester, it acts as a peroxisome proliferator-activated receptor α/γ dual agonist. This mechanism upregulates the gene transcription of lipid metabolic enzymes within human epidermal keratinocytes, which are vital for maintaining the skin's permeability barrier integrity. Additionally, it has been observed to inhibit inflammation in human epidermal keratinocytes that is induced by ultraviolet B irradiation.
Research
Clinical Evidence
Medium confidence0.05% to 0.15%
Key findings
- 01 Clinical evaluations suggest that concentrations ranging from 0.05% to 0.25% in cosmetic compositions effectively deliver anti-aging, skin-brightening, and antioxidant benefits. A specific range of 0.05% to 0.15% by weight is preferred to maximize these effects while simultaneously preventing crystallization and enhancing formulation stability.
- 02 Broader application levels, spanning from 0.1% to 2%, are reported based on specific formulation requirements (e.g., dry powder versus aqueous blend), consistently demonstrating its capacity for antioxidant activity and skin brightening.
Transparency
Dusting Analysis
No information indicates this ingredient is commonly associated with 'dusting' in formulations; its primary stability concern relates to crystallization.
The Formula
Formulation
Stability
Kojyl Methylenedioxycinnamate possesses inherent strong crystallinity, which can make it challenging to dissolve in formulations and prone to crystallization and precipitation over time, thus compromising product stability and texture. Formulation strategies to mitigate this include dissolving it in polar oils and utilizing stabilizers such as mannosylerythritol lipid (MEL) to maintain stability even at higher concentrations.
Safety
Safety Profile
While its precursor, Kojic Acid, was deemed safe for cosmetic use up to 1% by the CIR, Kojyl Methylenedioxycinnamate itself has not undergone a specific public safety assessment by regulatory bodies such as CIR, SCCS, or FDA.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Kojyl Methylenedioxycinnamate is a valuable ingredient for targeting signs of aging and uneven skin tone, offering enhanced stability and a multi-functional approach to comprehensive skin health.
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References
Sources