Science
Mechanism of Action
This compound acts as a pro-drug for cysteine, a vital amino acid necessary for the de novo synthesis of glutathione within the skin. Glutathione serves as a potent endogenous antioxidant, diligently scavenging free radicals to shield the skin from oxidative stress implicated in natural and photo-induced aging. Concurrently, Oxothiazolidinecarboxylic Acid directly inhibits the tyrosinase enzyme, thereby reducing melanin synthesis and resulting in noticeable skin lightening and whitening effects. Additional benefits include softening the stratum corneum, stimulating cell regeneration, accelerating the exfoliation of keratinocytes, and imparting moisturizing and conditioning attributes to the skin.
Research
Clinical Evidence
Medium confidence0.5%
Key findings
- 01 Demonstrated highly effective inhibition of the tyrosinase enzyme, achieving up to a 92.2% reduction in activity, which correlates with significant skin lightening and whitening outcomes.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Exhibits inherent stability across a broad pH spectrum, ensuring consistent performance in various formulations.
Safety
Safety Profile
While not yet evaluated by the Cosmetic Ingredient Review (CIR), EWG Skin Deep assesses its risks for cancer, allergies, immunotoxicity, and developmental/reproductive toxicity as 'LOW'. PubChem lists GHS hazard statements (H315, H319, H335) for the raw chemical, but these warnings pertain to the concentrated substance and are not typically indicative of the safety profile at cosmetic usage levels. It is formally recognized as an INCI ingredient.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Oxothiazolidinecarboxylic Acid is a valuable, multifaceted ingredient that effectively brightens the complexion, provides robust antioxidant protection, and enhances overall skin conditioning and regeneration.
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