Science
Mechanism of Action
This dipeptide acts by inhibiting tyrosinase, the enzyme critical for melanin synthesis, thereby reducing hyperpigmentation and promoting a brighter complexion. Beyond pigmentation control, Glycyl Tyrosine enhances skin hydration and accelerates cellular metabolism, promoting the synthesis and renewal of collagen to improve elasticity and firmness. Furthermore, it exhibits potent antioxidant capabilities, scavenging free radicals to mitigate oxidative stress, and provides soothing relief from external irritants, reducing redness and discomfort.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Glycyl Tyrosine demonstrates high water solubility (36.9 g/L at 25°C) and robust stability, maintaining its integrity during temperature sterilization and prolonged storage. It dissolves readily in water at neutral pH without destabilizing the formulation's pH.
Safety
Safety Profile
The CIR Expert Panel deems amino acid alkyl amides, including components of Glycyl Tyrosine, safe when formulated to be non-irritating. Specifically, tyrosines have shown no adverse cutaneous effects (irritation or sensitization) in animal models at concentrations up to 1%. L-amino acids are generally recognized as safe (GRAS) by the FDA for dietary use. No specific SCCS opinion for Glycyl Tyrosine is available.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Glycyl Tyrosine is a valuable multi-functional dipeptide offering demonstrable benefits in brightening, hydration, collagen support, and soothing, supported by robust mechanistic data, though specific human clinical studies were not detailed in the provided research.
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References
Sources