Science
Mechanism of Action
This peptide works by signaling the skin to activate its endogenous repair mechanisms, promoting the synthesis of new collagen. Glycine, a key component, is crucial for supporting the skin's elasticity and maintaining its structural strength. Additionally, it functions as a humectant, drawing moisture into the skin, and as a film-forming agent, providing a protective barrier to aid in moisture retention.
Research
Clinical Evidence
Medium confidenceN/A
Transparency
Dusting Analysis
Precise optimal concentrations for Glycine Soja Peptide are not available in the provided data, as it was not reported in use in a 2014 CIR survey. While other related soy proteins and peptides were noted in use up to 3.5%, the lack of specific efficacy data for this exact compound makes it difficult to establish a dusting threshold or red flag percentage.
The Formula
Formulation
Stability
The activity of related soy oligopeptides demonstrates greater stability at a neutral pH of 7.0. Formulations involving similar soy proteins often include pH adjustments to ensure stability within this range.
Conflicts
- Individuals with known soy allergies should exercise caution.
- Not recommended for use in treatments targeting melasma due to the phytoestrogenic properties associated with soy.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel affirmed the safety of soy proteins and peptides, including Glycine Soja Peptide, for cosmetic application. Despite soy being a recognized food allergen, the low molecular weight and water-soluble nature of these peptides are believed to limit significant dermal penetration, thereby minimizing the risk of Type I allergic reactions. Studies on both animals and humans showed no evidence of skin irritation or allergic reactions from cosmetic use. The FDA classifies soy protein isolate derivatives as Generally Recognized As Safe (GRAS) for direct food substances, and for migration to food from paperboard products. No specific maximum concentration for Glycine Soja Peptide was reported in a 2014 CIR survey, though other soy proteins and peptides were used up to 3.5%.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Glycine Soja Peptide is a valuable ingredient for improving skin elasticity and structure through collagen stimulation and hydration, though caution is advised for individuals with soy allergies or melasma.
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