Science
Mechanism of Action
This ingredient provides a bioavailable blend of amino acids and peptides to the skin, which are fundamental components for hydration and barrier support. Related hydrolyzed yeast extracts are recognized for their ability to stimulate endogenous hyaluronic acid production, leading to improved skin hydration and elasticity. Additionally, it can form a delicate film on the skin's surface, acting as a protective barrier and helping to mitigate the potentially irritating effects of cleansing formulations.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This ingredient is water-soluble, with its solubility enhanced by the hydrolysis process. Formulators should be aware that protein hydrolysates can be sensitive to mechanical stresses, which may lead to denaturation or aggregation. Storage stability can also be affected by non-enzymatic browning reactions, such as the Maillard reaction.
Conflicts
- Polysaccharides (due to thermodynamic incompatibility)
- Maleimide, vinyl sulfone, and acrylamide groups (can cause protein modification/cross-linking)
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has deemed the broader category of 'Yeast-derived ingredients as Used in Cosmetics,' which includes hydrolyzed yeast protein, as safe for cosmetic applications. Although specific individual data for Hydrolyzed Schizosaccharomyces Protein is not extensively detailed, its classification within this safe category is relevant. Related yeast hydrolysates (from Saccharomyces cerevisiae) have demonstrated no acute oral toxicity in rats at concentrations up to 5000 mg/kg bw.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This hydrolyzed yeast protein is a valuable skin conditioning and moisturizing agent, offering hydration and smoothness through its amino acid and peptide content, with a well-established broad safety profile.
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References
Sources