Science
Mechanism of Action
This ingredient operates on several fronts: it acts as a robust skin conditioning agent, improving texture and suppleness while reducing flaking. Its rich composition, including oligosaccharides, polysaccharides, beta-glucans, and lipids, supports the skin's barrier function and boosts resilience. Studies indicate its capacity to stimulate collagen production, which helps diminish the appearance of fine lines. Furthermore, it exhibits humectant properties for hydration, antioxidant activity to protect against free radical damage, and anti-inflammatory effects to soothe sensitive or irritated skin, alleviating redness and discomfort. When incorporated into specific complexes, it has demonstrated the ability to stimulate the skin's own hyaluronic acid synthesis, contributing to a smoother, more moisturized complexion.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Demonstrated ability to bolster skin's natural moisturizing factor, preserve barrier function, improve hydration, enhance overall skin brightness, and reduce itchy skin.
Transparency
Dusting Analysis
Hydrolyzed Yeast Extract offers a wide range of documented benefits, making it a genuinely valuable active ingredient rather than one typically used for superficial marketing claims.
The Formula
Formulation
Stability
This ingredient is optimally stable within a pH range of 6.5 to 7.5 for solutions (e.g., 2% and 10%). Being water-soluble, its specific solubility can vary with the extract's precise composition. Modern manufacturing processes, including heating above 50°C, atomization, and sterilization, ensure that no viable yeast remains in the final cosmetic product, enhancing both stability and safety.
Synergies
- Other water-binding agents for enhanced hydration and barrier support
- Humectants and moisturizers, due to its ability to stimulate hyaluronic acid synthesis
Conflicts
- strong oxidants
Safety
Safety Profile
The CIR Expert Panel generally considers yeast-derived ingredients, including Hydrolyzed Yeast Extract, safe for cosmetic use, provided they originate from specific yeast species with established dermal sensitization and food use status. Although a November 2023 draft report issued an Insufficient Data Announcement (IDA) for a broader group of 56 yeast-derived ingredients, requesting additional confirmatory data, general safety is affirmed. Saccharomyces cerevisiae, a common source, is recognized as GRAS by the FDA. Acute oral toxicity tests showed no toxicity at a dose of 5000 mg/kg bw, and primary dermal irritation studies categorized it as very slightly irritating to non-irritating (Toxicity Category IV), indicating a low risk for skin irritation.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Hydrolyzed Yeast Extract is a valuable, multi-functional ingredient that significantly boosts skin hydration, supports barrier integrity, offers antioxidant and soothing benefits, and contributes to a smoother, brighter, and more resilient complexion.
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