Hydrolyzed Yeast Protein
What is Hydrolyzed Yeast Protein?
Hydrolyzed yeast protein originates from yeast, usually Saccharomyces cerevisiae, where proteins are enzymatically or chemically broken into smaller peptides for better absorption. In cosmetics, it serves as a multifunctional conditioner in shampoos, conditioners, and skin lotions. It functions by adhering to hair cuticles or skin layers, creating a lightweight film that locks in hydration, minimizes surface friction, and boosts suppleness. This natural-derived ingredient supports barrier function without heaviness, making it suitable for daily use in rinse-off and leave-on formulas. Its peptide structure mimics skin's natural moisturizing factors, aiding in texture refinement for both hair shafts and epidermal surfaces.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Improves hair structure and strength
Enhances hair conditioning for shine and manageability
Supports moisturizing effects on hair and skin
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| Individuals with dry or brittle hair | People with yeast allergies |
| People seeking better skin hydration | Individuals sensitive to protein-based ingredients |
| Those looking to manage dandruff-prone scalps | Those with specific fungal sensitivities |
Safety Notes
- Considered low hazard in cosmetic concentrations
- Typically non-comedogenic and gentle for regular use
Frequently Asked Questions about Hydrolyzed Yeast Protein
What is hydrolyzed yeast protein?
Peptides from broken-down yeast proteins used to condition hair and skin by forming a hydrating film.
Is it safe for sensitive skin?
Generally low irritation potential, but patch test if allergic to yeast.
What products use it?
Common in shampoos, conditioners, and moisturizers for conditioning effects.