Autolyzed Yeast
What is Autolyzed Yeast?
Autolyzed yeast comes from yeast cells, usually Saccharomyces cerevisiae, that undergo autolysis—a natural process where the cells' own enzymes break them down into smaller components like amino acids, peptides, nucleotides, vitamins, and minerals. In cosmetics, it serves as a skin conditioning agent, often in moisturizers, creams, serums, and masks. It works as a humectant to draw moisture into the skin, an emollient to soften and smooth the surface, and a protector to bolster the skin's barrier against environmental stressors. This breakdown releases bioactive elements that support skin's natural processes without introducing live organisms, making it suitable for various formulations focused on daily nourishment and comfort.
Benefits
Supports skin hydration by attracting and holding moisture
Softens and smooths skin texture
Delivers amino acids and vitamins to nourish skin cells
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| People with dry or dehydrated skin | Anyone with known yeast or fungal allergies |
| Individuals with sensitive skin seeking gentle care | People sensitive to yeast-derived products |
| Those looking for barrier-supporting ingredients | Those with compromised skin barriers without patch testing |
Safety Notes
- Low hazard rating from safety assessments
- Minimal risk of pore clogging with comedogenic score of 0
Frequently Asked Questions about Autolyzed Yeast
What is autolyzed yeast?
It is yeast cells broken down by their own enzymes, yielding amino acids, peptides, and nutrients for skin conditioning in cosmetics.
Is autolyzed yeast safe for sensitive skin?
Yes, it has a low hazard rating and gentle profile, suitable for most, though patch test if allergic to yeast.
Does autolyzed yeast clog pores?
No, it has a comedogenic rating of 0, making it unlikely to contribute to breakouts.