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Fermented humectant

SACCHAROMYCES WATER

78

Safety score · 0–100

Fine

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

Saccharomyces water is a yeast-fermented ingredient that adds vitamins and amino acids to formulations. It is generally well tolerated and gentle, though batch composition can vary between suppliers.

Function

ANTIOXIDANT, HAIR CONDITIONING, SKIN CONDITIONING - MISCELLANEOUS, SKIN CONDITIONING - OCCLUSIVE

Skin benefits

  • Yeast-derived water provides B-vitamins and amino acids that support skin hydration
  • Contributes humectant properties to leave-on and rinse-off formulations
  • Generally well tolerated on intact skin with low irritation potential
  • Used as a marketing-friendly alternative to plain aqua in clean beauty

Known concerns

  • Fermentation by-products may trigger reactions in those sensitised to yeast
  • Compositional variability between suppliers makes safety profile batch-dependent
  • Limited published clinical data versus established humectants like glycerin

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.