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Skin Conditioning

LACTOBACILLUS/BETULA PLATYPHYLLA JAPONICA JUICE FERMENT

70

Safety score · 0–100

Fine

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

About

Lactobacillus-fermented Japanese birch sap — a trendy post-biotic ingredient. Gentle on skin but data is mostly supplier-sourced.

This ingredient is the fermentate produced when Lactobacillus cultures ferment the sap/juice of Betula platyphylla japonica (Japanese white birch). It is used in cosmetics for skin-conditioning and humectant claims, leveraging both birch-sap constituents (sugars, betulin-family compounds, minerals) and fermentation metabolites (peptides, organic acids, exopolysaccharides). Listed in EU CosIng; no SCCS opinion. Public safety data is limited; batch composition varies with strain and fermentation conditions. Requires proper preservation because ferments can support microbial regrowth if under-preserved. Evidence level low for this specific ingredient.

Function

ANTIOXIDANT

Skin benefits

  • Post-biotic skin-barrier support
  • Humectant sugars
  • Botanical heritage
  • Gentle at use levels

Known concerns

  • Thin cosmetic safety data
  • Batch variability
  • Preservation critical

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 — always read the physical product label and consult a healthcare professional for personal concerns.