Oral Care
STREPTOCOCCUS SALIVARIUS/HYDROLYZED NONFAT DRY MILK FERMENT
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A dairy-derived postbiotic ferment from S. salivarius — used in probiotic oral-care formulations.
Streptococcus salivarius/hydrolyzed nonfat dry milk ferment is the inactivated fermentation product of S. salivarius grown on hydrolysed skim milk. S. salivarius (K12/M18 strains in particular) is a commensal oral bacterium studied for bacteriocin production that suppresses pathogenic streptococci and Actinobacteria. Cosmetic use is mostly in oral care and some microbiome-friendly skin formulations. Dairy allergens (casein, whey) must be disclosed. No CIR/SCCS monograph exists; generally considered low-risk based on food-grade analogues.
Function
Skin benefits
- Postbiotic oral-care ingredient from S. salivarius fermentation
- Produces bacteriocins supporting healthy oral microbiome
- Claimed anti-halitosis and plaque-reduction activity
Known concerns
- Dairy-derived ingredient — dairy-allergy labelling
- Postbiotic claims often outpace clinical evidence
- Limited independent safety literature
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related oral cares
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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.