Common Name(s): Milk ferment,milk ferment,milk/multi-strain ferment,dairy postbiotic complex
CAS Number: N/a
DESCRIPTION
What It Does: Delivers the synergistic postbiotic output of multiple dairy fermentation organisms โ lactic acid acid mantle reinforcement, bacteriocin antimicrobials, ergothioneine antioxidant from yeast fraction, bifidogenic galactooligosaccharides from beta-galactosidase, and bioactive casein peptides.
Why It's Used: Multi-strain dairy ferments provide greater metabolite diversity than single-organism ferments โ the combined organism assembly mirrors the traditional artisanal fermentation complexity of kefir and aged dairy, with each organism contributing complementary skin-active metabolites.
How It Works: Multi-strain fermentation: lactobacillus โ lactic acid + bacteriocins; leuconostoc โ mannitol + dextran eps; lactococcus โ nisin antimicrobial; kluyveromyces โ beta-galactosidase (lactose โ gos prebiotic) + ergothioneine. casein hydrolysis by microbial proteases โ bioactive peptides (antihypertensive, antimicrobial, immunomodulating).
Typically Found In: Microbiome skin care,k-beauty,postbiotic
TECHNICAL DETAILS
Primary Category: Active ingredient โ skin microbiome support
Secondary Functions: Microbiome balance,prebiotic effect
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.5%โ15%
SOURCING & ETHICS
Vegan Status: No - animal-derived
Halal Status: Conditional - dairy or egg origin statement required, plus rennet and enzyme origin upstream
Source Notes: Fermentation-derived or plant-extracted. [audit 2026-07-29 rev2: dairy or egg protein; rennet and enzyme origin upstream are undocumented. determination requires shariah-panel sign-off.]
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low
Comedogenicity Rating: 0/5 โ non-comedogenic
Sensitivity Concerns: Non-irritating; beneficial for sensitive skin.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Ceramides,niacinamide,soothing actives
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Dairy ferment vegan status: dairy-substrate ferments (containing milk proteins/lactose) are not vegan โ cosmos certification requires verification that no animal-derived substrates remain in the final extract.
Last Verified: 2026-03-22
Primary Sources: Cosing database,multi-strain dairy ferment postbiotic complex review