Common Name(s): Bifida polysaccharide,bifida polysaccharide,bifidobacterium postbiotic,skin barrier microbiome support
CAS Number: N/a
DESCRIPTION
What It Does: Strengthens skin barrier through bifidobacterium-produced lactate and acetate reinforcing acid mantle ph, upregulates claudin and occludin tight junction proteins through short-chain fatty acid (scfa) hdac inhibition, and provides anti-inflammatory trained immunity from tlr2-active cell wall lipoteichoic acid.
Why It's Used: Bifidobacterium is the dominant healthy infant microbiome organism associated with intact skin barrier โ topical bifidobacterium postbiotics replicate the barrier-supporting metabolite profile of the healthy microbiome in adult skin where bifida abundance naturally declines.
How It Works: Bifidobacterium fermentation produces: lactate (ph 4.5 acid mantle reinforcement); acetate and butyrate (hdac inhibition โ claudin-1/occludin gene upregulation โ tight junction strengthening); lta (tlr2/tlr6 โ il-10 anti-inflammatory tolerance training); exopolysaccharide (humectant film formation). bifida polysaccharide binds dectin receptors providing additional innate immunity training.
Typically Found In: Microbiome skin care,barrier repair,sensitive skin
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: Yes
Halal Status: Yes
Source Notes: Fermentation-derived or plant-extracted.
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
Bifidobacterium abundance is inversely correlated with atopic dermatitis severity โ clinical studies show bifida ferment postbiotic application reduces transepidermal water loss and erythema scores in atopic skin, providing the mechanism-linked efficacy basis for eczema-adjacent microbiome skin care claims.
Last Verified: 2026-03-22
Primary Sources: Cosing database,bifidobacterium postbiotic skin barrier microbiome review