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BIFIDA POLYSACCHARIDE.

Essential CAS - / HUMECTANT

A high-performance postbiotic sugar fraction derived from Bifidobacterium longum that serves as a sophisticated cellular messenger. Unlike traditional ferments, this specific polysaccharide extract focuses on signaling the skin to self-hydrate and reinforce its structural integrity at a molecular level.

Humectant Barrier Repair Postbiotic Skin-Conditioning

Science

It functions as a dual-action biological humectant. Primarily, it upregulates the HAS2 gene to trigger endogenous hyaluronic acid synthesis within dermal fibroblasts, while simultaneously catalyzing the production of cornified envelope proteins to seal the skin barrier. Furthermore, it modulates the skin microbiome by producing short-chain fatty acids that support natural repair processes.


Research

High confidence
Effective range 1–5%
Optimal

3%

Key findings

  1. 01 Demonstrated significant reduction in transepidermal water loss (TEWL) and measurable hydration increases over 28 days at a 3% concentration.
  2. 02 In-vitro evidence of stimulated hyaluronic acid synthesis and increased cornified envelope protein production for enhanced barrier resilience.

Transparency

Commonly dusted
Min. effective
1%
Red flag below
0.5%

Due to its premium nature and efficacy at low percentages, many formulas include it below 1% for 'label claims' without achieving the threshold required to trigger the HAS2 gene expression seen in clinical trials.


The Formula

Solubility
Water
Optimal pH 4 – 7.5
0 7 14

Stability

Highly robust and heat-stable; unlike live probiotics, it maintains bioactivity under standard shelf conditions. Should be incorporated below 40°C to ensure structural integrity of the polysaccharide chains.

Synergies

  • Hyaluronic Acid
  • Niacinamide
  • Ceramides
  • Peptides

Conflicts

  • Ethanol (high concentrations)
  • Strong cationic surfactants
  • Extreme acidity (pH < 3.0)

Safety

CIR Status
Safe as used
Max tested
10%
Pregnancy
Safe
Sensitization risk Low

Classified as GRAS (Generally Regarded as Safe). As a non-living bacterial fraction, it poses no risk of infection or over-colonization common with live cultures.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Essential

A superior, stable postbiotic that transitions skin from passive hydration to active, endogenous moisture production.


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References