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BACILLUS FERMENT

Last update on Feb 20, 2026

Bacillus Ferment is a probiotic-derived ingredient produced by the controlled fermentation of Bacillus species (commonly Bacillus subtilis or Bacillus licheniformis). It contains a complex of enzymes (proteases, lipases, amylases), peptides, amino acids, and postbiotic metabolites. This ferment provides gentle enzymatic exfoliation, antioxidant protection, barrier support, and microbiome-friendly conditioning. It is increasingly popular in enzyme peels, brightening serums, anti-aging treatments, masks, cleansers, and soothing products, offering smoother texture, improved radiance, and reduced irritation without the harshness of traditional exfoliants.

CAS Number: Chem/IUPAC Name: Bacillus Ferment EINECS/ELINCS No: COSING REF No: 54791

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What is BACILLUS FERMENT used for?

  • Enzymatic exfoliation: Gently breaks down dead skin cells and surface proteins. Frequently used in enzyme peels, masks, and cleansers for smoother, brighter, and more refined skin texture. Skin
  • Conditioning / Barrier support: Strengthens the skin barrier and improves hydration. Ideal for moisturizers, serums, and after-treatment products targeting dry, dull, or compromised skin.
  • Antioxidant & Soothing: Neutralizes free radicals and calms inflammation. Common in anti-aging serums, sensitive skin formulations, and post-procedure care for protection and comfort.

Origin

Bacillus Ferment is produced through microbial fermentation using Bacillus strains (often Bacillus subtilis) grown on nutrient media (e.g., soy, rice, or molasses). The fermentation process generates a rich mixture of enzymes, peptides, and metabolites. After fermentation, the broth is filtered, concentrated, and stabilized (sometimes with preservatives) to yield a liquid or powder form. This biotech-derived ingredient is renewable, biodegradable, and aligns with clean and probiotic-inspired skincare trends.

What does BACILLUS FERMENT do in a formulation?

SKIN CONDITIONING|
ANTIOXIDANT|
SOOTHING|
SMOOTHING

Safety Profile

Bacillus Ferment is considered safe for cosmetic use, with a low hazard rating from EWG (typically 1) and minimal concerns for irritation, sensitization, or toxicity at typical concentrations (0.1-5%). It is milder than mechanical or strong chemical exfoliants, showing low stinging potential. Rare allergic reactions may occur in individuals sensitive to microbial ferments. Patch testing is recommended.

BACILLUS FERMENT alternatives

BACILLUS FERMENT technical profile

PropertyValues
pH4.0 - 7.0
SolubilitySoluble in water
ViscosityLow

Formulations with BACILLUS FERMENT

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