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BACILLUS/CORN STEEP SOLIDS FERMENT FILTRATE.

Valuable CAS 9016-18-6 / ANTIPLAQUE

A sophisticated postbiotic ingredient engineered through the microbial fermentation of corn-derived nutrients by Bacillus bacteria. This process yields a bio-available filtrate rich in metabolites that harmonize the skin's ecosystem while providing structural anti-aging benefits.

Skin conditioning Barrier repair Microbiome support Anti-aging Humectant

Science

This ingredient functions by delivering a concentrated profile of low-molecular-weight peptides, amino acids, and organic acids directly to the stratum corneum. These metabolites reinforce the skin’s Natural Moisturizing Factor (NMF) and stimulate the synthesis of collagen IV and elastin, effectively strengthening the dermal-epidermal junction and stabilizing the resident microbiome.


Research

Medium confidence
Effective range 1–20%
Optimal

5%

Key findings

  1. 01 A 2024 study in the Journal of Cosmetic Dermatology observed significant wrinkle reduction, hydration increases, and skin brightening in sensitive subjects using mixed ferments containing this filtrate at 5-20%.
  2. 02 Technical evaluations indicate that concentrations as low as 1-5% are sufficient for basic barrier fortification and skin conditioning.

Transparency

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

Due to its complex INCI name, it is frequently used in trace amounts (<0.1%) to support 'microbiome-friendly' marketing claims. However, clinical data suggests that a minimum of 1% is required for tangible barrier benefits, with 5% being the threshold for anti-aging efficacy.


The Formula

Solubility
Water
Optimal pH 4 – 7
0 7 14

Stability

The filtrate is heat-stable up to 50°C, though incorporation during the cool-down phase (<40°C) is recommended to ensure the integrity of heat-sensitive bioactive peptides.

Synergies

  • Bifida Ferment Lysate
  • Hyaluronic Acid
  • Niacinamide
  • Ceramides

Conflicts

  • Strong oxidizing agents
  • Formula pH levels below 3.5 or above 8.5

Safety

CIR Status
Not reviewed
Pregnancy
Safe
Sensitization risk Low

While not specifically reviewed by the CIR, the Bacillus genus and the corn steep liquor substrate have extensive safety records in both food and pharmaceutical applications.


Your Skin

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

Our Assessment

Valuable

An excellent multi-tasking ferment that provides meaningful microbiome support and structural skin benefits when formulated at active concentrations.


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