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BACILLUS/EQUISETUM ARVENSE EXTRACT FERMENT.

Valuable / HUMECTANT, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

A bio-engineered botanical active that merges the mineral-rich profile of Horsetail with the transformative power of Bacillus fermentation. This process enhances the bioavailability of organic silica and creates a nutrient-dense broth of peptides and amino acids to support skin architecture and hydration.

Structural Fortifier Antioxidant Humectant Textural Refiner

Science

This ingredient functions as a structural fortifier by providing orthosilicic acid, a bioavailable form of silica that facilitates collagen cross-linking and strengthens connective tissues. During fermentation, Bacillus bacteria release proteolytic enzymes that gently refine skin texture, while simultaneously breaking down complex botanical polysaccharides into low-molecular-weight Natural Moisturizing Factors (NMFs). Furthermore, high concentrations of caffeic acid deliver a robust antioxidant shield, neutralizing oxidative stress at the cellular level.


Research

High confidence
Effective range 0.1–0.4%
Optimal

0.4%

Key findings

  1. 01 A 2021 CIR safety assessment confirmed that a 0.4% concentration in leave-on formulas passed Human Repeated Insult Patch Tests (HRIPT) on over 200 subjects with zero sensitization.
  2. 02 In vitro analysis at 25 μg/ml demonstrated a measurable reduction in lipid peroxide levels, highlighting significant antioxidant capacity.
  3. 03 Oral toxicity benchmarks for the substrate plant indicate a No-Observed-Adverse-Effect Level (NOAEL) of 3.0%, reinforcing its high biological safety profile.

Transparency

Commonly dusted
Min. effective
0.1%
Red flag below
0.05%

Due to its premium fermentation process, this ingredient is frequently used at 'claim levels' (below 0.1%). To achieve measurable improvements in skin density and antioxidant defense, it should ideally be formulated near its 0.4% safety-tested maximum.


The Formula

Solubility
Water
Optimal pH 4.5 – 7
0 7 14

Stability

Exhibits excellent stability in aqueous systems and emulsions; the fermentation process inherently protects phenolic acids from rapid oxidation compared to raw extracts.

Synergies

  • Vitamin C
  • Peptides
  • Hyaluronic Acid

Conflicts

  • Strong oxidizing agents
  • pH levels below 3.5 (which may precipitate silica components)

Safety

CIR Status
Safe as Used (Substrate finalized 2021)
Max tested
0.4%
Pregnancy
Safe
Sensitization risk Low

Safety is inferred from the parent Equisetum Arvense extract and the well-documented profile of Bacillus-derived ferments in topical applications.


Your Skin

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

Our Assessment

Valuable

A sophisticated multi-tasker that excels in structural anti-aging and barrier support through advanced bio-fermentation.


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