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KLUYVEROMYCES/LACTOBACILLUS/EVENING PRIMROSE FLOWER OIL FERMENT FILTRATE.

Valuable / ANTIOXIDANT, ASTRINGENT, BLEACHING, HAIR CONDITIONING, SKIN CONDITIONING, SKIN PROTECTING

This advanced ferment filtrate combines the probiotic power of Kluyveromyces and Lactobacillus with the nourishing properties of Evening Primrose Flower Oil. It is engineered to provide comprehensive skin health benefits, focusing on anti-inflammatory action, enhanced hydration, and robust skin barrier support.

Summary

skin conditioning emollient antioxidant anti-inflammatory moisturizer antimicrobial

Science

Mechanism of Action

This ingredient functions through a synergistic blend of components. Evening Primrose Oil delivers vital linoleic acid (LA) and gamma-linolenic acid (GLA). GLA acts as a precursor for anti-inflammatory eicosanoids, suppressing inflammatory mediators like IL-1β, IL-6, and TNF-α. LA is crucial for reinforcing the stratum corneum, effectively preventing transepidermal water loss, boosting skin elasticity and softness, and regulating epidermal keratinization to fortify the skin barrier. Lactobacillus ferment, a key component, additionally acts as a potential DNA repair enzyme, providing protection against environmental aggressors, while also exhibiting antimicrobial and anti-inflammatory properties that foster a balanced skin microflora.

Research

Clinical Evidence

Medium confidence
Effective range 1–5%
Optimal

5%

Key findings

  1. 01 Lactobacillus Ferment demonstrated a reduction in skin sensitivity at a 1% concentration.
  2. 02 At a 5% concentration, Lactobacillus Ferment showed efficacy against acne, diminishing the size and redness of lesions and actively neutralizing harmful bacteria.
  3. 03 Evening Primrose Oil, a primary component, consistently improves skin hydration and barrier function, exhibiting notable anti-inflammatory benefits.
  4. 04 Studies on Evening Primrose Oil also highlight its utility in addressing eczema, alleviating skin sensitivity, and enhancing the skin's overall water balance.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

An optimal pH range for stability is not explicitly detailed for the complete combined ingredient. However, the 'ferment filtrate' designation suggests that components of the typically oil-insoluble Evening Primrose Oil have been processed to become more water-soluble or dispersible, indicating versatility in both aqueous and oil-based formulations.

Safety

Safety Profile

CIR Status
Insufficient data | safe as used
Max tested
5.6%
Sensitization risk Low

Lactobacillus Ferment and its filtrate are deemed 'safe as used in cosmetics' by the CIR Expert Panel (June 2025), with applications reported up to 5.6% in face and neck products. Conversely, 'Kluyveromyces Extract', reviewed by CIR in January 2024, has 'insufficient data to make a determination of safety.' There is currently no specific CIR, SCCS, or FDA assessment available for the exact combined ingredient, KLUYVEROMYCES/LACTOBACILLUS/EVENING PRIMROSE FLOWER OIL FERMENT FILTRATE.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Low
Comedogenicity Medium

Our Assessment

Verdict

Valuable

A valuable multi-functional ingredient, offering significant benefits for dry, sensitive, and normal skin through its anti-inflammatory, hydrating, and barrier-strengthening actions, with specific efficacy observed for acne, despite composite safety data requiring nuanced interpretation.

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