Science
Mechanism of Action
The ingredient exerts its effects through a synergistic blend of active components. Lactobacillus ferments contribute broad-spectrum antimicrobial activity and bolster skin's defenses through immunomodulation and enhanced barrier function, demonstrated by stimulating Toll-like Receptor 2 (TLR2) in reporter cells and inhibiting paracellular molecular transfer in human primary keratinocytes. Catharanthus roseus seed extract provides significant antioxidant protection against free radical damage, supporting anti-aging initiatives. Hydrolyzed casein introduces skin-benefiting peptides, while yeast extract acts as a general skin conditioner and protectant. Glycerin provides essential humectant properties, drawing moisture to the skin.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
No data indicates this ingredient is subject to cosmetic 'dusting'.
The Formula
Formulation
Stability
This ingredient is water-soluble and best incorporated into formulations during the cooling phase at temperatures below 70°C (158°F), ideally before the addition of thickeners. All final formulations must undergo challenge testing to ensure proper preservation and stability.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has deemed Lactobacillus Ferment and various yeast-derived ingredients safe for cosmetic use. Lactobacillus Ferment has a reported maximum use concentration of 5.6% in face and neck products. However, the CIR advises formulators to be mindful of its potential to inhibit tyrosinase, which could lead to unintended skin depigmentation, classifying such an effect as a drug claim. This specific complex ingredient has not been individually reviewed by the CIR or SCCS.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This innovative ferment offers a compelling range of skin benefits—from conditioning and antioxidant defense to potential barrier support—derived from well-regarded components, positioning it as a valuable addition for enhancing skin vitality, though specific clinical validation for the complete complex would provide even greater precision.
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References
Sources