Science
Mechanism of Action
This extract operates through several key pathways to enhance skin health. It significantly improves skin hydration by delivering humectant-rich compounds such as amino acids and polysaccharides. For brightening, it expertly inhibits tyrosinase, the enzyme responsible for melanin synthesis, thereby regulating pigmentation. Its potent anti-inflammatory properties soothe irritation and reduce redness by modulating the skin's immune responses and lowering inflammatory markers. Furthermore, it supplies peptides that stimulate collagen production, while its lactic acid content helps balance skin pH and further aids collagen synthesis. Acting as a natural broad-spectrum antimicrobial, it fosters an environment inhospitable to detrimental microorganisms, thus helping to restore microbial balance. The extract also functions as a DNA repair enzyme, providing protection against environmental damage and neutralizing free radicals through its antioxidant capacity, ultimately strengthening the skin's protective barrier and providing essential nourishment.
Research
Clinical Evidence
High confidence5%
Key findings
- 01 At a 5% concentration, this extract demonstrated superior anti-acne efficacy, reducing the size and redness of lesions more rapidly than salicylic acid.
- 02 A 1% concentration significantly reduces skin sensitivity.
- 03 Studies confirm enhanced skin hydration through increased moisture levels.
- 04 The ingredient actively brightens skin by inhibiting tyrosinase and regulating melanin production, as evidenced by a 2022 study.
- 05 It effectively soothes irritation, redness, and sensitivity, attributed to its anti-inflammatory properties and ability to modulate the skin's immune response, as detailed in a 2020 review.
- 06 Formulations containing Lactobacillus ferment improved redness and sensitivity in 52 subjects with confirmed sensitive skin.
- 07 Topical applications featuring Lactobacillus plantarum extract reduced both inflamed and non-inflamed acne lesions over six weeks, and decreased lactic acid stinging (skin sensitivity) over a two-month period.
- 08 Lactobacillus Ferment Lysate Filtrate at 5% concentration achieved a notable 47% reduction in redness.
Transparency
Dusting Analysis
Clinical efficacy for key benefits such as reducing skin sensitivity begins at 1%. More pronounced effects, including anti-acne and significant redness reduction, are observed at concentrations of 5%. Formulations utilizing concentrations below 1% may not deliver substantial clinical results and warrant scrutiny regarding their advertised claims.
The Formula
Formulation
Stability
For optimal stability, incorporate Lactobacillus Ferment Extract into formulations during the cooling phase, ensuring temperatures remain below 70°C (158°F). The ideal storage temperature range is 23-25°C (73-78°F); freezing should be avoided.
Conflicts
- Should be incorporated before the addition of common thickeners like xanthan gum or Carbopol Ultrez 10 to ensure proper dispersion and efficacy.
Safety
Safety Profile
The Expert Panel for Cosmetic Ingredient Safety (CIR) has deemed Lactobacillus Ferment and its related derivatives (Filtrate, Lysate, Lysate Filtrate) safe for use in cosmetic applications. This ingredient is considered natural, safe, and non-toxic. However, individuals with sensitive skin should exercise caution due to a moderate risk of allergic reaction, and a patch test is highly recommended. No genotoxicity concerns have been reported. The highest documented concentration in face and neck products (excluding sprays) and other skincare preparations is 5.6%.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Lactobacillus Ferment Extract is a highly valuable, multi-functional postbiotic ingredient, clinically proven to address a wide array of skin concerns from acne and sensitivity to hydration and brightening, suitable for all skin types due to its low irritancy and comedogenicity.
Related
Similar Ingredients
Finding similar ingredients…