In skincare, Lactobacillus Ferment Lysate is recognized for its ability to support the skin’s microbiome, enhance barrier function, and provide soothing effects. Clinical studies have demonstrated that formulations containing this ingredient can decrease transepidermal water loss (TEWL), reduce redness, and improve skin hydration. These effects are attributed to its capacity to modulate the skin’s immune responses and promote the production of antimicrobial peptides, thereby reinforcing the skin’s natural defenses.
In hair care applications, Lactobacillus Ferment Lysate contributes to scalp health by balancing the microbial environment, which can alleviate issues such as dandruff and irritation. Its antimicrobial properties help in maintaining a healthy scalp, while its soothing effects can reduce itchiness and discomfort.

Quick Insights
Ingredient Rating:
GREAT
Type of Ingredient:
Hydrator, Antioxidant, Soother, Anti-Inflammatory Agent, Microbiome Balance Agent, Barrier Support and Preservative
Intended Function:
To enhance skin and scalp health by supporting the microbiome, strengthening barrier function, and providing soothing and antimicrobial effects.
Common Applications:
Lactobacillus Ferment Lysate is incorporated into a variety of cosmetic products, including moisturizers, serums, facial cleansers, toners, shampoos, conditioners, and scalp treatments.
Target Audience:
Individuals with sensitive skin, compromised skin barriers, acne-prone skin, or scalp issues such as dandruff and irritation.
Also Known As:
Lactobacillus Ferment Lysate, Lactobacillus Ferment, Postbiotic Ferment Lysate.
Safety Analysis
Lactobacillus Ferment Lysate is generally considered safe for topical use in cosmetic products. It has a low potential for irritation and sensitization. However, as with any cosmetic ingredient, it is advisable to conduct patch testing, especially for individuals with known sensitivities. The Environmental Working Group (EWG) rates this ingredient with low hazard scores across cancer, allergies, and immunotoxicity concerns.
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