What it is
Produced by fermentation with Lactobacillus bacteria, this ingredient delivers the beneficial by-products of that ferment. It is used to soothe, condition, and help support a balanced, resilient skin surface, and is popular in barrier- and microbiome-focused products.
Safety & warnings
Generally gentle and well tolerated, including by sensitive skin.
Origin & sourcing
Produced by bacterial fermentation (Lactobacillus).
Questions everyone asks
What does lactobacillus ferment do?
It is a probiotic-derived ingredient used to soothe and condition skin and support a balanced surface.
Are there live bacteria in it?
No, it is the beneficial by-product of fermentation, not live cultures.