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Ingredient · INCI: Varies (ferments and lysates of beneficial bacteria)

Probiotics

In skin care, “probiotics” usually means ingredients made from beneficial bacteria, most often ferments or lysates, rather than live cultures.

What it is

A cosmetic can't keep live bacteria stable in a cream, so probiotic ingredients are normally the fermented or broken-down (lysate) form of bacteria such as Lactobacillus or Bifidobacterium.

On a pack they appear under their own INCI names, for example “Lactobacillus Ferment” or “Bifida Ferment Lysate”, so the word “probiotic” rarely appears in the declaration itself.

Why it's used

Formulators add them as skin-conditioning ingredients, and brands use the word to describe the ferment-based part of a formula.

Good to know

  • The listing for this BB cream says it contains 10 probiotics but doesn't name them. The exact ingredients are in the declaration printed on the pack.
  • As with any ingredient, ferment-based ones can still irritate some skins, so patch test first.

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