The mechanism behind Probiotics / Postbiotics is precise: Lysates and metabolites regulate skin microbiome; strengthen barrier; reduce dysbiosis. That specificity is what separates it from broader-category ingredients that work in less targeted ways.
The scientific name is Lactobacillus Ferment, etc.. Lysates and metabolites regulate skin microbiome; strengthen barrier; reduce dysbiosis. This mechanism is consistent across properly formulated products, which means the real variable is concentration and delivery system.
Typical working concentration is 0.1–5%. Best suited to all, especially sensitive/acne-prone skin. Primary applications: microbiome balance, barrier support, anti-inflammatory.
Works well with: Ceramides, prebiotics.
Probiotics (live), postbiotics (lysates/metabolites) — postbiotics more stable in formulas.