Lactobacillus/Acerola Cherry Ferment

Lactobacillus/Acerola Cherry Ferment is a fermented ingredient created by culturing beneficial Lactobacillus bacteria with acerola cherry, a tropical fruit exceptionally high in natural vitamin C. The fermentation process allows the bacteria to break down and enhance the bioavailability of the cherry's nutrients, resulting in a stabilised, probiotic-rich extract.The ingredient functions primarily as a skin protectant, working through both the prebiotic and antioxidant properties of its components. It is used sparingly in formulations—appearing in roughly 0.1% of skincare products—typically …

The Lactobacillus bacteria produce organic acids and bioactive compounds during fermentation that help lower the pH of the formula and generate a prebiotic environment. These bacterial metabolites can interact with the skin's own microbiome, supporting beneficial bacterial populations and strengthening the acid mantle—the skin's natural protective layer.The acerola cherry component delivers stabilised vitamin C and flavonoids. Vitamin C acts as an antioxidant, reducing free radical damage and supporting collagen health, whilst the flavonoids add additional antioxidant and anti-inflammatory …

This ingredient is typically found in leave-on products such as serums and moisturisers at low concentrations. Apply it as part of your regular skincare routine after cleansing and toning, before heavier creams. Because it is usually present in small amounts, compatibility with other actives is generally good, but introduce it gradually if you have very sensitive skin to monitor tolerance.

Lactobacillus/Acerola Cherry Ferment is generally well-tolerated. Those with known sensitivities to fermented ingredients or acerola cherry should perform a patch test first.