Lactobacillus Lysate

Lactobacillus lysate is a processed form of beneficial bacteria that has been broken down (lysed) to release its cellular contents. Rather than introducing live microorganisms to the skin, this ingredient delivers the bioactive compounds naturally produced by lactobacilli — including amino acids, peptides, and metabolites — without the viability concerns of live cultures.The ingredient is derived from probiotic bacteria species commonly used in food and supplement applications. When applied topically, these lysates are thought to communicate with the skin's natural microbiome and support it…

Lactobacillus lysates work through several mechanisms. The broken-down bacterial cells release bioactive molecules that can be absorbed by the skin and recognised by immune receptors, triggering a protective response. Key amino acids like alanine and other metabolites may directly support skin barrier protein synthesis and strengthen the stratum corneum.Additionally, these lysates appear to interact with the skin microbiome — the community of bacteria living on the skin's surface — helping to shift its composition towards more protective species and reducing the inflammatory signals associa…

Lactobacillus lysate is typically found in serums, essences, and moisturisers rather than as a standalone product. It can be used daily as part of a regular routine. Because it complements barrier-support strategies, consider pairing it with a good moisturiser and sunscreen to maximise skin health benefits. If introducing it for the first time, patch test first, especially if you have very reactive skin.

Lactobacillus lysate is generally well-tolerated across skin types. As a non-viable ingredient, it carries minimal risk of microbial contamination or unexpected immune reactions. Those with severe bacterial sensitivities or immune-compromised conditions should consult a healthcare provider before use.