Reserved area: Log in

Our fields of expertise

Cutaneous microbiota

A unique and variable ecosystem

The microbiota program

The human microbiota is composed of bacteria, fungi and viruses that interact with their host. Research on microorganisms inhabiting human skin and forming a finely tuned ecosystem with it is less advanced than that on the intestinal microbiota. Yet, the cutaneous microbiota plays a fundamental role in the health of our skin.

Based on its strong historic expertise in skin biology, microbiology and molecular biology, the R&D department began as of 2016 an ambitious research program aimed at the detailed examination of the cutaneous microbiota of healthy and compromised skin: the microbiota program.


  • Map and characterize the cutaneous microbiota
  • Develop a strain collection of cutaneous bacteria
  • Understand bacteria-skin or bacteria-bacteria interactions
  • Develop natural active ingredients that can protect, maintain or restore the cutaneous microbiota

Mapping the cutaneous microbiota

SILAB uses the meta-sequencing tool (MiSeq system) and its molecular biology and bioinformatic experts to map the cutaneous microbiota if it has not yet been published in the scientific literature.

Our teams have therefore shown for the first time in basic research that there is an imbalance in the microbiota of healthy Caucasian skin that occurs with age. These results have been published in the Journal of Applied Microbiology [1], after peer-review by experts in the field.

The two natural active ingredients ECOBIOTYS® and LACTOBIOTYL® have been substantiated in vivo by meta-sequencing.

[1] Jugé et al., Shift in skin microbiota of Western European women across aging, Journal of Applied Microbiology, 2018 Sept.; 125(3): 907-916.

Skin-microbiota relationships

Our microbiology experts got inspired by culturomics techniques (growth in selective medium, biofilm production, phylotyping, etc.) to isolate and characterize the bacteria of healthy or compromised skin. These perfectly traceable strains retain the functions of their original ecosystem and enrich our strain collection.

Their metabolism and behavior have been studied for a fuller understanding of bacteria-bacteria or bacteria-skin interactions and to test direct antimicrobial or anti-adhesion effects. These bacteria can also be applied alive in 3D models in vitro (SILABSKIN®).

Finally, in order to investigate heretofore unexplored pathways, SILAB is involved in a partnership network with internationally recognized scientists in this domain.

Our news about this expertise

SILAB Research at the IFSCC e-congress, 2020 Yokohama

Read more

New video! Discover how a desert climate bacterium is revolutionizing the treatment of dry skin

SILAB presents its video “From bio-inspiration to bioguiding: a unique cosmetic postbiotic designed for dry skin”.

Read more

Lactobacillus: from probiotics to postbiotics; bioguiding metabolic power of microorganisms

Postbiotics are bioactive metabolites produced by “good bacteria” such as Lactobacillus (i.e. probiotics). In the gut, lactobacillus-produced postbiotics favour the maintenance of the microbiota, improve...

Read more