Understanding the microbiome: What is the holobiont?

17-May-2022

The holobiont is a fascinating discovery for the promotion of holistic beauty, as Pascaline Criton writes

<i>The total number of genes in the collective human microbiome could be around 232 million</i>

The total number of genes in the collective human microbiome could be around 232 million

The interaction between a host organism and its microbial ecosystem is termed the holobiont, and Pascaline Criton, Marketing Communications Manager at cosmetic ingredients specialist Sederma (a member of Croda) tells Cosmetics Business that the holobiont is targeted as one of this year's biggest trends.

So, what do we need to know about this crucial relationship when it comes to skin care?


The microbiota is composed of a well-balanced population of commensal, symbiotic and pathogenic microorganisms. They interact with each other and with human cells.

This interaction between a host organism with its microbiota, a unique ecosystem composed of bacteria, fungi, yeasts, viruses, phages and mites, is called the holobiont.

Holobiont is one of the great trends for 2022.

The Human Microbiome Project (supported by the National Institutes of Health) started in 2007. In its first publication, in 2019, the team announced the identification of about 24 million bacteria in the mouth microbiome and 22 million in the gut microbiome.

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