Preprint Article Version 1 This version is not peer-reviewed

Respect of Skin Microbiome with Different Types of LeavE-on Skincare Products, an Ecobiological Approach

Version 1 : Received: 29 May 2020 / Approved: 31 May 2020 / Online: 31 May 2020 (20:12:40 CEST)

How to cite: Callejon, S.; Giraud, F.; Larue, F.; Buisson, A.; Matéos, L.; Grare, L.; Guyoux, A.; Perrier, E.; Ardiet, N.; Trompezinski, S. Respect of Skin Microbiome with Different Types of LeavE-on Skincare Products, an Ecobiological Approach. Preprints 2020, 2020050500 (doi: 10.20944/preprints202005.0500.v1). Callejon, S.; Giraud, F.; Larue, F.; Buisson, A.; Matéos, L.; Grare, L.; Guyoux, A.; Perrier, E.; Ardiet, N.; Trompezinski, S. Respect of Skin Microbiome with Different Types of LeavE-on Skincare Products, an Ecobiological Approach. Preprints 2020, 2020050500 (doi: 10.20944/preprints202005.0500.v1).

Abstract

Background: Skincare products are used daily to maintain a healthy skin (cleansing, moisturizing, protecting…), but their impact on this first layer, which corresponds to the skin microbiome, is still poorly understood. Preserving natural resources and mechanisms of the skin ecosystem is essential; an original approach based on these premises, called ecobiology, has recently emerged in skincare. Ecobiology considers the skin as an ever-evolving ecosystem which hosts human and microbial cells that interact together with their environment. In this context, we evaluated the impact on the skin microbiome of three types of leave-on face skincare products: a hydrophilic sterile solution, a micellar solution, and an oil-in-water emulsion. Materials and Methods: The individual microbial profiles of 20 Caucasian females were investigated. Samples were obtained twenty-four hours and four days following a daily application of the skincare products versus control area where no product was applied. To analyze the bacterial diversity and abundance of skin microbiome, a 16SrRNA gene sequencing was performed using the Illumina MiSeq platform. Results: Our results confirm the overall diversity of skin microbiome as previously observed and notably reveal the prevalence of Cutibacterium spp. and Staphylococcus spp. on sebaceous site (the back). Bacterial diversity and abundance were not affected by the products either twenty-four hours or four days after application, as indicated by comparison with the control. Moreover, no dissimilarity was observed between the three products versus their control, neither between each product. Conclusions: These preliminary results demonstrated for the first time that three different types of leave-on face skincare products such as a hydrophilic sterile solution, a micellar solution, and an emulsion have no impact on skin microbiome and can be considered as “microbiome friendly”.

Subject Areas

skin microbiome; skincare; cosmetic products; ecobiology; microbiome friendly

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