- PROBIOTIC SKINCARE -

February 2021 - Academic Review

Department of Microbiology and Immunology, University of Western Ontario

(London, Canada)

Canadian Centre for Human Microbiome and Probiotic Research, Lawson Research Institute

(London, Canada)

https://pmc.ncbi.nlm.nih.gov/articles/PMC7956298

This academic review describes how topically-applied probiotic strain Bifidobacterium longum has been shown to cosmetically improve human skin (e.g. enhance appearance, reduce moisture loss) while in a deactivated state (postbiotic, not live/active).

April 2023 -  Clinical Observation (University-Industry Collaborative Study)

Department of Cosmetic Science, Chia Nan University of Pharmacy & Science

(Tainan, Taiwan)

Research and Development Department, GenMont Biotech Incorporation

(Tainan, Taiwan)

Department of Biomedical Sciences, Chung Shan Medical University

(Taichung City, Taiwan)

https://pmc.ncbi.nlm.nih.gov/articles/PMC10148562

There were no medical conditions treated in this study. Probiotic strain Lacticaseibacillus paracasei, applied topically to the scalp, was shown to increase hair growth and volume, reduce oil production and reduce dandruff in healthy participants.

September 2023 - University-Industry Collaborative Review

Shandong Academy of Science, Qilu University of Technology

(Jinan, China)
Huaxi Biotechnology Co., Ltd.

(Jinan, China)

https://pmc.ncbi.nlm.nih.gov/articles/PMC10574390

This review describes how topically-applied probiotic strain Lactobacillus plantarum has been shown to cosmetically improve skin tone, pigmentation, hydration and the appearances of wrinkles, with the last two effects being more prominent when the strain is heat-killed (postbiotic, not live/active). It also explains how heat-killed Bifidobacterium longum, applied topically, is beneficial to sensitive skin.