A recent study by Unilever, in collaboration with the University of Liverpool, has revealed an important connection between the skin microbiome and psychological well-being. Published in the British Journal of Dermatology, the research found that a greater presence of the bacterium Cutibacterium in various areas of the body, such as the face and armpits, is consistently associated with lower levels of stress and an improvement in mood.
This finding supports the emerging, although already popular, concept of the "skin-brain axis", which suggests a bidirectional interaction between skin health and mental well-being. Although previous research had established links between gut bacteria and mental health, this is one of the first times that a similar relationship has been demonstrated with skin bacteria.
Jason Harcup, R&D Director at Unilever Beauty and Wellbeing, highlighted that these results are especially relevant in a context where consumers are looking for comprehensive solutions that address both physical appearance and emotional well-being. The goal is to develop holistic products that improve the overall health of consumers, both internally and externally.
The study was carried out by Unilever scientists in association with the Microbiome Innovation Center and the Brain and Behavior Laboratory of the University of Liverpool.