TIME TO EXPLORE
Summer means sun, sea, relaxing, exploring, getting tan… but also working with more than 30°C in the office! Science never stops, so here we are once again talking about what has become the key word in the cosmetic world: the skin microbiota!
Speaking about the hot season, what happens when human skin is exposed to sun rays? A good sun care cream with SPF can make a difference and is absolutely required to protect the skin. What happens in real life is that sometimes it’s difficult to obtain a homogeneous distribution on every part of our body. Consequently, some areas are more or less exposed to UVA and UVB rays, production of melatonin is differently modulated and, even without noticing it, we develop 50 (or more) shades of coloured skin on our body.
That is more or less what our microbiota is like: it’s part of the same ecosystem, with huge differences within each body parts. As an example, there are specific locations with a unique microflora: gut, skin, scalp, oral and vaginal environments are simply so characteristic that their inhabitants are distinctive. Every district, were microbes live, is a balanced complex ecological system.
It also varies with skin regions: sebum rich, moist and dry areas are naturally different in chemical composition, therefore they attract different microorganisms.
In addition, like we were told as children, each of us is a different human being and we are unique… that is precisely another source of variability for microbiota! Also, are we the same person of that age? Precisely, time and ageing is another huge factor to consider. Our microbiota is in fact composed by transient and resident microbes; the former can grow because of particular condition: diseases, seasons, etc; the latter are what we can consider our real personal microbiota.
So… 50 shades? Or should I say thousands?! There’s endless possibilities!
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