probiotic skin care
The skin is the body's first line of defense against external damage and is a complex "micro-ecosystem". The surface of the skin is home to a variety of microbial communities, including various bacteria, viruses, and fungi. These skin flora interact with the body to regulate and maintain normal skin homeostasis.
It has been scientifically proven that the skin and the gut are closely related (gut-skin axis), and more than 70% of the immune cells in the human body gather in the gut, affecting the health of the whole body. The balance of the intestinal microbiome will be manifested on the skin, such as intestinal barrier defects and immune system disorders caused by some intestinal diseases (celiac disease, allergies, IBD), which can lead to skin problems.
The skin microbiota, skin barrier function, and immune system are closely linked to each other and control a variety of fundamental skin functions. Modulation of the gut microbiota has beneficial effects on any microbial community, including the skin microbiome. Probiotics help the skin regain its healthy state by enhancing immunity, resisting and inhibiting the growth and reproduction of pathogenic bacteria, maintaining healthy intestinal flora and promoting digestion.
Gut microbiota can modulate the gut-skin axis through direct and indirect pathways. Lactobacillus and Bifidobacterium produce gamma-aminobutyric acid (GABA), which suppresses itchy skin. Some probiotics can produce serotonin, which is associated with skin pigmentation. Probiotics can regulate brain function and relieve anxiety and stress. Cortisol, normally released under stress conditions, can alter intestinal epithelial permeability and barrier function by altering the composition of the gut microbiota. This also alters the levels of circulating neuroendocrine molecules, such as tryptamine, trimethylamine, and serotonin, which alter the skin barrier and skin inflammation.
probiotic skin care
Oral probiotics or topical application of probiotics can regulate the release of inflammatory factors in the skin and the specific reduction of interleukin-1α, thereby reducing systemic inflammation and oxidative stress, with potential benefits for acne and seborrheic dermatitis. It can balance TH1/TH2, reduce the secretion of interleukin 5 and 10, and improve eczema and atopic dermatitis. Secondly, it has a positive effect on skin damage caused by ultraviolet rays.
