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The gut-brain-skin axis. The skin does not function in isolation. It is connected to the gut, the immune system, and the brain through a constant communication network known as the gut-brain-skin axis.
What happens internally can directly influence how the skin behaves.
In recent years, research has shown that factors such as stress, diet, the state of the gut microbiome, or inflammation can alter the balance of this axis and manifest on the skin in the form of: sensitivity and reactivity, inflammation, redness, breakouts, dehydration, and the exacerbation of skin conditions such as acne, rosacea, or dermatitis.
The Role of the Gut
The gut microbiome participates in key processes for skin health, such as immune system regulation, inflammatory response, and metabolic balance.
When the gut microbiome loses diversity or balance (known as dysbiosis), inflammatory signals that affect the normal functioning of the skin may increase.
The Role of the Brain
The brain receives constant signals from the gut through various pathways. Psychological stress can alter gut function, modify the microbiome balance, and increase inflammation through neuroendocrine mechanisms.
The skin is often one of the first organs to reflect these changes.
How they communicate
The gut, brain, and skin communicate through immune signals, microbiome-produced metabolites, hormones, and neurotransmitters.
Skin health is profoundly influenced by the body's overall state and by the environment in which we live.
Another way to understand skin care
Understanding this axis changes the way we understand cosmetics.
The skin does not need to be constantly corrected or assaulted to function better. It needs balance.
That is why at Barriers we develop microbiome-intelligent formulas designed to:
