Gut health and skin health are linked

It’s well known that the skin is the body’s largest organ, protecting it from germs and helping regulate body temperature. What may come as a surprise is that the skin hosts a complex microbiome that’s linked to gut health; what’s more, over-washing can disrupt this delicate balance.

The importance of your skin’s microbiome

The skin microbiome plays a vital role in maintaining overall health by supporting interactions of the body’s largest organ with the immune system. It maintains a slightly acidic pH that inhibits harmful pathogens, producing antimicrobial substances and acting as a protective barrier.

Certain skin microbes contribute to hydration and barrier function by breaking down lipids and producing beneficial compounds, such as vitamin B derivatives.

The gut-skin axis

The gut and skin are connected through the gut-skin axis, the bidirectional relationship between the gut microbiome and skin health. A healthy gut microbiome produces short-chain fatty acids like butyrate, which reduce inflammation and help prevent skin conditions such as acne, eczema, and psoriasis.

Diet’s important role

Diet plays a crucial role in maintaining a balanced gut microbiome. Consuming prebiotics (found in high-fibre foods like fruits and vegetables) and probiotics (found in fermented foods like yogurt, kefir, kimchi, and sauerkraut) nourishes beneficial gut bacteria, supporting skin health.

On the other hand, diets high in processed foods, sugar, or dairy may disrupt gut balance and worsen skin conditions.

Clean, but not too clean

Over-showering and using harsh soaps can interfere with the skin’s microbial balance by stripping away beneficial microbes and compromising the skin’s natural protective barrier.

Impacts of microbiome imbalance

A disrupted skin microbiome can greatly impact skin health, notably by contributing to acne and dryness. An imbalance in the microbiome can lead to the overgrowth of Cutibacterium acnes, a bacterium that triggers inflammation and exacerbates acne.

Staying clean without compromising your microbiome

There are several ways to achieve a balanced hygiene routine that supports the skin and gut.

• Use gentle skincare products, such as pH-balanced (around 4.5 to 5.5), fragrance-free cleansers, and soaps with minimal surfactants to preserve beneficial skin microbes.
• Avoid antimicrobial soaps unless medically necessary, as they can disrupt the microbial diversity.
• Limit showering to once daily or every other day with lukewarm water for five to 10 minutes to avoid stripping natural oils and microbes, which maintain the skin’s barrier.
• Limit exfoliation to one to two times per week with gentle chemical exfoliants, such as lactic acids, to avoid disrupting the skin’s microbial diversity.
• Apply moisturizer post-shower to lock in hydration and support the skin’s lipid barrier, and use broad-spectrum sunscreen daily to protect against UV damage.

By Gail Johnson

Article Courtesy of Alive Magazine