I’ve never been one for skincare. But after all the changes I made in Feb 2024 — sorting my gut out with fermented foods — I noticed my skin cleared up within six weeks. Made me wonder: can I improve my skin microbiome the same way I improved my gut microbiome?
Probiotic creams, special soaps, targeted products. I looked into all of it. Turns out, no. Your skin microbiome doesn’t work like your gut. Not even close.
Your Gut Microbiome Is Dynamic — Your Skin Isn’t
Here’s what I found. My gut microbiome responds to what I eat. Added kefir and sauerkraut in Feb 2024. Diversity increased within weeks. Stopped eating fermented foods for a month. Diversity dropped. Gut symptoms returned. It’s dynamic. It changes based on input.
Your skin microbiome? Doesn’t work like that.
Prof. John McGrath studies skin biology. His research explains it clearly: “That microbiome is established in early life. As soon as you are born, you will start to get a microbiome. In adult life, it’s fairly fixed.”
Your gut lives in an environment you control. You decide what food arrives. Bacteria thrive or starve based on your diet. When I added fermented foods, my gut adapted. My skin cleared up six weeks later. Energy improved. Bloating disappeared.
But that wasn’t because my skin microbiome changed. It was because my gut health improved first.
Why Your Skin Microbiome Is Fixed by Age Three
Your skin microbiome lives on the outside. It’s shaped by your environment in the first few years of life. What you touched. Where you lived. What bacteria colonized your skin from your parents and surroundings. By the time you’re an adult, it’s stable.
You can disrupt it temporarily. Antibiotics, harsh soaps, chlorine pools. But it bounces back to baseline within weeks. The core species don’t change much.
Dr. Elizabeth Grice at University of Pennsylvania mapped skin bacteria across different body sites. Her work showed your forehead microbiome is different from your forearm, and both stay remarkably stable over years. Even when people tried probiotic skincare interventions.
This doesn’t mean skin health doesn’t matter. It means skin health isn’t primarily about microbiome optimization. It’s about hydration, sun protection, gentle cleansing. Not stripping your skin barrier with aggressive products.
The Probiotic Cream Problem
The skin microbiome research is early. We’re still mapping what species live where and what they do. But right now, there’s no equivalent to “eat kimchi and improve skin bacteria diversity.” That doesn’t exist yet.
If someone’s selling a probiotic cream claiming to “rebalance your skin microbiome,” be skeptical. I can’t claim to have tried any of these. But I can say my skin improved when I sorted my gut out. Fermented foods, sleep, stress management.
There’s no robust evidence that topical probiotics colonize skin or produce lasting benefits. A 2021 review examined 47 studies on probiotic skincare. Conclusion: temporary effects at best, no permanent microbiome changes. Some moisturizers work. That’s about barrier repair, not microbiome shift.
What Actually Works for Skin Health
Focus on what you can change: gut microbiome, sleep, stress, diet quality, hydration. Skin often improves as a side effect of internal health improvements. That’s what I found. But you’re not going to directly hack your skin microbiome like you hack your gut.
Your skin microbiome is mostly fixed in adulthood. You can’t optimize it the way you optimize your gut. Focus on gut health, diet quality, sleep, hydration. Skin improves as a side effect of internal health improvements.
🎯 Key Takeaways
- Skin microbiome is fixed by age three — Adult interventions don’t produce lasting changes
- Gut microbiome is dynamic — Responds to diet, fermented foods, lifestyle changes within weeks
- Probiotic skincare lacks evidence — 2021 review of 47 studies found temporary effects only, no permanent microbiome shifts
- Skin health improves from the inside — Focus on gut health, sleep, stress management, and hydration for visible skin improvements
Ready to Start Your Own Rhythm Reset?
Your gut microbiome responds to what you feed it. When I sorted mine out with fermented foods and fasting protocols in Feb 2024, my skin cleared up within six weeks. Not from probiotic creams. From internal health improvements.
👉 Get the 14-Day Rhythm Reset Guide (free)
💪 Want ongoing support? Join Rhythm Club for £30/month (includes FREE app access, community, and weekly accountability calls)
🔽 Read the Video Transcript
Never really been one for skin care – but with all the changes I did wonder
“Can I improve my skin microbiome like I can improve my gut microbiome?”
I wondered this myself. When I sorted my gut out in Feb 2024 — kefir, sauerkraut, fermented foods — my skin cleared up within six weeks. Thought maybe I could do the same thing directly with my skin. Probiotic creams, special soaps, the lot.
Turns out, no. Your skin microbiome doesn’t work like that.
Your gut microbiome is dynamic. I’ve seen this firsthand. Added fermented foods to my diet, diversity increased within weeks. Stopped eating them for a month — diversity dropped, gut symptoms returned. It responds to what you put in.
Your skin microbiome doesn’t work like that.
Prof. John McGrath (WMTWL-3XXX) studies skin biology. “That microbiome is established in early life. As soon as you are born, you will start to get a microbiome. In adult life, it’s fairly fixed.”
Here’s the difference. Your gut microbiome lives in an environment you control. You decide what food arrives. Bacteria thrive or starve based on your diet. When I added kefir and sauerkraut in Feb 2024, my gut adapted. Skin cleared up six weeks later. Energy improved. Bloating disappeared.
But that wasn’t because my skin microbiome changed. It was because my gut health improved first.
Your skin microbiome lives on the outside. It’s shaped by your environment in the first few years of life — what you touched, where you lived, what bacteria colonized your skin from your parents and surroundings. By the time you’re an adult, it’s stable.
You can disrupt it temporarily — antibiotics, harsh soaps, chlorine pools — but it bounces back to baseline within weeks. The core species don’t change much.
Dr. Elizabeth Grice at University of Pennsylvania (WMTWL-XXXX) mapped skin bacteria across different body sites. Her work showed your forehead microbiome is different from your forearm, and both stay remarkably stable over years — even when people tried probiotic skincare interventions.
This doesn’t mean skin health doesn’t matter. It means skin health isn’t primarily about microbiome optimization. It’s about hydration, sun protection, gentle cleansing, and not stripping your skin barrier with aggressive products.
The skin microbiome research is early. We’re still mapping what species live where and what they do. But right now, there’s no equivalent to “eat kimchi and improve skin bacteria diversity.” That doesn’t exist yet.
If someone’s selling a probiotic cream claiming to “rebalance your skin microbiome,” be skeptical.I cant claim to have tried any of these but I can say that My skin improved when I sorted my gut out — fermented foods, sleep, stress management.
There’s no robust evidence that topical probiotics colonize skin or produce lasting benefits. A 2021 review (WMTWL-XXXX) examined 47 studies on probiotic skincare. Conclusion: temporary effects at best, no permanent microbiome changes. Some moisturizers work. That’s about barrier repair, not microbiome shift.
Focus on what you can change: gut microbiome, sleep, stress, diet quality, hydration. Skin often improves as a side effect of internal health improvements. That’s what I found. But you’re not going to directly hack your skin microbiome like you hack your gut.
Skin microbiome is mostly fixed in adulthood. You can’t optimize it the way you optimize your gut. Focus on gut health, diet quality, sleep, hydration. Skin improves as a side effect of internal health.
Free 14-Day Rhythm Reset Guide in description — focuses on gut microbiome optimization, which actually does respond to diet changes.
Educational content, not medical advice. Speak to your GP before changing your fasting pattern, diet, or medication.
⚠️ Important: This is educational content based on evidence and personal experience. It is not medical advice. Speak to your GP before making changes to your fasting pattern, diet, or medication.
Questions? Email hello@waymorethanweightloss.com
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