Complexions on the Hill

Maggie Miley Kelly · Licensed Esthetician · Educator · Author

Your Skin on Stress · Module 03

The Gut–Skin–Brain Axis

Your gut, skin and brain are in constant conversation. Stress disrupts all three at once — and healing one begins to heal the others.

✦ Tap any card to explore that system

Brain

Hypothalamus · HPA axis · cortisol · stress command center

Tap to explore the brain's role →
CRH signal ↙     Cortisol ↘

Gut microbiome

Trillions of microbes regulate immunity · mood · inflammation

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Skin microbiome

Barrier · immune defense · reflects internal imbalance

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vagus nerve ↑   shared immunity ↔   neuropeptides ↑

The vagus nerve — the master connector

Runs from brainstem to gut · carries 80% of signals upward · activated by breathing, touch and sound

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When under chronic stress

Gut dysbiosis

Stress kills beneficial bacteria · leaky gut

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Barrier disruption

Skin becomes porous · reactive · dehydrated

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Neuroinflammation

Brain fog · anxiety · heightened reactivity

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The healing opportunity

Healing entry points

Feed the gut · calm the nervous system · repair the skin barrier · all three respond together

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Probiotics

Feed good bacteria

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Breathwork

Activates vagus nerve

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Gentle skincare

Protects skin biome

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Sleep

Restores all three

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✦ Maggie's note
You cannot truly heal the skin without considering the gut and the nervous system. This is why holistic skincare works — because it treats the whole system, not just the surface.