Cortisol: When Stress Deprives Your Hair Follicles of Nutrients

The Hormone Lab (Inside-Out)

Part 3 of 4 – Cortisol: When Stress Deprives Your Hair Follicles of Nutrients

 

Hey, sweetheart,

In our "Hormone Lab," we've already explored both the positive and negative aspects of hormones. Today, we're focusing on the ultimate party pooper that we all know all too well: stress.

Maybe you've experienced this yourself. After a particularly stressful period at work or in your personal life, you suddenly notice that much more hair is falling out than usual when you wash it, and your hair looks limp and dull.

It's not all in your head. Your hair reacts biologically to stress—and the culprit behind this drama is cortisol.

 

1. Cortisol: Your Body’s Personal Bodyguard (and Why We Need It)

Before we start demonizing cortisol, we need to understand that it’s actually a vital bodyguard. Cortisol is produced in the adrenal cortex (two small glands that sit like caps on top of your kidneys).

It is our most important stress hormone and, from an evolutionary perspective, an absolute lifesaver. When our ancestors had to flee from a saber-toothed tiger, cortisol put the body into the ultimate "fight-or-flight" mode:

- It releases energy reserves in the form of glucose (sugar) in a flash.

- It regulates blood pressure and reduces inflammation in the body.

- It regulates our sleep-wake cycle and wakes us up in the morning.

In short: Without cortisol, we wouldn’t be able to survive. The problem in our modern world is simply this: Today, the saber-toothed tiger has been replaced by an endless to-do list. We’re constantly stressed, and our cortisol levels often don’t drop properly anymore.

 

2. The Starvation Effect: Why Your Hair Follicles Are Starving

What does the body do when it’s constantly in survival mode? It prioritizes. Blood and energy are pumped to where they’re most urgently needed: the muscles, the heart, and the brain.

Functions that aren't essential for survival—such as digestion or hair growth—are ruthlessly put on the back burner. The persistently high levels of cortisol cause the tiny blood vessels in your scalp to constrict (vasoconstriction).

The direct result: Your hair follicle—the tiny factory beneath the skin where your hair is formed—is cut off from its supply of nutrients and oxygen. It starves. The hair becomes undernourished, stops growing, and prematurely enters the shedding phase (telogen phase).

 

3. Deep Dive: How to Free the Root from the Stress Trap

When hair follicles are stressed and deprived of nutrients, the last thing we want to do is further irritate them with harsh, chemical “growth boosters.” We need to soothe the scalp’s nervous system and gently restore blood flow where it has been blocked. To do this, we specifically harness the power of phytotherapy:

A) Blood orange oil (Citrus sinensis) – The circulation booster

When blood vessels are constricted by cortisol, we need to stimulate microcirculation (the fine blood flow) again. Blood orange essential oil works wonders here. It has a strongly revitalizing and warming effect on the scalp tissue. It helps the constricted blood vessels to gently dilate, so that fresh oxygen and essential nutrients can finally be transported back to the starved hair follicles.

• Your Routine: Our Alkaline Shampoo The Essential One is your best friend during stressful times. The mild formula with sugar-based surfactants gently cleanses, while blood orange oil stimulates blood circulation. At the same time, the lavender oil helps the stressed nervous system of the scalp wind down right in the shower.

B) Mullein Tincture (Verbascum thapsus) – The Liquid Shield

Mullein is one of the most impressive medicinal plants when it comes to soothing and protecting. When hair has been deprived of nutrients at the root for weeks, it often grows back thinner and more fragile. Mullein tincture is extremely rich in mucilage (saponins). These wrap around the stressed scalp like a soothing, anti-inflammatory bandage and strengthen the weakened hair shaft from the outside.

• Your routine: To really revitalize your hair and scalp, we recommend using our hair mask The Glowy One. It combines soothing mullein tincture with rich lipids from macadamia oil and nourishing proteins from goat’s milk. This gently replenishes the reserves that stress has depleted.

4. Take a deep breath—for yourself and your hair

Organic cosmetics can work wonders, but they’re no substitute for real rest. If you notice that your hair is falling out due to stress, see it as a gentle warning from your body.

Take some time for yourself. A gentle scalp massage while washing your hair, taking deep breaths, and consciously taking breaks can measurably lower your cortisol levels. Your hair (and your whole body) will thank you for it.

Hugs 🫶🏻

All the best,

Isabella