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Dr. Eric Berg DC
12:039/25/25

How to Reverse Hair Loss

TLDR

Reversing hair loss involves addressing insulin resistance, stimulating scalp health through mechanical and light therapies, and providing key nutrients to support follicle function and reduce DHT.

Takeways

High DHT, exacerbated by insulin resistance, causes hair loss by damaging hair follicles.

Microneedling and red light therapy stimulate stem cells and mitochondrial function in the scalp.

Zinc, vitamin D, rosemary oil, and a diet rich in liver, onions, sauerkraut, and pumpkin seeds support hair growth.

Hair loss, primarily androgenic, occurs when excessive DHT leads to inflammation, reduced oxygen, and scar tissue around hair follicles. The root cause for many is insulin resistance, which exacerbates DHT conversion. Effective strategies combine managing insulin resistance with therapies like microneedling and red light, along with specific nutrients and natural DHT inhibitors, to restore follicle health and stimulate hair growth.

Hair Loss Mechanism

00:00:47 Androgenic hair loss, or pattern baldness, is characterized by hair loss on the top of the head while other areas grow hair. This occurs because the hair follicle, an environment around the hair that requires significant oxygen and mitochondrial energy, is compromised. As people age, testosterone decreases while dihydrotestosterone (DHT), a more powerful form of testosterone, increases, leading to inflammation, lack of oxygen (hypoxia), and scar tissue formation around the follicle, which eventually stops hair growth.

Insulin Resistance & DHT

00:03:51 Beyond age and genetics, insulin resistance is the strongest driver of high DHT levels, as it is a root cause for many health issues. Insulin resistance increases the enzyme that converts testosterone to DHT and impairs the liver's ability to control testosterone, leading to more free testosterone and subsequently more DHT. Addressing insulin resistance is critical because high DHT initiates a cascade of problems leading to follicle damage.

Scalp Stimulation Therapies

00:04:45 To reverse hair loss, it is essential to fix the follicle environment. Mechanical stimulation of the scalp, such as microneedling, is highly effective in breaking down scar tissue and reactivating dormant stem cells, allowing oxygen and nutrients to reach the follicle. Additionally, red or near-infrared light therapy (wavelengths 630-850 NM) helps restore mitochondria within the follicle, providing the energy needed for hair growth.

Nutritional Support & Inhibitors

00:08:24 Rosemary oil is comparable to Rogaine in improving circulation, while also decreasing DHT, reducing inflammation, and protecting mitochondria. Key nutrients like zinc and vitamin D (10,000 IU D3 daily, 30-40 mg zinc daily) are crucial for stimulating hair stem cells and growth factors. Natural 5-alpha reductase inhibitors such as saw palmetto, pumpkin seed oil, green tea's EGCG, and peppermint oil can further help reduce DHT.

Optimal Hair-Supporting Meal

00:10:18 An optimal meal to support hair health includes liver, rich in bioavailable heme iron, zinc, copper, and selenium, which hair needs for growth. Onions provide quercetin, a powerful anti-inflammatory. Sauerkraut offers abundant vitamin C and over 600 phytonutrients, enhancing gut health and decreasing DHT. Finally, pumpkin seeds supply magnesium and trace minerals, and also act as a potent 5-alpha reductase inhibitor.