The #1 Missing Factor in Hair Loss
In a Nutshell
Scar tissue and calcification—driven by insulin resistance—form a physical barrier that keeps hair stem cells dormant even when typical treatments are applied. Addressing insulin resistance through a low-carb diet and intermittent fasting, combined with microneedling to break down scar tissue, allows remedies like topical melatonin, rosemary oil, and saw palmetto to reach the follicles and restore growth. Normalizing insulin also prevents excessive DHT suppression, preserving its benefits for mood and libido.
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The number one factor in pattern hair loss is a physical barrier on the top of the head: scar tissue. This barrier prevents hair from growing even when remedies are applied. Hair follicles are not dead; stem cells remain alive but dormant inside them.
In 2024, researchers from the University of Virginia discovered that stem cells responsible for hair growth remain completely alive even in completely bald individuals. These stem cells stay dormant because scar tissue blocks signals that would normally wake them up.
Inflammation enters tiny blood vessels around the follicles and creates calcification. This obstructs blood flow, reducing oxygen and nutrient delivery to the follicle. Biopsies of people with pattern hair loss show that up to 70% have this calcification and scar tissue situation.
This explains why remedies such as rosemary oil often fail: the barrier prevents them from reaching the follicle.
DHT (dihydrotestosterone) is commonly cited as a cause of pattern hair loss, but insulin resistance is a deeper root cause. Insulin resistance occurs when the pancreas produces high levels of insulin and cells develop resistance to it.
Hair follicles depend exclusively on glucose for energy and cannot use ketones or fat. Consuming more glucose and carbs worsens insulin resistance, preventing proper glucose absorption.
Insulin resistance produces three additional effects on hair follicles:
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