The Real Reason Your Hair Isn't Growing Back

Summary

The primary obstacle to hair regrowth, particularly in common pattern hair loss, isn't dead follicles but rather a physical barrier of scar tissue preventing dormant stem cells from reactivating. This scar tissue is often caused by inflammation, which obstructs blood flow and nutrient delivery to the hair follicles, with biopsies showing up to 70% of individuals with pattern hair loss exhibiting this issue. While DHT is often cited as a cause, the deeper root is insulin resistance. Hair follicles require glucose for energy, and insulin resistance hinders glucose absorption. It also constricts blood supply, increases inflammation, and thus worsens scar tissue. To address this, a two-pronged approach is recommended: first, correcting insulin resistance through low-carb or ketogenic diets and intermittent fasting to induce autophagy, which can also wake up stem cells. Second, breaking down scar tissue with microneedling, creating micro-injuries that stimulate healing and collagen breakdown. This should be followed by topical remedies like melatonin, or potentially rosemary oil, saw palmetto, or pumpkin seed oil, to enhance hair growth. Stress, which exacerbates insulin resistance, should also be managed through exercise and sleep. It's important to note that DHT itself has benefits and should be normalized, not excessively lowered, to avoid mood disorders.