The Hormone Behind Hair Loss
Most male pattern hair loss traces back to one hormone. Understanding it explains how the main treatments work.
What this is
DHT, or dihydrotestosterone, is the hormone most responsible for male pattern hair loss, and understanding it makes the common treatments far easier to follow. This page explains what DHT is, how it affects genetically sensitive hair follicles, and why it is the target of treatments like finasteride. The aim is to connect the biology to the options in plain terms.
Why it happens
DHT is a hormone derived from testosterone, and in men with inherited sensitivity it gradually shrinks affected hair follicles until they produce finer, shorter hairs or none at all. This is why reducing DHT is a central strategy in slowing pattern hair loss.
Common causes
Genetic sensitivity to DHT, the conversion of testosterone to DHT by an enzyme, and the gradual follicle miniaturization that results.
Possible paths forward
Understanding the role DHT plays in your hair loss; learning how DHT-targeting options like finasteride work; discussing with a provider whether those options fit you; and setting realistic expectations about what reducing DHT can and cannot do. Health Bond provides education, not diagnosis or treatment.
Questions worth asking.
These FAQs are meant to help you with common situations affecting our community - men over 40 - so when you do speak with your doctor, you have a head start. FAQs are for educational purposes only and aren't a substitute for professional medical advice.