DHT, or dihydrotestosterone, is a male sex hormone that plays a significant role in hair loss. While it stimulates hair growth in some follicles, high levels of DHT can cause miniaturization of hair follicles, leading to thinning hair and ultimately, male pattern baldness (androgenic alopecia) in genetically predisposed individuals. This occurs because high DHT levels shrink hair follicles and shorten the hair growth cycle, resulting in thinner, more brittle hair. This effect is not limited to men; women can also experience hair loss due to high DHT.
How DHT Affects Hair Follicles
- Miniaturization: High DHT levels bind to receptors in the scalp, causing hair follicles to shrink. This leads to the production of shorter, finer, and weaker hairs.
- Shortened Growth Cycle: The hair growth cycle is significantly shortened, meaning hair doesn't have the time to grow to its full length before it falls out.
- Genetic Predisposition: The impact of DHT on hair follicles is significantly influenced by genetics. Some individuals are more susceptible to DHT's effects than others.
DHT and Hair Loss Conditions
- Male Pattern Baldness (Androgenic Alopecia): The most common condition linked to high DHT, affecting many men.
- Female Pattern Hair Loss: Women can also experience hair thinning and loss due to elevated DHT levels, though the pattern is often different from male pattern baldness. It frequently manifests as diffuse thinning.
- Polycystic Ovary Syndrome (PCOS): High DHT levels are often associated with PCOS, which can contribute to hair loss in women.
Managing DHT's Effects on Hair
While there's no cure for DHT-related hair loss, several treatments aim to manage or mitigate its effects. These often involve DHT blockers, medications, or other therapies. These options are best discussed with a dermatologist or healthcare professional.
