The Silent Culprit: DHT
Hair loss can be a touchy subject, bringing with it a myriad of emotions and can effect self-esteem. However, understanding its root causes can pave the way for better treatment and prevention. One of the primary causes of hair loss is Dihydrotestosterone (DHT). But what is DHT and why does it play such a significant role in hair loss?
DHT Demystified
DHT is a hormone derived from testosterone, present in both men and women. It’s produced when testosterone interacts with the enzyme 5-alpha reductase. While DHT is beneficial during our early developmental years, playing a pivotal role in the formation of male primary and secondary sexual characteristics, in adulthood, it can become the antagonist in the narrative of our hair growth.
The DHT and Hair Loss Connection
So how does DHT affect our hair?
Follicle Miniaturisation
DHT binds to androgen receptors in hair follicles, especially those in the hairline and crown in men and thinning areas in women. Over time, this results in the shrinkage of the hair follicle, making it harder for it to produce healthy hair.
Shortened Growth Phase
Our hair goes through different stages, including a growth phase (anagen) and a resting phase (telogen). Excess DHT can shorten the anagen phase, resulting in hair not growing to its full length before shedding.
Increased Hair Shedding
High levels of DHT can accelerate the hair’s transition from the anagen phase to the telogen phase, causing increased hair shedding.
But Why Does DHT Affect Some and Not Others?
Simply put, genetics. Those genetically predisposed to hair loss have hair follicles that are more sensitive to DHT. This means that while many people produce DHT, not everyone will experience hair loss due to its presence. Lifestyle, stress levels, and illness can also
Can You Reduce the Impact of DHT?
While you cannot completely stop your body from producing DHT, you can support your scalp and follicles in ways that help reduce its impact. Approaches often focus on limiting DHT activity at the follicle level, improving scalp circulation, and maintaining a healthy hair growth environment.
Botanical ingredients such as saw palmetto are commonly used in hair care for their role in supporting a balanced scalp environment. Maintaining overall scalp health, managing stress, and ensuring adequate nutrition also contribute to stronger follicle function over time.
Early action is key. Once follicles have significantly miniaturised, regrowth becomes more challenging. Supporting your scalp before visible thinning becomes advanced gives you the best chance of maintaining density and healthier-looking hair.
While DHT plays a vital role in hair loss, it’s essential to remember that other factors like stress, nutrition, and other hormonal imbalances can also influence your hair’s health. It’s always a good idea to consult with your GP to understand the exact cause of your hair woes. With the right knowledge and treatment, you can take proactive steps toward preserving and even rejuvenating your locks!
Frequently Asked Questions
What is DHT? DHT, or dihydrotestosterone, is a hormone derived from testosterone. It is present in both men and women and plays an important role in development earlier in life.
How is DHT linked to hair loss? In people who are genetically sensitive, DHT can bind to receptors in scalp hair follicles and cause them to gradually shrink. Over time, this weakens hair growth and can lead to thinning or hair loss.
What is follicle miniaturisation? Follicle miniaturisation is the process where hair follicles become smaller due to ongoing DHT exposure. As follicles shrink, they produce finer, weaker hairs and may eventually stop producing hair altogether.
Why does DHT cause hair loss in some people but not others? Genetics determine how sensitive your hair follicles are to DHT. People who are genetically predisposed to hair loss have follicles that react more strongly to DHT, even at normal levels. Lifestyle, stress, and illness can also influence how significantly DHT affects the hair growth cycle.
How does DHT affect the hair growth cycle? Excess DHT can shorten the anagen or active growth phase, meaning hair does not reach its full length before shedding. It can also accelerate the transition into the telogen or resting phase, resulting in increased shedding and progressively weaker regrowth over time.
Can you reduce the impact of DHT on your scalp? While you cannot stop your body from producing DHT entirely, there are ways to support your scalp and limit its impact at the follicle level. Botanical ingredients such as saw palmetto are commonly used in hair care to help maintain a balanced scalp environment. Managing stress, maintaining good nutrition, and acting early before significant miniaturisation occurs all contribute to better long-term outcomes for hair density and health.
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