Finasteride is a medication commonly used to treat hair loss, particularly male pattern baldness. It targets a key factor in hair loss: a hormone called dihydrotestosterone (DHT). DHT is a derivative of testosterone, a hormone found in both men and women. It contributes to hair loss by shrinking hair follicles over time, leading to thinner hair and eventually bald spots.
Finasteride works by reducing the levels of DHT in the scalp. It does this by blocking the enzyme that converts testosterone into DHT. With lower levels of DHT, hair follicles are less likely to shrink and can continue to produce healthy hair. This process can slow down or even stop hair loss, and in some cases, it may stimulate new hair growth.
The medication is a type of 5-alpha reductase inhibitor. By inhibiting this enzyme, finasteride effectively lowers DHT levels, helping to maintain the size and function of hair follicles. This approach is most effective when started in the early stages of hair loss and is generally recommended for those with a genetic predisposition to baldness.
Frequently asked questions about hair loss
How does finasteride help with hair loss?
Finasteride helps by lowering DHT levels in the scalp. This reduction prevents hair follicles from shrinking, which can halt or slow down hair loss and sometimes stimulate regrowth of hair. It’s most effective in the early stages of hair loss and works best in individuals with a genetic predisposition to baldness.
Are there any side effects of taking finasteride for hair loss?
Like any medication, finasteride can have side effects. Common ones include a reduced libido, erectile dysfunction, and decreased ejaculate volume. Some people might also experience breast tenderness or enlargement. Most side effects are rare and tend to lessen over time. However, if you experience persistent or troubling symptoms, it’s important to discuss them with your doctor.
How long does it take to see results from finasteride for hair loss?
Patience is key when taking finasteride. It typically takes about 3 to 6 months before you start to notice any improvement in hair growth. Full results can take up to a year or more. During this time, you may experience some shedding of old hairs as new ones begin to grow.
