Dutasteride is another 5-alpha reductase inhibitor that indirectly reduces DHT levels and thickens hair. Studies have shown that Finasteride consistently decreases hair loss compared to patients who do not take the medication. By reducing levels of this enzyme, testosterone conversion to DHT is slowed, resulting in lower DHT levels. Research suggests that oral Minoxidil may prolong the growth phase of the hair follicle, allowing hair to grow longer and for an extended period. While testosterone itself is not directly responsible for hair loss, its derivative, DHT, plays a significant role for those genetically predisposed. The question of whether high testosterone causes hair loss is nuanced. DHT can contribute to hair loss in women as well, but other hormonal imbalances, such as thyroid issues or oestrogen fluctuations, can also play a role. However, it is essential to distinguish that hair loss in women often manifests differently. The amount of DHT produced and its impact on hair follicles largely depends on individual genetic sensitivity to DHT. While DHT is essential during puberty for developing secondary male characteristics, its role in adulthood often poses a challenge for those genetically predisposed to hair loss. Circulating serum levels of IGF-1 are increased with vertex balding, although this study did not look at mRNA expression at the follicle itself. In vivo, insulin stimulates both testosterone production and SHBG inhibition in normal and obese men. Further reinforcing the relationship, SHBG is downregulated by insulin in vitro, although SHBG levels do not appear to affect insulin production. Looking at your lifestyle does not mean blaming yourself for hair changes. Over time, this can contribute to a gradual decline in hair density. Hair growth depends on a steady supply of vitamins and minerals, including iron, zinc, and protein. Tracking these patterns over several months can give you a clearer picture of what is happening. You might also notice changes in hair density or texture. It can also be made from DHEA, a hormone more common in women. For instance, facial hair growth can improve while other areas become bald. Oddly enough, hair in different locations on the body can react differently to hormonal changes. The front hairline recedes, especially at the sides, forming an M shape. Male pattern baldness (MPB) has a distinctive shape.
