Inhibition of Skin 5α-Reductase by Oral Contraceptive Progestins In Vitro

The conversation concludes that finasteride, a 5α-Reductase inhibitor used for hair loss, does not impair cognition either short-term or long-term. It suggests "brain fog" is not caused by the medication.

FCE 28260 (PNU 156765), an under-explored 5α-reductase inhibitor, showcases promising results in research by Giudici et al., outperforming well-known treatments like Finasteride in reducing the conversion of testosterone to DHT. Its superior efficacy, demonstrated through lower IC50 values in both natural and human recombinant enzyme studies, suggests it could offer more effective management of DHT-related conditions. Additionally, its lower molecular weight hints at better potential for topical application, potentially offering advantages in treating conditions such as androgenic alopecia. Despite its potential, it has not advanced in development, possibly due to financial limitations, leaving its therapeutic prospects and side effect profile largely unexplored.

Rosemary Oil may inhibit the activity of 5α-Reductase, potentially promoting hair growth. Specific treatments discussed include Minoxidil, Finasteride, and RU58841.

The conversation discusses natural DHT blockers like rice bran oil, which may reduce 5α-reductase activity similarly to Minoxidil and Dutasteride. One user argues that finasteride is more reliable and effective than natural alternatives.

A 19-year-old with rapid hair loss since 16 is considering a hair transplant but refuses to take finasteride or any 5α-Reductase inhibitors. They are currently using minoxidil, tretinoin, and microneedling with a Derminator 2, and only want hair until age 27.

How Finasteride and Dutasteride help reduce hair loss by reducing the amount of DHT in scalp areas, as well as discussing factors such as sensitivity to DHT, 5α-reductase expression in different parts of the hair follicle, and scalp tension.