Minoxidil Stimulates Elastin Expression in Aortic Smooth Muscle Cells

Minoxidil was applied to a single miniaturized hair follicle over four months, resulting in less miniaturization but not yet terminal growth. The user used a 5% minoxidil solution, specifically the Regaine brand, and observed changes using a handheld WiFi microscope.

Minoxidil may inhibit androgen receptors and affect hormonal pathways, potentially explaining its effectiveness in treating androgenetic alopecia (AGA). Users discuss its varying effectiveness on scalp versus facial hair and note fewer side effects with topical use compared to oral.

Minoxidil's effectiveness varies due to genetic differences in the SULT1A1 enzyme, affecting how well it converts to its active form, minoxidil sulfate. Hyper-responders may experience rapid hair growth and increased side effects, such as pericardial effusion, even at low doses.

A 24-year-old male experienced an increase in estradiol levels and symptoms like gynecomastia and excessive sweating after using Minoxidil for hair loss. His estradiol levels decreased after he stopped using Minoxidil.

Minoxidil increases blood supply to the scalp, strengthening dormant follicles and extending the growth phase, but may increase scalp activity that can be countered with DHT blockers. Women experiencing side effects from finasteride or dutasteride for hair loss might consider alternatives like estrogen, especially if on birth control.

The conversation discusses the lack of in vivo studies on the effects of minoxidil and finasteride on human collagen and elastin after a year of use. It highlights the potential benefits of such research for understanding side effects and improving sales, despite challenges like cost and competition.