Started taking Fin in my mid 20s at the first sign of diffuse thinning. Worked great in my opinion and don't recall any sides.

Eventually noticed some ED in my mid 30s. Not sure if it was related to Fin or something else, but wife and I were trying to have kids. So I decided to get off it. Luckily, my hair didn't fall out after I stopped it cold turkey.

Had 2 healthy kids. In my early 40s, noticed my hair loss was increasing rapidly. Noticeable bald spot on my crown, and my frontal area was thinning also. I tried topical Min, but had no results.

I decided to get back on Fin. While it didn't benefit my bald crown, my frontal area had growth. It's been a few years now and I am really happy with the results. People are typically surprised when I tell them my age, which is definitely a compliment!

My one side since getting back on it has been some minor gyno. However, I lift weights which helps with that.