Finasteride carries well-documented hormonal side effects including sexual dysfunction, which some users find intolerable
Shishkova E, Zeng H, Liu F, Kwiecien NW, Hebert AS, Coon JJ
Walker TA, Jonak ZL, Worsham LMS, Ernst-Fonberg ML: Kinetic studies of the fatty acid synthetase multienzyme complex from Euglena gracilis variety bacillaris
Curr Pharm Des [Epub ahead of print] PubMed PMID: 24180395
Prevalence and clinical correlates of comorbid anxiety and panic disorders in patients with Parkinson's disease
Beyond that, it helps reduce wrinkles and fine lines, fades dark spots over time, and supports the skin's ability to heal and fade scars, making it a solid all-around addition if brighter, more even-toned skin is your goal