Sorry if this is old news. Haven’t logged on in a good while
Below is From FDA.gov
FDA has become aware of reports of adverse events associated with the use of compounded topical finasteride. There were 32 cases reported to the FDA Adverse Event Reporting System between 2019 and 2024. Absorption of finasteride through the skin into the bloodstream is expected, and the reports describe adverse events that are consistent with those reported in association with the approved oral finasteride products, such as erectile dysfunction, anxiety, suicidal ideation, brain fog, depression, fatigue, insomnia, decreased libido and testicular pain following the use of compounded topical products with finasteride alone or in combination with other active ingredients.
Most of the reports FDA has received state the adverse events continued to persist after product discontinuation. In some cases, consumers expressed they were not aware of the potential adverse events associated with the use of topical finasteride, and other patients reported that they were told by the prescribers that there was no risk of any adverse event because the product was topical.