Only 27% of men who used Propecia (finasteride) said it was “very” effective. Finasteride is a 5-alpha reductase inhibitor used to treat prostate enlargement symptoms and baldness. Finasteride has 2 trade names: Propecia for baldness and Proscar for BPH.

Over-the-counter minoxidil (Rogaine) is applied directly to the scalp and is the only hair regrowth drug approved for use by women. Just 4% of respondents said it was very effective, with 43% of users saying it was not effective at all.

Only 2% of men surveyed underwent hair transplants; but of these, 49% were either very or completely satisfied with the results of their surgery, the poll shows.