TLDR Minoxidil 1% and 2% best promote hair growth and may prevent hair loss.
This study investigated the effectiveness of different concentrations of topical minoxidil in promoting hair growth in men with male pattern baldness. Patients were treated with 0.01%, 0.1%, 1%, or 2% minoxidil or placebo for 6 months. The study found that 1% and 2% minoxidil solutions were the most effective in producing clinically perceptible hair growth, while 0.1% was the lowest efficacious concentration. The study also suggested that prophylactic use of minoxidil may be important in preventing hair loss.
138 citations,
August 1985 in “Journal of The American Academy of Dermatology” Minoxidil promotes hair growth in male pattern baldness.
55 citations,
February 1985 in “Archives of Dermatology” Using minoxidil on the scalp can help grow hair for people with hereditary baldness.
August 2014 in “Journal of drug discovery and therapeutics” Topical minoxidil and oral finasteride can help regrow hair in androgenetic alopecia.
82 citations,
March 1994 in “Archives of Dermatology” 2% topical minoxidil effectively treats female hair loss with minimal side effects.
58 citations,
October 1993 in “International Journal of Dermatology” Minoxidil helps hair growth and reduces shedding in women.
43 citations,
November 1992 in “International Journal of Dermatology” Minoxidil 2% effectively treats female hair loss, promoting growth and density.
11 citations,
April 1990 in “Australasian Journal of Dermatology” Minoxidil modestly increases hair growth in men with early baldness and is safe to use.
