In a study of 30 men with male pattern hair loss, taking a 5 mg minoxidil pill once a day for 6 months led to an average gain of about 35 new hairs per square centimeter on the thinning area at the top of the head — an increase of roughly 19%.
Source: Panchaprateep & Lueangarun (2020), as cited in Penha et al., "Oral Minoxidil vs Topical Minoxidil for Male Androgenetic Alopecia," JAMA Dermatology (2024)










