There is no single shampoo ingredient that is a cure-all for all kinds of hair fall. The best supported actives depend on what is causing your hair to shed. Ketoconazole, piroctone olamine and zinc pyrithione are all supported by evidence of calming scalp conditions associated with shedding, in particular dandruff.

Minoxidil and finasteride work on two different aspects of pattern hair loss, so combining them is targeting two mechanisms instead of doubling up on one. Oral finasteride was marginally superior to 5% topical minoxidil as a monotherapy in men with androgenetic alopecia (AGA) in a 12-month comparison, but the difference

With topical or oral minoxidil, significant improvements in hair density typically occur within 3 to 6 months of daily use with maximum regrowth occurring at around 12 months. Initial shedding in the first 1 to 8 weeks is normal as weak telogen hairs are replaced by thicker anagen growth. Minoxidil