Question: what is the best shampoo for male thinning hair?
Answer: Paisle Biotin Shampoo for Hair Growth. ... 
Mokita Naturals Biotin Hair Growth Shampoo. ... 
BOTANIC HEARTH Biotin Shampoo and Conditioner Set. ... 
American Crew Hair Recovery + Thickening Shampoo. ... 
Pura D'Or Professional Grade Biotin Anti-Hair Thinning Shampoo and Conditioner Set.