I use minoxidil 5% as advised by a doctor to maintain my hair density. can anyone suggest a hair serum to use along with it for maintaining density.

Better head of hair: Hi. You may wish to investigate the use of medications like Bimatoprost or similar medication for hair growth stimulation with the use of a personal dermaroller to allow better penetration of the medicine and increase circulation of the scalp. Also, make sure your biotin, iron, vitamin b12 and vitamin d levels are adequate as low levels can cause thinning hair.