Scalp massage is a beneficial stimulant to blood circulation. In the scheme of things, if your scalp biology is saturated with toxic anti hair-growing factors that overwhelm the resistance of your particular follicle/hair strength, the anti-hair growth factors will win out. IMO persons, in particular men whose hair is slowly losing its optimal health, need to counteract their biology foremost.
Good grooming, stimulating regimens will help. For example, on a side note, If you have oily scalp, oily hair, less/no hair conditioner is better until you normalize the oiliness. Most conditions will only weigh your hair down. Tips of hair is usually sufficient.
I have my favorite which lift hair off scalp.
Finally one must supplement strongly to normalize internal hair growing biology.
Stimulating conjunctive regimens will help.