Do Scalp Massages Promote Hair Growth?

YES.  Studies say that a massage for hair loss performed by a trained massage therapist  or yourself will increase blood flow to the hair follicles, condition the scalp, and enhance the strength of the roots. It will also aid relaxation and reduce feelings of stress. Kneading during a massage warms the skin and opens up the blood vessels, thereby increasing blood flow. Increased blood flow to the hair follicle will result in increased nutrient intake. All hair follicles need an adequate supply of nutrients in order to grow. Rubbing during a massage promotes relaxation and aids in stress reduction. Reduced levels of stress hormones allow the body to function with increased efficiency and this, in turn, enhances the ability of the hair follicles to grow hair.

The use of nourishing oils, such as rosemary mint oil, tree oil, oils containing turmeric,  during scalp massage for hair loss is thought to condition the scalp, hair root, and hair shaft. It reduces conditions that can interrupt the process of hair growth, including dandruff and dry skin. Regular massage, atleast twice a day for 1-2 minutes, for hair loss involving oils can reduce the chances of the hair strands becoming brittle, split, and broken.

Source: Scalp massages and hair growth