Hair Growth: A Medical Approach to Restoration and Strengthening. Hair growth is a complex biological process that depends on scalp condition, blood supply, hormonal balance, vitamin and mineral levels, and the body's overall health. Therefore, effective treatment for hair loss requires a comprehensive, personalized medical approach rather than a single, isolated solution. In the clinic, hair growth treatment aims to: activate hair follicles, improve scalp microcirculation, prolong the active hair growth phase, reduce hair loss and thinning, and improve hair quality, strength, and density. One of the primary methods is scalp injection therapy, which allows for the precise delivery of active ingredients directly to the hair follicle area.