Hair O Gain serumHAIR O GRAIN SERUM Treatment Process & Expectations How it Works: Exosomes derived from stem cells are delivered directly to the hair follicles (often via injection or microneedling) to stimulate dormant follicles, promote new growth, and improve hair thickness. Timeline: Improvements in density and thickness are often seen within a few weeks, with new growth becoming more noticeable after 3 6 weeks. Maximum Results: Typically, full results are