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Hair regrowth on wounded and bald skin may be possible by activating the sonic hedgehog gene, leading to hair regrowth in mice. The findings are promising but may not directly apply to humans.

Hair growth relies on mechanical forces, not just chemicals, with tissue acting like a motor. Minoxidil and finasteride help, but maintaining tissue elasticity and addressing mechanical issues are essential.

Curved hair transplantation requires specialized tools and techniques to avoid damaging hair follicles, with modified FUE being the preferred method. Proper extraction and implantation angles are crucial to prevent complications like keloids and sterile folliculitis.

A permanent hair loss solution could involve reprogramming hair follicles to resist DHT using mRNA and siRNA. However, high costs, safety concerns, and the pharmaceutical industry's preference for ongoing treatments over one-time cures are major obstacles, with finasteride and minoxidil remaining standard treatments.

A user shared their experience with hair regrowth using supplements like NAC and DIM, and briefly using minoxidil with microneedling. They reported some improvement in hair density, but the community questioned the effectiveness compared to traditional treatments like finasteride.