Low-level laser therapy — also referred to as red light therapy and cold laser therapy — irradiates photons into scalp tissues. These photons are absorbed by weak cells to encourage hair growth. It's widely accepted that the procedure is safe, tolerable, and less invasive than hair transplant surgery.
Red light therapy is a safe, effective, and natural treatment option for hair loss that’s gaining popularity with professionals and the public. red light treatments have increased hair count, hair density, and hair thickness for men and women