iGrow hair laser is a treatment for hair loss with Low Level Laser Therapy (LLLT). LLLT refers to therapy level laser or light therapy below a specific threshold and within a certain wavelength. Multiple clinical studies have proven the effectiveness of LLLT in promoting hair growth in men as well as women affected by androgenetic alopecia. The exact mechanism is not fully understood, but is hypothesized that the LLLT triggers enhanced cellular activity. iGrow is recommended for use 3-4x a week, and will show results within 4-6 months of use.