The Hair Growth System (Model: KN-8000A) is a prescription use device intended for the promotion of hair growth in females with androgenic alopecia who have Ludwig-Savin Classifications I- II, and in males with androgenic alopecia who have Norwood Hamilton Classifications IIa-V; and both genders having Fitzpatrick Classification of Skin Phototypes I to IV

Low-Level Laser Therapy (LLLT) can alter the rheological properties of local blood flow, promoting angiogenesis.

It can also reduce the viscosity of whole blood, enhance the deformability of red blood cells, adjust the body's immune status, and improve blood circulation and microcirculation in the balding areas, playing a role in promoting hair growth.