HairMax Laser Hair Growth Comb Ultima 9 Classic (FDA Cleared). Hair Loss Treatment for Men and Women, Targeted or Full Scalp Treatment to Reverse Thinning Hair while growing Denser, Fuller Hair.REGROW HAIR: nourishing and therapeutic laser light energy is directly targeted to hair follicles to reverse thinning hair, promote hair growth and hair regrowth.FDA CLEARED: HairMax laser devices are valid..