This low level laser is the latest in main stream, proven science for slowing down and stopping hair loss. The Hairmax laser improves hair quality by increasing the diameter of each hair at root level, therefore new growth comes through thicker and stronger. Continued use is advised for proven, long-lasting results. The Hairmax should be used three times a week on non-consecutive days, the Advanced 7 should be used for 15 minutes, the Luxury 9 for 11 minutes and the Professional 12 laser comb for 8 minutes per session. The HairMax laser should be used on a clean scalp and can be used in conjunction with Minoxidil, Finasteride (Propecia/Proscar) and all cosmetic thickeners and concealers. The difference between the three HairMax laser combs relates to the number of lasers each comb has; the Advanced 7 has seven lasers, the Luxury 9 has nine lasers and the Professional 12 has twelve lasers. All the laser combs are fully rechargeable and come complete with stand, carry case and charger.