HairMax ACCELER8 Hair Booster + Nutrients helps transform your hair into fuller-looking locks. And with this Auto-Delivery plan, a new shipment arrives approximately every 60 days for two years. How do I use it: Towel dry hair. Separate and part the hair to spray ACCELER8 Hair Booster onto the scalp. Gently massage in for two minutes. Do not rinse. For best results, immediately use a HairMax laser device for the appropriate time, as light will activate the product for maximum benefits. From HairMax.