The Hair Therapy Wrap applies gentle heat for up to 20 minutes, encouraging conditioner to penetrate the hair follicles. It helps activate treatments, hot oils, or re-constructors and can also help to control a dry, flaky scalp. Simply place the Hair Therapy Wrap with the gels inside the wrap, in the microwave, for 45 seconds, let stand for 30 seconds, if more heat is needed try another 20 seconds, NO LONGER THAN 80 seconds. Apply treatment shower cap provided, then Hair Therapy Wrap. You can use the Hair Therapy Wrap while bathing, relaxing, or around the house. The Hair Therapy Wrap is a reusable, heated hair wrap.