Cantu Deep Conditioning Reusable Thermal Cap Treatment It's time to take your hair care to the next level with the Cantu Deep Conditioning Reusable Thermal Cap Treatment. This thermal cap is designed to promote healthy hair growth for our natural and curly hair. This thermal hood can be easily heated in the microwave and provides pleasant warmth in seconds. It is the perfect addition to your deep hair treatment. We've even included two additional disposable caps to meet your hair care needs. How to use: Wash your hair and towel dry it to avoid dripping. in the microwave at 30 second intervals. Total not exceeding 90 seconds. Cover the hair with the disposable plastic cap, then cover it with the thermal cap and leave it on the hair for up to 15 minutes.