Graham Webb Silk Repair Thermacore Therapy (Part A & B) is an advanced recovery treatment. When the two parts are mixed together, the formula becomes an incredible, reconstructive foam. Perfect for all hair types and especially beneficial after chemical treatments or as a weekly deep conditioning treatment. This organic and naturally active rinse-out treatment instantly detects and treats hair's most damaged areas, providing unsurpassed strength, body, and shine. If your hair stretches and stretches like a piece of gum, then it needs protein. To test, hold a strand of wet hair in between your two thumbs and gently pulling on both ends. Healthy hair should be able to stretch half it's length and spring back with no problems. If your hair lacks protein, then Graham Webb Silk Repair Thermacore Therapy Advanced Recovery Treatment is the answer. This is a treatment where part A and part B are mixed together to create a rich, creamy foam that is applied to the head, covered with a bag and placed under the dryer for 15 minutes. You may also use a hand-held blow dryer for 15 minutes. Once the treatment sits for 15 minutes, rinse off and towel dry the hair.