Comfort Shampoo Cap Rinse Free / Waterless Shampoo Caps For Hospital Patients You can also microwave the rinse free caps so they are nice and warm before use - simply pop the unopened bag into the microwave for approximately 10 - 15 seconds (and check temperature before using). Features • Special rinse-free formula solves hair washing problems • Conditioning shampoo is released when massaged • The used solution is then absorbed back into the cap
