In July 2011 I learned of this No-Rinse Shower Cap from a hospital while I was visiting my 90 year old aunt. She hadn't been taking care of herself (including bathing/showering) due to dementia. She had developed "Cradle Cap", a thick & yellowish crusty scale building up on her scalp. It's true...No-Rinse...simply warm in the microwave for 10-15 seconds (not necessary, but warming makes for a spa-like treatment for your loved-one), then apply the cap, which contains the no-rinse shampoo & conditioner, and massage into scalp...Remove after 15 minutes, towel-dry and brush/comb. It took at about 6 treatments to remove the significant crusty buildup for my Aunt's condition. I bought a case so the live-in Home Aid could continue to wash my Aunt's hair, since she can only get bedside washing at this time. Smart purchase! (Posted on 8/31/11)