KeraCare Gentle Cleansing Shampoo. Gentle Cleansing Shampoo is a gentle yet effective sulfate- and amide-free formula that removes residue from the hair, and eliminates dry, flaky skin and oily build-up from the scalp, Nourishing to your natural hair, it adds the lightest touch of conditioning to commercial hair for body, shine, and tangle-free combability. Formulated with the phyto extract, calendula, it moisturizes hair and soothes the scalp.