Care Derma Sensitive Conditioner The Care Derma Sensitive Conditioner soothes and intensively moisturizes the dry, itchy and irritated scalp. The formula is dermatologically approved and immediately counteracts itching while the hair is cared for. How to use: Apply the conditioner after washing with the Derma Sensitive Shampoo. Leave the conditioner on for 1-3 minutes and then rinse thoroughly.