Keune Design Line Hair Extensions Shampoo Moisturizing and cleansing shampoo for hair with extensions. Keune Hair Extension Care Shampoo is color safe and is suitable for daily use. It revitalizes and smooths the hair and extensions. It will not damage the bonding of the extensions. Distribute the shampoo from the scalp to ends; gently massaging in small circles over the scalp area, cleansing both the natural hair and the extensions. Rinse thoroughly and repeat if necessary.