The rotator cuff is the name for the tendons that surround the shoulder joint. The rotator cuff is actually a group of four muscles and their tendons that wraps around the front, back, and top of the shoulder joint. The proper name is: rotator cuff.
Natural skin care uses topical creams and lotions made of ingredients available in nature. Much of the recent literature reviews plant-derived ingredients, which may include herbs, roots, flowers and essential oils, but natural substances in skin care products include animal-derived products such as beeswax, and minerals.
1 Since skin is the largest organ of the body, it makes sense to take care of it by using natural products. Using goat milk soap protects the skin from the outside in.  Milk is loaded with vitamins that are known to be beneficial to the skin.