Oranges are rich in calcium, fibre, vitamin C, and other nutrients to boost immunity and skin quality. However, research says that orange peels contain more nutrients than the fruit itself! Its peel has anti-bacterial and anti-microbial properties which are great ingredients to treat blackheads and acne. Peels also help to improve skin complexion and quality. Orange peel powder mixed with milk or curd is great natural bleach and helps to remove tan.