The pulp of rosehips contains up to 14% vitamin C (ascorbic acid), which is an order of magnitude higher than in currants. Its content is highest in mature fruits growing in the middle lane and in the north. Fruits contain B vitamins: B1 (thiamine), which determines the processes of growth and development, supports the optimal functioning of the heart, nervous, digestive system; B2 (riboflavin), important for the synthesis of red blood cells, antibodies, growth, reproductive functions, optimal thyroid function, healthy hair, skin, nails, and oral cavity; B9 (folic acid). The intake of this vitamin is necessary for the production of sufficient sperm. Deficiency causes anemia, disorders of the circulatory and immune systems of the body.