. . . . . "Rosehip: Rosehip (Rosa canina) share with Acerola (Maldighia glabra) and Sea Buckthorn the title of champion among natural sources of vitamin C. Its other known nutrients are vitamins A, B1, B2, K, P, folic acid, and wide variety of polyphenolic compounds, including flavonoids and proanthocyanidins." .