Popular as a herbal tea, the hips provide a good source of vitamin C. During WW2 in Britain, the public were encouraged to make syrups out of rose hips so that their children could get the right vitamins when other sources (such as citrus fruits) were so scarce. It also has vitamins A and B, and has been used to treat arthritis, colds and flu.
Care should be taken if preparing the plants by ones' self, as the hips contain hair in them, which can be used as a form of itching powder.
Rose hip is most popular as a tea, but also can be given as a syrup.
Rosehip syrup (Source: Atkins and Potts. Product of Atkins and Potts.)