Yamamoto Research BRH-C is a food supplement based on vitamin C, with Rosa Canina extract, flavonoids and rutin. Vitamin C contributes to the protection of cells from oxidative stress, the reduction of tiredness and fatigue and the normal function of the immune system. Furthermore, Rosa Canina carries out a supportive, tonic and antioxidant action.

Vitamin C is a water-soluble vitamin, essential in humans, but not in all mammals, antioxidant, which performs multiple functions in the body. The etymology of the name ascorbic acid refers to the fact that foods containing this substance are useful for preventing the onset of scurvy, a pathology linked to the lack of Vitamin C in the diet. Vitamin C performs an important antioxidant function, contributes to normal energy metabolism thus reducing tiredness and fatigue, contributes to the maintenance of the normal function of the immune system, allows the correct synthesis of collagen, ensuring the health of mucous membranes, gums and epidermis .

The dog rose, also called wild rose, hedge rose, thorn rose or maquis rose is widespread almost everywhere, in the countryside, in the hills and up to 1900 meters above sea level, on the edge of the woods, along dirt roads, all inside uncultivated fields, provided that the soil is clayey and in a sunny environment. The dog rose plant can reach up to 4 meters in height, has woody twigs sprinkled with small red thorns. Rose hips are very rich in vitamin C, 2,200 mg per 100g, while for example 100g of oranges have only 50 mg. They are also characterized by the presence of beta-carotene, which is transformed into vitamin A in the body and another antioxidant carotenoid, lycopene; there are also some B vitamins, in particular B1 and B2, vitamin E and K. They also contain folic acid, flavonoids, tannins and fatty acids (including oleic, palmitic, oleanolic, stearic and linoleic acids). The content of mineral salts is also notable, in particular iron, zinc, copper, calcium, manganese, boron, sodium, phosphorus, potassium and magnesium. Finally, rose hips are rich in water (75%), fiber (24%, with 5.1% pectin, a soluble fiber that is emollient and regulates the intestine) and protein (7.2%). Rutin is a derivative of quercetin found in rue leaves (Ruta graveolens), citrus fruits, buckwheat and other vegetables. This flavonoid boasts important biological properties, among which the vitamin P one stands out (reduces permeability and fragility of capillaries and increases their resistance), and antioxidant activity.