Mass fraction of moisture in the dry extract is not more than 10%.
The mass fraction of moisture in the thick extract is not more than 50%.
Mass fraction of insoluble substances in water not more than 5%.
Mass fraction of tannins in the dry extract (in terms of tannin), not less than 20.0%
Mass fraction of tannins in the dry extract (in terms of tannin), not less than 10.0%
Perennial evergreen shrub, with strongly astringent and bitter-tasting leaves. It has anti-inflammatory, antiseptic, diuretic and other medicinal properties. The flowers are small, overturned, whitish-pink, collected on tops in short brushes. It blooms in May – June. Fruits - from far away noticeable red mealy berries. Berries are readily eaten by birds, and seeds that are not digested in the stomach of birds are spread over long distances and, once in the ground, germinate. Bearberry is found in the North of the forest zone of the European part of Russia, Siberia, the Urals, the far East and the Caucasus mountains. Prefers pine forests with dry sandy soil.
Up to 35% of tannins of the pyrogallic group, acids (gallic, ellagic, quinic, formic, and ursolic), arbutin, methylarbutin, hydroquinone, ella-gotanin, gallotanine, coloring matter, lipol, hyperoside, quercetin, izquercetin, vitamin, are found in the leaves of bearberry and essential oil. Bearberry is used in diseases of the kidneys and bladder as an effective diuretic, disinfectant and anti-inflammatory agent. It is prescribed for acute and chronic pyelonephritis, cystitis, kidney tuberculosis, and for urethritis. The action of bearberry manifests itself in alkaline urine. Bearberry is part of the diuretic fees № 1 and 2. In folk medicine, it is sometimes prescribed for diarrhea (due to astringent properties), as well as cholecystitis and gout.