dark circle caused by anemia ( iron deficiency ). berberis aquafolium is not giving you any result better you use iron supplement either homeopathy or allopathy.

Dark circles are the results of internal weakness of the body like anaemia and other deficiency. Applying anything externally may give either partial or no results. Take proper internal homeopathic treatment to cure it.

Before applying need to know texture of ur skin Either it may give undesirable result

Berberis may or may not be effective. The reason being 1. Homeopathy doesnt have a specific medicine for a specific condition. It treats patient as a whole so it better to understand the reason of the dark circles than to just apply something to get rid of it externally. 2. Apart from Berberis there are other number of medicines and tinctures available for the same so again the similarity is important. 3. Apart from just applying external application, a proper diet change, sleep pattern, and other changes are also equally essential. Consult a physician and start the treatment.