The reason of dark circle under your eyes may be congestion of blood capillary around your eyes. Frequently stay up late, emotional instability, eyes fatigue and aging will induce the circulation of blood slowing down, the erythrocyte (red cell)'s oxygen supply reduce, the carbon dioxide and metabolic waste accumulation, the blood around your eyes lack of oxygen, the blood congest and pigmentation of eyes blood will be happen. However, any essential oil would not be good to apply on your eyes. The rosehip oil's main function is to diminish inflammation and sterilization. The skin around the eyes is very subtle and sensitive, the essential oil will form fat granule and put overload to the skin around eyes. If you really want something to use, special eye cream will be recommended. You may use make up to hide black eye, but the skin care product must be the one without stimulation and natural. The real pure plant and no additives skin cream is packed in sterile tiny packages. You need to be prudent to choose the products. Cold compresses and hot packs are useful for you to cure your eyes in a physical way at first; it will help your eyes blood vessel contract, then blood circulation will increase to make your eye recover. You would better not to use any oil to form fat granule and put overload to the skin around eyes. The care of eyes will not be the oil or something apply to your eyes, but a good life rule, and if you insist it, the effect will be appear in a long run.