Dark eye circles, i.e. pigmentation around the eyes, may be caused by long-term late night, skin aging and other factors, can be lightened by hot compresses, collagen injections, laser treatment. 1. Hot compresses: Hot saline compresses can promote blood circulation, enhance local metabolism and lighten melanin. 2. Collagen injection: collagen can be injected to promote blood circulation under the eyes, nourish the skin under the eyes, eliminate the shadow, and realize the role of lightening dark circles. 3. Laser treatment: Laser treatment adopts the principle of selective photothermolysis and acts directly on melanin, breaking it up and discharging it with the body’s metabolism, so as to achieve the effect of lightening dark circles under the eyes. If the symptoms of dark circles do not improve and aggravate, it is recommended to consult a regular medical institution in time, under the guidance of the doctor’s treatment.