The effect of Panax notoginseng powder can be achieved in 3-6 months, but the specific effect time varies according to the formation time of pigmentation and personal constitution. Pigmentation mainly refers to the pigmentation disorder caused by the hyper-secretory function of melanocytes in the skin and the increase of melanin synthesis, which can be achieved by accelerating the metabolism of the skin surface and promoting the metabolic absorption of pigment. Chinese medicine believes that spots are caused by blood and qi stasis, and Panax ginseng powder has certain effect of activating blood and removing stasis, which can accelerate blood circulation and promote metabolism, so it has certain effect of light spots. If the metabolism of the body is fast and the spot formation time is short, most of the spots can be obviously faded in about 3 months after taking Panax ginseng powder. If the patient is older, the metabolism of the body is slow or the spots have been formed for a long time, most of them can only be effective in about half a year, and may not even be removed. It should be noted that the effect of taking Panax ginseng powder alone will not be obvious, so it is recommended to cooperate with daily sun protection, local topical medicine or laser treatment. Panax ginseng powder should be prohibited during menstruation or in case of thrombocytopenia and other bleeding disorders.