1-3 months or so. According to the information of Qinghe Bai Yue whitening products, it takes about 1-3 months for Zhongyantang Qinghe Bai Yue to whiten successfully. Although Qinghe Bai Yue is a very good whitening candy, it is not a quick success. There will be no immediate product. If a product makes such a slogan, everyone should pay attention to it. Either it is false propaganda or it adds harmful or even toxic ingredients, which will endanger health. As for how long it will take for Qinghe Bai Yue to take effect, it depends on the individual, and it will take about 1-3 months to have a more obvious effect. Qinghe Bai Yue is a whitening product aimed at Asians. Asians, especially China people, actually don't have dark skin. Most of them are dull and yellow, and they lose their luster due to careless maintenance, so they look black. This Qinghe Bai Yue combines the characteristics of China people's skin, and adds three precious nutrients: fish collagen, bird's nest powder and Geely powder, which can help the skin to play an antioxidant role, reduce the precipitation of melanin, moisturize the skin, and make the skin shiny, thus making the skin look transparent and fair.