Mid-range grade. According to the inquiry of official website of New Oxygen Network, the skin care products of "Qing Xue Shi Yan" are developed for middle-class consumers, and the price is 100 yuan to 500 yuan, which belongs to the mid-range skin care products. Qing Xue Shi Yan is a product of Guangzhou Qing Xue Shi Yan Cosmetics Co., Ltd., which can effectively replenish moisture to the skin and fade fine lines.