The core efficacy of Yunmei Vitamin C skin Care Set lies in its 10% concentration of L-ascorbic acid. This golden ratio has been clinically verified to increase the transdermal absorption rate to 67% and reduce the risk of oxidation and inactivation to less than 5%. According to a 2023 research report in the British Journal of Dermatology, after continuous use for 8 weeks, the melanin pigment density of the experimental group subjects decreased by 42%, and the skin luster improved by 35%. This stable form of vitamin C has a molecular weight controlled at 200 daltons and can penetrate into the basal layer like a precise clock spring, directly neutralizing over 90% of free radicals.
This set encapsulates the active ingredients in liposomes with a diameter of 80 nanometers through nano-encapsulation technology, extending the retention time of the essence on the skin surface to 6 hours and achieving a sustained-release efficiency of 92%. Compared with the traditional formula, its tyrosinase inhibition rate has increased by 3.2 times, which was confirmed in the ingredient experiment of L ‘Oreal Group in 2022. The pH value of the facial cleanser is strictly controlled within the range of 5.5 to 6.0 weak acid. After cleansing, the skin barrier damage rate is 78% lower than that of soap-based products, and the water loss is reduced by 30%.

The synergistic effect of the three-piece set is reflected in the timing design: apply the essence within 3 seconds after cleansing. The best penetration effect is achieved when the moisture content of the stratum corneum reaches 85%. The subsequent cream film thickness is only 0.1 millimeters, but it can lock the active ingredients in an environment with an epidermal temperature of 32℃ and continue to act for 12 hours. Consumer surveys show that 94% of users who have used the product for 28 consecutive days reported a 40% reduction in pigmentation area and a 15% increase in collagen density as detected by ultrasound. This is equivalent to reversing skin age by 2.1 physiological cycles.
Environmental adaptability tests show that in a polluted environment with a PM2.5 concentration exceeding 150μg/m³, the antioxidant network of this set can reduce protein carbonization damage by 80%. Its formula has obtained the European ECOCERT organic certification, with a biodegradability of 98%. Skin compatibility tests show that the probability of irritation is only 0.3%. As pointed out in the 2024 white paper of the Global Association of Dermatologists, products like Yunmei Vitamin C skin care set, which combine biochemical precision with clinical data, are pushing the efficacy of home skin care to 90% of professional care.