What is the < VC series? > It is said that the turnover cycle in the teenage years is about 20 days, but as you approach your 30s ~ 40s, it becomes [about 2~2.5 times]. The key point is to create skin that is not easily damaged. The VC series focuses on the effects of vitamin C and contains vitamins A, C, and E in a well-balanced manner. This product approaches the generation of active oxygen and melanin production inside the skin to aim for skin that is less likely to cause skin problems even when exposed to external stimuli. "VC200"*1 penetrates the skin steadily*2 and firmly blocks skin stress The "VC200"*1 penetrates the skin steadily with a smooth feel*2. Vitamin A*3, Vitamin E*4, and 4 types of Japanese and Chinese plant extracts*5 balance the skin's moisture while leading to trouble-free skin conditions. The moisturizing ingredient "squalane" leads to moist and moisturized skin while blocking the stress of dry adult skin. Additive-free formula that does not burden your skin (fragrance-free, coloring-free, paraben-free, alcohol-free, synthetic surfactant-free, mineral oil-free) Non-comedogenic tested *1 Moisturizing ingredient (2Na isostearyl ascorbyl phosphate)　　 *2 Penetration to the stratum corneum *3 Skin conditioning ingredient (tocopheryl retinoate) *4 Skin conditioning ingredient (tocopherol) *5 Skin-conditioning ingredients (Hypericum flower/leaf/stem extract, Yellowfin root extract, Yellowfin bark extract, Peppermint leaf extract) ===================== VC200 is a vitamin C derivative called isostearyl ascorbyl phosphate 2Na. "Isostearyl ascorbyl phosphate 2Na", also known as APIS, is It is also regarded as a vitamin C derivative after the highly permeable vitamin C derivative APPS (Aprecier). APPS requires two types of enzymes, and APIS can reduce vitamin C with only one type of phosphatase. It has high vitamin C reducing and supplying power. =====================