Shiseido discovers that ``pure retinol'' has a softening effect on the stratum corneum
Shiseido utilizes its proprietary "inner and outer skin 3D elastic imaging technology". When the stratum corneum hardens, the mechanical stress applied to the dermis increases when the skin moves due to facial expressions, etc. It was confirmed that the skin gap between the layer and the dermis) progresses. In addition, it was discovered that the active ingredient "pure retinol", which has been shown to be effective in improving wrinkles, has a softening effect on the stratum corneum, revealing that it has a new function to prevent the progression of wrinkles from the surface of the skin to the depths of the skin. made it While pure retinol has a high skin-improving effect, it is easily decomposed by oxygen, heat, light, etc., so in order to fully demonstrate its effect, it is necessary to keep it stable and deliver it to the skin reliably. In the course of over 30 years of research on retinol, the company has developed a proprietary technology called "Shiseid...