Shiseido Unveils New Function of "Pure Retinol"

Shiseido says that keeping the stratum corneum soft is an important step in improving wrinkles.

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Today (July 13), Shiseido announced the new function of "Pure Retinol". Shiseido found that "Pure Retinol" can inhibit the progression of wrinkles from the surface to the deeper layers of the skin by softening the stratum corneum.

According to official information, Shiseido discovered through its uniquely developed "internal and external skin elasticity 3D imaging system" that when the skin moves in response to facial expressions, etc., the hardening of the stratum corneum increases the mechanical stresses exerted on the dermis, resulting in the development of a "gap between the two skin layers (stratum corneum and dermis)", which is the root cause of wrinkles. This means that keeping the stratum corneum soft is an important step in improving the appearance of wrinkles.

The study also found that "Pure Retinol" is an active ingredients with confirmed efficacy and effect on wrinkle improvement. It has a softening effect on the stratum corneum. In that case, Shiseido has discovered a new function for this ingredient, which is to prevent wrinkles from progressing from the surface to the deeper layers of the skin.

According to Shiseido, after more than 30 years of research on retinol, Shiseido has also developed a unique technology, "Shiseido Retinol TripleLock Technology," to produce pure retinol-formulated products in a stabilized manner, realizing the effect of "pure retinol" to skin with absolute certainty.

Part of the results of this research were presented at The 31st International Federation of Societies of Cosmetic Chemists (IFSCC)*5 Congress 2020 Yokohama (Oct. 21-30, 2020),” and also, at the 48th Convention of the Japanese Cosmetic Science Society (Jun. 23, 2023).