Shiseido introduces skincare technology for enhanced moisture retention and ingredient delivery

JAPAN – Shiseido has unveiled “Reservoir in Skin,” an advanced skincare technology designed to enhance moisture retention and optimize ingredient delivery within the skin’s outermost layer, the stratum corneum. 

This innovation tackles a core issue in skincare, the loss of natural moisturizing factors (NMFs), which are vital for skin hydration but commonly diminished by ageing, environmental stress, and routine cleansing.

The Reservoir in Skin is developed using Shiseido’s drug delivery system (DDS) technology, which enhances the deep penetration and prolonged retention of essential moisturizing ingredients, most notably pyrrolidone carboxylic acid (PCA), a natural NMF critical for maintaining optimal skin hydration.

Shiseido’s breakthrough overcomes the challenge of NMF loss by ensuring these key hydrating ingredients penetrate and stay within the skin for longer-lasting moisture.

The company’s research highlights that this technology not only boosts moisture levels but also improves skin texture and smoothness, offering a long-lasting hydration effect. 

Shiseido spokesperson stated, “In the future, the findings of this study will be utilized to provide solutions that promote healthy and beautiful skin, for example, by enhancing skin condition through harnessing the natural power of the skin and its components.” 

By focusing on ingredient retention rather than mere absorption, Shiseido aims to redefine skincare efficacy, ensuring that beneficial compounds remain active where they are needed most.

Recently, Shiseido developed 4MSK technology, which enhances the penetration of brightening ingredients into the skin, reducing dark spots, freckles and pigmentation.

The 4MSK technology liquefies 4-methoxy salicylic acid potassium salt, allowing the product to stay fluid upon application and penetrate the skin twice as effectively as older formulas.

Shiseido developed absorption technology by incorporating the concept of “ionic liquids,” a chemical concept in which solid ingredients can be converted into liquids when combined with specific substances.

A study by Shiseido indicates that the technology effectively suppresses melanogenesis, which leads to dark spots, while promoting the exfoliation of melanin deposits to help fade existing spots more quickly.

The technology could open new possibilities for future cosmetic formulations, offering a solution that balances the structural stability of active ingredients and their ability to permeate the skin.

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