UNO skincare products are mostly based on sodium hyaluronate, and its toner, Skin Serum Water, is no exception. Sodium hyaluronate, also known as hyaluronic acid, provides intense hydration. In addition, Skin Serum Water also uses a variety of other moisturizers, including dipropylene glycol, glycerin, erythritol, etc., to effectively hydrate and relieve dry and tight skin. A small amount of citric acid, sodium citrate provides a slight exfoliating effect and helps to increase the skin's brightness. Recommended for combination, dry skin to meet basic hydration needs.

Skin Serum Water does not contain menthol and is relatively less irritating, but it still contains alcohol and fragrances, which may cause allergies. With the help of alcohol, the toner does not look greasy due to the rich moisturizing ingredients, and remains refreshing enough to be cold and refreshing in summer.

Uno is Shiseido's open shelf men's skin care brand, as early as 2001 into China, due to brand positioning confusion, business philosophy and other reasons, failed to make a name, has withdrawn from the Chinese market, with excellent cost performance and good product quality, UNO still has a lot of consumer groups. The 200ml toner is priced at about RMB 50, and a 180ml refill is also available.