Hada Labo Shirojyun Premium Medicated Penetrating Whitening Milk is a Japanese brightening emulsion that delivers serum‑level care to target dark spots and dullness while deeply hydrating the skin. Powered by whitening active tranexamic acid, anti‑inflammatory dipotassium glycyrrhizate, vitamin C derivative, vitamin E, and two types of hyaluronic acid, it helps suppress melanin production and soothe UV‑damaged skin for a clearer, more even tone. Best suited for normal to combination skins seeking lightweight moisture with intensive brightening benefits.