Rohto Hada Labo Shirojyun is their flagship moisturizing series.
The premium version of Shirojun "Shirojun Pemium" contains what is called W-Tranexamic Acid, which may help in suppressing the generation of melanin and preventing mottled and freckled skin.
Tranexamic Acid also could protect your skin from UV damage.
After washing face, apply on your skin.
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