I have stored my subscription purchase in a dark place. Unused, arrived in April 2025(^^) Ampoule is a doctor's cosmetic brand for beautiful whitening skincare! This is a night-use spot concentrate serum that contains the highest concentration of hydroquinone. Hydroquinone works in the stratum corneum while you sleep, and triple retinol (retinol, retinyl palmitate, hydroxypinacolone retinoate) further refines the skin to a beautiful, even tone. Recommended for those who have blemishes that they can't live without concealer. Contents: 11ml Retail price: 12,100 yen