Whitening Hidroquin Sesderma 10 ampules 2 ml. Pigmentation Rebels. Additional Information. directions: Clarifies etilogía different spots (solar, pregnancy, melasma, aging or freckles) and prevents the emergence of new hyperpigmentation. composition Arbutin + L-Retinol ferulic acid + ascorbic acid + + + glycyrrhetinic acid Tranexamic Acid + phloretin properties: Evens out skin tone and lightens stains to inhibit and reduce the activity of tyrosinase (an enzyme involved in melanin formation chain), regulating the activity of melanocytes altered (hyperactivity), inhibit the transfer of melanosomes from melanocytes to keratinocytes, has an anti-radical and exfoliating the skin and prevent skin inflammation that can lead to the formation of new hyperpigmentation. WHITENING HIDROQUIN AMPOULE: How to use: Apply a blister 1 or 2 times a week over the treatment area prior to the usual treatment. Massage the product gently until completely absorbed.