🛡️ 100% Authentic – Japan domestic version
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Melano CC Vitamin C Brightening Essence 20ml is a concentrated serum for oily and acne-prone skin with post-acne marks, dark spots, and sun-triggered pigmentation — using pure L-Ascorbic Acid (the most active and clinically studied form of Vitamin C) housed in an aluminium tube that blocks light and air, preventing the oxidation that degrades most Vitamin C serums before they are finished. It is certified as a quasi-drug (医薬部外品) under Japanese pharmaceutical standards.
How it works: L-Ascorbic Acid inhibits tyrosinase — the enzyme that converts tyrosine into melanin — at the melanocyte level. It also reduces existing oxidised melanin, which is why consistent use brightens existing marks while preventing new ones. The aluminium tube is not cosmetic; L-Ascorbic Acid degrades rapidly when exposed to oxygen and UV, turning yellow and losing efficacy. The airtight tube maintains consistent active concentration from the first drop to the last in a way that glass droppers and open pumps cannot.
Melano CC Standard Essence vs Melano CC Premium Essence: The standard Essence (this product) contains pure L-Ascorbic Acid as the sole Vitamin C source — effective for general brightening, mild post-acne marks, and preventive daily use. The Premium Essence adds three additional Vitamin C derivatives for a multi-angle, sustained-release approach — suited for stubborn older pigmentation that has not responded to lighter treatments, or for oily skin where sebum control alongside brightening is a priority.
Known in Japan as メラノCC 薬用しみ対策 美容液 20ml.