Chanel Le Blanc Serum HLCS Medicated Brightening Serum 5ml x 4 Received in-store and online this year! I also love it and have purchased and used the full-size product several times! New, unused A medicated brightening serum that suppresses melanin production, prevents spots and freckles, and brings a healthy, radiant glow. The fresh and watery texture melts into the skin, providing a translucent, hydrated complexion. For travel use for those who use it regularly, or for those who want to try it♪