This Quasi-drug Whitening Serum is a result of thorough research into the specific damage conditions that cause skin blemishes. It takes a fundamental approach to the cause of skin blemishes by delivering two types of whitening active ingredients deep into the skin. These ingredients suppress melanin production and prevent spots and freckles. The unique formulation of HAKU ensures excellent skin blending. This medicated whitening serum spreads smoothly and melts into the skin, leaving it with a beautiful luminous shine. It has been the No.1 selling product in the whitening essence market for 18 consecutive years from Jan 2005 to Dec 2022.