Brand from Taiwan: Double Doctor. This Brightening & Moisturizing Serum was inspired when a scientist at the Bifinity Skin Research Center discovered BifidmTM fermentation broth. It took countless experiments to create the perfect and highly concentrated ferment held the promise of perfect skin. Contains high whiteness factor and BifidmTM fermentation broth, effectively brighten and improves the skin rough. Deep moisturization, smoother skin texture & make the skin shiny. How to use: Use the serum after clean your face with makeup remover and cleanser in the morning and evening. Apply it on the face, tap to the complete absorption.