Thank you for viewing! A set of 4 packets (0.3 x 2) of medicated beauty serum containing whitening ingredients. - Brand: HAKU - Product Name: Medicated Whitening Beauty Serum - Number of Packages: 5 packets - Ingredients: Contains whitening ingredients Received at the store. Stored in a dark place, but please refrain from purchasing if you are concerned about storage by a non-professional.