AKAHA Sparkling Serum Pack Yellow, 10g x 4This single component, fresh carbonated face mask offers the industry's highest level of concentrated carbonation. It contains carbon dioxide and 40 types of beauty ingredients. The dense, fizzy foam contains beauty ingredients such as vitamin C derivatives, placenta, and fullerene, which address skin concerns like dullness and enlarged pores. Easily achieve clear skin like you've just left a salon at home.