Vitamin Sea SerumVitamin Sea Serum This Product Is: a vitamin filled facial serum Good For: all skin types, especially sensitive and oily Why We Love It: Osea Vitamin Sea Serum works to give you a youthful, radiant glow thanks to ferulic acid, rich in vitamins A, C and E, which binds moisture to the skin. Seven organic seaweeds are infused to help reduce the appearance of fine lines, and moisture restoring hyaluronic acid helps to plump skin.