Dr Q K Secret Caviar Serum 50 mlDr Q K Secret Caviar Serum 50 ml. Dr Q K Secret Caviar Serum is a potent serum that targets dark spots and uneven skin tone. The advanced formula serum interrupts the pigmentation cycle to prevent age spots and promote a more radiant complexion. Dr Q K Secret Caviar Serum helps existing spots fade away and enhances the firmness and hydration of the skin, and provides antioxidant protection. The serum is infused with caviar extract which is rich in