The Hourglass Nº 28 Primer Serum is a primer and serum in one, infused with 28 beneficial ingredients to nourish and prepare your skin for a flawless makeup application. The silky, lightweight oil blend glides on, absorbs to prime the skin and hydrates the complexion. Contains 28 beneficial ingredients to nourish the complexion: 14 essential oils, 10 lipid-rich plant oils and 4 nourishing vitamins. The luxurious formulation can also be used as a serum at night, or on hair to seal split ends.