Relaxing Eye Pillow (Lavender & Geranium) Linseed Eye Pillows are made up of a silk and polyester pillow case filled with linseed with essential oils specially formulated for a relaxingexperience. Place your eye pillow inside the resealable bag provided and place it in the freezer for an hour or so. When the bag is cool take it out of the freezer, remove it from its bag and place the pillow across the eyes. The relaxing weight of the linseed inside the cover gently presses against your eyes and forehead releasing tensions in the body and refreshing the eyes.