Popmask Calm Self-Warming Eye Masks - Chamomile Scent - A self-heating eye mask, providing you with 20 minutes of soothing bliss. The heat specifically targets and warms key Chinese pressure points around your eyes as studied in Chinese medicine to be as relaxing as possible. The mask itself is made from non-woven cotton, each heat cell contains iron powder, vermiculite, activated carbon, salt, and water, all naturally occurring ingredients. The mask is naturally chamomile scented and free from artificial ingredients.