The COSRX Hydrogel Very Simple Pack is a daily gel mask made of hydrogel to help cool down heated and inflamed skin. Drenched in a moisture boosting essence containing centella asiatica extract to soothe, ceramide NP to strengthen and hyaluronic acid to deeply hydrate, these patches are a quick, innovative and convenient way of masking anywhere. Perfect to help prep and de-puff skin before makeup application, or for calming on the go. Vegan. Hypoallergenic. Dermatologist tested.