Iroha Nature SOS Pimple Patches 18 Patches are thin, transparent, single-use hydrocolloid patches. They can be used on both the face and body.| They are infused with una solution that combines salicylic acid, tea tree extract, and centella asiatica (Cica) to protect the skin and improve the appearance of the pimple.| Dermatologically tested.| Vegan.