Natural Active IngredientsHomeopathicOriginal Swiss FormulaSimilasan, Trusted for Over 40 Years in SwitzerlandNo Harsh ChemicalsNon GMO Project Verified Feel Good About Feeling Better™Use As Often As NeededSafe for Use with Contact Lenses†Uses: According to homeopathic principles, the active ingredients in this product temporarily relieve minor symptoms such as: Aching eyes BurningRedness Strained eyes (Computer, TV, reading, driving)†Our drops will not harm contact lenses, however we recommend not wearing contacts while experiencing eye irritation.