Gentle and Natural Eyedrops with Colloidal Silver, Hyaluronic Acid, Euphrasia, MSM and Vitamin C. These healing and cleansing eyedrops are fragrance free. Colloidal Silver is effective against bacteria and fungi because it suffocates the harmful microbes without harming the living tissue of the animal. Can be used to treat infections, allergies, inflammation and tear staining. Hyaluronic Acid is used to lower inflammation and speed up healing after surgery. As it is moisturising it can help hydrate dry eyes. Euphrasia has been used in traditional herbal medicine in Europe for centuries. Also know as eyebright, euphrasia is known for soothing red and irritated eyes. MSM & Vitamin C- When MSM is applied into the eye, the antioxidant sulphur plus vitamin C aids in excreting metabolic waste away from the ocular tissues of the cornea, intraocular lens and retina to lessen free radical damage.