Similasan allergy eye relief sterile eye drops are a homeopathic remedy. These sterile eye drops come packaged in one 10 ml. Dropper bottle and are free of harsh vasoconstrictors. This is a product of switzerland. Active ingredients are manufactured according to homeopathic principles and include apis mellifica. country of origin : united states is gmo free : yes size : .33 fz pack of : 1 selling unit : each ingredients : active purpose apis mellifica 6x burning;itching;stinging euphrasia officinalis;eyebright;6x redness;swelling;watering sabadilla 6x watering;redness of lids inactive : borate buffer;purified water;silver sulfate;as preservative;sodium nitrate keywords : dust;itchy;pollen;redness;springtime;watery