Similasan Allergy Eye Relief - 20 Single Use Droppers Eye Drops Are Preservative Free. Manufactured According To Homeopathic Principles, The 100% Natural Active Ingredients In 20 Sterile Single Use Droppers Provide Multi-Symptom Relief For Itching, Burning, Watering And Redness And Give Your Eyes Soothing Relief From Irritating Allergens, Such As Pet Dander, Mold Spores And More.