We all want our eyes to feel better during allergy season, but many allergy sufferers are concerned about the chemicals found in allergy eye drops. Traditional over-the-counter allergy drops use chemicals such as vasoconstrictors to mask symptoms. Vasoconstrictors may actually worsen the symptoms if used more than directed (usually 4 times a day maximum). Similasan works differently, by using natural botanical extracts from the pollen heavy climate of Switzerland to stimulate the body’s natural defenses and target the root cause, so you can feel better without harsh chemicals. Go ahead, use as often as needed. No harsh vasoconstrictors or antihistamines Available in preservative free single-use droppers No known side effects Gluten & dairy free