Many other eye drops have vasoconstrictors or harsh chemicals that may actually worsen symptoms if used more than directed. Complete Eye Relief works in harmony with your body to boost your natural defenses, so you can feel good about using it on you or your child. It is also gentle enough to use as needed when symptoms occur, making it a perfect addition for every medicine cabinet. Try Similasan and feel good about helping your eyes feel better. We all want our eyes to be white and clear, but many are concerned about the chemicals found in redness reliever eye drops. Most over-the-counter redness reliever eye 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 Redness & Ithcy Eye Relief 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.