Similasan is a Swiss brand dedicated to helping families feel good about feeling better. Our gentle eye drops provide natural temporary relief from dry eye symptoms. For over 40 years, Similasan has been used by pharmacists and families in Switzerland. Similasan is a leading brand of homeopathic remedies with natural active ingredients to keep families healthy. Similasan homeopathic eye drops are made with natural active ingredients like eyebright, not harsh chemicals. Similasan eye drops do not contain vasoconstrictors: chemicals that cause rebound effect. Similasan Dry Eye Nighttime Gel drops provide temporary overnight relief from dry eye symptoms like redness, burning, stinging, and irritation. Use as often as needed with no known side effects.