Long-lasting, powerful relief. Preservative free in the eye. Severe dry eye relief. GenTeal Gel delivers advanced hydration with a lubricating system that works in separate layers of the tear film for long-lasting relief of dry eye symptoms. GenTeal Gel is unique from other lubricant eye drops because it contains GenAqua. GenAqua creates a preservative free environment in the eyes that protects the eyes just like natural tears, making it safe to use over the long term. Made in Switzerland.