Dry Eye Relief: The Truth About Artificial Tears, Preservatives & Propylene Glycol
Separating Fact from Fiction in Artificial Tears
Confused about preservatives or “antifreeze” in your eye drops? Preservatives help prevent harmful bacteria growth in multi-use bottles, while propylene glycol—a safe, FDA-approved lubricant—keeps eyes hydrated. It’s not toxic antifreeze. Understanding these ingredients can help you choose the safest, most effective drops for your needs.