StacksVerified U.S. regulatory reference

21 CFR §349.20

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The active ingredient of the product is purified water. The product also contains suitable tonicity agents to establish isotonicity with tears, suitable agents for establishing pH and buffering to achieve the same pH as tears, and a suitable preservative agent.