Answer
Sep 29, 2025 - 09:01 AM
No, you do not need to refrigerate our Hyperthyroid Tonic for cats. The USP organic vegetable glycerin in the formula acts as a safe and natural preservative for up to twp years. Store in a cabinet out of direct sunlight and away from heat. The "Best by" date for all of our supplements and herbal remedies can be found on the bottom of the container.
