Every facility manager has found it: a case of hand sanitizer at the back of the supply room, a year past the date on the label. Toss it? Use it? The answer starts with understanding what that date actually represents.
The date is about potency, not spoilage
Hand sanitizer is regulated as an over-the-counter drug in the United States, which is why it carries an expiration date at all. The date is the manufacturer's guarantee that the active ingredient still meets its labeled strength. Sanitizer does not spoil the way food does; it fades. In alcohol-based products, the mechanism is simple physics: alcohol evaporates, even through sealed plastic, and once the concentration drifts below the effective range, the product kills less reliably.
Storage moves the date
Heat accelerates evaporation and degradation. A pallet stored in a hot warehouse, a delivery truck in an Arizona summer, or a dispenser mounted in direct sun ages product faster than the label assumes. Cool, consistent storage does the opposite. This is why receiving practices matter as much as purchase dates for institutional buyers holding safety stock.
What to do with expired stock
- Do not assume expired product is useless — it is likely weaker, not dangerous, but it can no longer be relied on for infection control purposes
- Rotate stock first-in, first-out, and date cases on receipt
- Buy to your realistic burn rate rather than pandemic-era hoarding patterns
A note on water-based formulations
Water-based, alcohol-free sanitizers like Covexall are not fighting the same evaporation clock, since their active system is not a volatile alcohol. Every regulated sanitizer still carries a labeled shelf life, but for facilities tired of discovering weakened stock, formulation choice and storage discipline together decide how much product you buy twice.
Covexall is a topical hand sanitizer for external use only. Performance figures referenced in this article are drawn from the 2022 Covexall white paper and the independent laboratory studies cited in it, including testing conducted at Arizona State University's Biodesign Institute. Continued antimicrobial activity lasts up to four hours after application.
