Nasolang physiological seawater nasal spray bottle below, written is the production date or expiration time

The date of manufacture, not the expiration date, is marked on the bottom of the bottle of Nasalang Physiological Seawater Nasal Spray. Because Nasalang Nasal Spray is a medical device, unlike ordinary consumer products, the date of manufacture is very important. The production date indicates when the product was manufactured and can help doctors or consumers understand the product's expiration date and safety.