10 Things You Never Knew Had an Expiry Date

1. Car seat: A child car seat is an essential item since it guarantees the safety of your baby or toddler. Therefore, it must be installed properly and it shouldn’t be used past its expiration date. The expiration date is printed on the bottom of the seat, and the longevity of a car seat varies depending on the date of manufacture and the brand. For example: Graco and Britax car seats tend to expire after six to ten years, depending on what type of seat you have.

2. Sunscreen: Sometimes sunscreen comes without an expiration date, which doesn't mean that it lasts forever. In fact, experts believe that sunscreens are generally effective for only three years, after which they start to lose their effectiveness.

3. Car engine oil: Experts believe that there is no problem in storing engine oil when buying it in large quantities, but it should be known that the chemical properties of the oil change after five years, putting its efficiency at risk.

4. Tea bags: When storing tea bags in large quantities in the kitchen, you must check their expiration date, as the tea itself may not spoil, but it may lose its quality after about two years. And according to the manufacturers, tea can be preserved for a longer period by storing it in the freezer.

5. Sunglasses: Don't waste much time looking for a small date printed on your sunglasses, as you won’t find one. Sunglasses are used to protect the eyes from the glare of the sun, as sunglasses block the harmful ultraviolet rays that may cause cancer. Unfortunately, sunglasses become less effective at blocking UV rays over time according to researchers at the University of São Paulo, in part due to normal wear that might scratch the lenses.

6. Paint: Some paint cans do not have an expiration date. However, that does not mean that their quality will remain the same every time you use them. Painting experts advise discarding any paint after opening it after two to four years. Unopened oil paint will stay good for about 15 years, and latex-based paint will stay good for about ten years. Regardless of the time, any moldy, dry, or chipped paint should always be discarded

7. Toothpaste: Toothpaste is an essential product that we use daily, so it is advised not to buy it in bulk, as the expiration date of the tube depends on the manufacturer and brand. Colgate toothpastes, for example, are generally good for only two years from the date of manufacture.

8. Soap bars: Soap bars lose their effectiveness over time. Some do have a clear expiration date written on it, but for those that do not, experts recommend storing them for a period of no more than three years. One of the signs that your soap bars expired if they looked dry and cracked.

9. Oxygenated water: Oxygenated water bottles remain good for 3 years if they are not opened. But once opened, it loses its effectiveness after about six months of opening the cap and exposing it to air.

10. Running shoes: Some shoe makers argue that a pair of running shoes should be replaced after running 300 to 600 miles wearing them, as exercising in a pair of shoes increases the wear of the interior lines over time reducing your ability to run efficiently and increasing your risk of being injured.