Becca is a writer and aspirational dog owner living in NYC.

If you have ever suffered from a cold or a bout of allergies, there’s a good chance you picked up a box of Kleenex to help tide you over through the sniffles.


After all, tissues are much-needed accessories, whether you have a spring flu or just a bad bout of sinus stuffiness!

Still, even the most devoted Kleenex fan has probably never noticed the one sneaky secret hidden inside ever single container.

When you have a box of tissues sitting on the shelf for a long time, does it sometimes seem like they’re starting to go yellow?

If you’ve ever noticed this color change, there’s a good chance you chalked it up to the tissues inside aging.


It makes sense: paper changes color when it ages, so why shouldn’t tissues?

However, you might be surprised to know that the color change has nothing to do with the paper getting older, and everything to do with a clever and subtle design trick hidden inside every box of Kleenex.