What Is the Lifespan of Teen Period Underwear?

Here’s how long your teen's period underwear will last them and what you can do to preserve their effectiveness for as long as possible.

One of the best aspects of period underwear, of course, is that it's reusable. The average menstruator will use up to 15,000 pads or tampons in their lifetime, adding up to a whole lot of waste. Period underwear is reusable making it an effective tool to help curb your child's individual waste. But once they have their period underwear, you might begin to wonder, how long exactly will this last?

close-up of pink period underwear

How Long Will Period Underwear Last?

According to our experts in the product department, each pair of Kt by Knix period underwear has been wash-tested 50 times and are guaranteed to withstand the same treatment at home. The exact lifespan of the undies will vary depending on how and how often your child wears and washes the underwear over time.

Keep reading for our tips on how to extend their lifespan. 


How to Preserve the Lifespan of Period Underwear

Period underwear is your child's secret weapon, their competitive advantage, and maybe even their best friend, so it’s natural you want it to last as long as possible. Here are a few tips on how to preserve its lifespan so it serves them well into the future.

  1. Follow proper washing instructions. Here’s a blog post on the proper way to wash your period underwear.
  2. Always wash in cold water, as heat will break down the fibers faster.
  3. Air-dry your period underwear. (Unless they’re the Super Leakproof or Cotton Modal Super Leakproof underwear, in which case it’s safe to tumble-dry on low heat.)

woman wearing sweater and patterned period underwear

Once your teen feels that their underwear’s absorbent capacity no longer matches up with their needs, you should consider replenishing their underwear drawer with fresh new pairs of Kt leakproof period underwear. We have a number of styles to meet all your bleeding needs including full-gusset underwear for heavy bleeders, sleepover shorts for overnights and cotton lace bikinis for natural fiber lovers.  Their vulva will thank you.

Take good care of their leakproof period underwear, and they will serve you well for a long time.

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