Are Period Pants Really Hygienic?

Team @ FLUX Undies

In a rush but got fear of missing out? Here's a summary for you:

  • Period pants are reusable, washable underwear that absorb blood and prevent leaks, replacing disposable pads, tampons and menstrual cups.
  • Our period underwear works by absorbing blood and preventing leaks in the central layers, with the top layer closest to the skin remaining fresh and dry
  • Period pants are worn externally so do not pose a risk of toxic shock syndrome
  • Our period underwear is designed to be worn for up to 12 hours or 5 tampons' worth of blood (the most absorbent yet!)
  • Our period pants do not contain any toxins or chemicals and are OEKO Tex certified making them safe for skin, but some brands do, so when looking at brands of period pants, be sure to check for toxins/chemicals before buying! 

Ok, disclaimer, we really do love our period underwear so we might be a *little* bit biased, but on a daily basis we get A LOT of questions about period pants and whether they are hygienic or not, so we are going to use this post to break down all the important information and really dive right in to exactly what period pants are, how period pants work, how they differ to conventional disposable products and serve all the facts you need to know!


What exactly are period pants? (it's the question everyone is asking)

Period pants are underwear that includes a built-in gusset, usually made of 3 or 4 layers of different fabrics, that absorbs blood and prevents leaks. Depending on the period panty, style and absorbency, they can hold different amounts of blood and can be worn for different amounts of times, usually between 6-12 hours. Depending on the period panty, they can either be worn as a back-up or as a full replacement for pads, tampons, and menstrual cups.

How do period pants work?

Each pair of FLUX Undies period pants have built-in three layer tech in the gusset of the underwear that works to absorb your period blood and prevent leaks.

  1.  The top layer wicks moisture away from the surface quickly, keeping you dry
  2.  The middle layers absorb and lock in blood/liquid
  3.  The bottom layer prevents leaks, keeping them leak-free

Are period pants hygienic?

Period pants work in the same way that disposable pads and tampons work, in terms of absorption and preventing leaks, however, our period panties do not contain any of the harmful toxins and chemicals that are often found in conventional disposable period products. Our period panties use fabrics and fibres that are naturally anti-bacterial and all of our materials are OEKO-Tex certified meaning they are safe for the skin and hygienic.

Do period pants smell?

Our period panties are made using natural fabrics with fibres that are designed to naturally prevent bacteria from building up, in turn controlling odour, meaning that you can wear them for up to 12 hours (depending on the style) feeling fresh and dry.

How long can you wear period pants for?

Depending on your flow and the period underwear style you purchase, you can wear our period pants for up to 12 hours, whilst remaining fresh and dry. The built-in tech works to absorb blood, lock it in, and prevent leaks keeping things hygienic, fresh, and dry. You will know when it's time to change your underwear as they will not be able to absorb any more and the blood will begin to sit on the surface. This helps to ensure that everything is hygienic and you are not wearing the underwear longer than it should be worn.


Once you have finished wearing them, they can simply be rinsed and chucked in the washing machine, ready to be worn again, good as new. 

Do period pants contain any dangerous chemicals or toxins?

Unlike conventional disposable pads and tampons, our period pants are made from natural fabrics and fibres and do not contain any dangerous chemicals or toxins. Toxic shock syndrome is associated with using tampons and this risk is also removed by using our period-proof underwear as they are worn externally and contain no toxins or chemicals. All of our leak-proof underwear is OEKO-Tex certified meaning that it is safe for use on the skin. 

Other frequently asked questions

How much blood do period pants absorb?

Our period pants can absorb up to 5 tampons' worth or 25ml, depending on the style. Our absorbencies range from holding 1 - 5 tampons' worth and from Lightest flow to Super Heavy flow.

Can I get an infection from wearing period panties for too long?

Unlike conventional disposable pads and tampons, our period pants are made from natural fabrics and fibres and do not contain any dangerous chemicals or toxins. Toxic shock syndrome is associated with using tampons and this risk is also removed by using our period-proof underwear as they are worn externally and contain no toxins or chemicals. All of our leak-proof underwear is OEKO-Tex certified meaning that it is safe for use on the skin. 

Do I need to wear any other products with period pants?

Our period pants completely replace other period products like pads, tampons and menstrual cups. Our period underwear can be used on their own. Our period flows are all different, so when purchasing our products, look for the absorbency stated to find products that match your flow.

What are period pants made of?

Our classic line of period panties are made using natural, eco-friendly Micro-Modal which derives from beech trees. Our essential line of period panties are made using BCI Cotton. Some of our styles, such as High-Waist and our seamless collection use soft silky Nylon on the outer for a smooth feel. All of our underwear is OEKO-Tex certified meaning the fabrics used is certified as safe for skin. We are a vegan and cruelty-free company and all of our products are and will always be, vegan and cruelty-free.

How many years does period underwear last for?

Our period underwear is designed to last at least three years or 80 washes. 

Can I wash the underwear with other regular clothes?

Yes! You can chuck them in the wash as you would your regular clothes. The blood will naturally rinse out and will not cause any staining to any other clothing.


So, now you know all you need to know on how period pants work and whether they are hygienic! 


Do you wear period pants? What do you think of them? 

Let us know what you think and ask any questions below!


Ready to period better? 

Shop safe, comfortable, leak-proof period pants at FLUX Undies

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