What is Period Underwear? (Plus the Best Brands)

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As we grow to be extra targeted on sustainability and being financially savvy, we’ve got to cease and suppose. How a lot does caring for our month-to-month cycle add to the landfill? Most pads and tampons aren’t precisely recyclable or biodegradable. In addition to that, stocking up on interval merchandise every month provides up over time. What different choices do we’ve got? Nicely, many ladies are turning to “interval underwear.” 

What Is Interval Underwear?

Interval underwear are reusable, extra-absorbent panties. The concept is to scale back or eradicate the necessity for disposable menstrual merchandise like tampons and pads. So, if you happen to’re sick of coping with panty liners, pads, tampons, and even the menstrual cup, preserve studying. Interval underwear generally is a unbelievable different — (or addition), relying on how you utilize them. 

Interval underwear are panties designed with particular moisture-wicking gussets.  ( That is the thick half on the backside) that soaks up the menstrual move. The gussets might be fabricated from cotton, wool, or artificial materials, reminiscent of fleece-like materials. 

Relying on the model, one pair of interval underwear can maintain as a lot liquid as 5 common tampons! Interval underwear have extra makes use of than the menstrual cycle. You may as well use them for incontinence associated to maternity, postpartum, and exercises. You’ll be able to study extra about these pesky leaks and the best way to repair your pelvic flooring right here. 

Interval Underwear Decisions 

Menstrual underwear is available in many sizes (from XXS to XXL) and cuts, identical to common underwear. You’ll be able to nonetheless get bikinis, hipsters, boyshorts, briefs, hi-waist, and hiphuggers. When you’re involved about panty strains, don’t fear — they even make thongs! 

In addition they are available in a wide range of materials, like cotton, bamboo, polyester, modal, and spandex/elastane. As a rule, they’re a mix of those materials. (The waistband could be Spandex or elastane.) 

Consequently, you will get panties constructed from lab-created or pure materials, like cotton and bamboo. Nevertheless, the gusset could also be fabricated from a special materials than the remainder of the underwear, because it must be absorbent.

Is Interval Underwear Protected to Put on? 

So, it appears like a good suggestion, however are interval underwear secure? There’s some concern that sure manufacturers have per- and poly-fluoroalkyl substances (PFAS).  These “endlessly chemical compounds” are sometimes present in waterproof materials like raingear as a result of they repel water. They’re linked to hormone imbalance, decreased fertility, immune system issues, and low start weight. 

Thinx, Inc., is a New York Metropolis-based model that serves as an umbrella for 3 totally different collections. Thinx is underwear to soak up durations. For teenagers, there’s Thinx Teenagers. And Speax is underwear for bladder leaks. From 2020 to 2022, three class motion lawsuits have been launched towards Thinx for PFAS contamination. 

After consolidating these lawsuits into one, they reached a settlement in December 2022. Ladies who had bought the underwear and have been involved about PFAS may submit a request for a refund or a voucher for a future buy.

PFAS testing seems for fluorine within the supplies. Thinx had fluorine in as much as 3,264 components per million (ppm), which may be very excessive. Different manufacturers that had smaller quantities of fluorine have been Knix (373 ppm), Maintain (as much as 71 ppm), Ruby Love (27 ppm), and Saalt (10 ppm). 

I’ve listed the panties that examined 0 ppm of fluorine beneath. 

Execs and Cons of Interval Underwear 

As you now know from the PFAS problem, there are professionals and cons to sporting specialised interval intimates.

Execs of Interval Underwear

There are many professionals of interval panties:

  • Environmentally Pleasant – Interval panties decrease month-to-month waste. Nevertheless, as I simply lined, the kind of materials issues. Some interval underwear manufacturers don’t simply have PFAS or fluorine. Some have artificial materials, like nylon and polyester, which come from petrochemicals. Aka what plastics are made out of. Washing these artificial supplies sheds microplastics into the water. These finally move into our groundwater, lakes, rivers, and oceans. That’s why you’ll wish to go for natural cotton, bamboo, and different pure supplies when potential. 
  • Main Up & Trailing Off – With busy schedules, it’s comprehensible if we sometimes lose monitor of the precise day of our durations. Generally we’re additionally too fast to place away the panty liner. That’s the place interval underwear can actually assist.
  • Nighttime move – Why danger staining the sheets? Interval panties work nicely by way of the evening.  
  • Postpartum bleeding – Vaginal births can result in postpartum bleeding, and sporting a tampon isn’t superb. Thick pads might be aggravating; that’s the place interval panties are available in! 
  • Backup Leak safety – Generally tampons leak, particularly with heavier move days. Interval panties can function insurance coverage.
  • Extra Snug Than Pads – The gussets of interval underwear are a lot thinner than pads, in order that they’re extra snug to put on. Interval panties transfer with you and don’t go off-center as menstrual pads can.
  • Much less Cramping – Some girls report much less cramping after they use interval underwear as an alternative of tampons. It is smart, as interval panties are non-invasive. 
  • Journey comfort – Lengthy flights could make it difficult to get to the lavatory when we have to change out a tampon. Interval panties can maintain a pair (or extra) of tampons’ price of move, providing you with extra time (as much as 24 hours!). They’re an excellent addition to your journey packing listing. 
  • Machine-washable – You’ll be able to machine wash most interval underwear manufacturers, at the very least after briefly soaking., making This makes them handy to scrub and put on.

Cons of Interval Underwear 

Some potential downsides embody the next: 

  • PFAS and different chemical contamination – Common PFAS, fluorine, and different chemical exposures could also be hazardous over time. That’s particularly the case for something in shut contact along with your non-public components.
  • Price: Interval underwear are typically costlier than common underwear. They vary from $12 to $55 per pair.  
  • The washing out course of – Handwashing among the underwear in chilly water earlier than machine washing isn’t so enjoyable. Nevertheless, as talked about, merely soaking first could also be an possibility.
  • Want for altering – Heavy move days might require altering mid-day, identical to pads or tampons.
  • Potential for leakage – Sadly, not all interval panties are leakproof. Whereas some designs can maintain as much as 5 and even 10 tampons’ price of liquid, others maintain two or fewer.
  • Potential for odor – Relying on the fabric, utilization (interval vs. incontinence), and time sporting them, there’s a possible to construct up an odor.

The professionals and cons rely upon which manufacturers, cuts, and materials you get. Examine the newest critiques to make the perfect buy.

How you can Take Care of Interval Underwear

The particular cloth in interval underwear requires some particular care. Go for light soaps and detergents over harsh detergents and bleach. Additionally, keep away from utilizing cloth softeners or different chemical compounds.

Prime Interval Underwear Manufacturers

The most effective interval underwear is freed from toxins, snug, and simple to look after. These are among the hottest chemical-free manufacturers.

The Interval Firm’s 

The Interval Firm’s “The Excessive-Waisted” underwear will get wonderful critiques. This firm additionally examined 100% freed from PFAS and makes use of OEKO-TEX licensed 95% natural cotton (the remaining 5% is polyester). They’re additionally reasonably priced, beginning at $12 a pair, and may final wherever from 2 to 10 years. 


Modibodi interval panties are 95% bamboo viscose with 5% spandex so as to add stretch. The liner is a mix of merino wool, polyester, and polyamide. Modibodi’s natural cotton types are licensed by the World Natural Textile Commonplace (GOTS). They’re estimated to final at the very least 2 years. Impartial lab testing discovered zero PFAS. In case your man has leakage points, Modibodi has him lined! They’ve a males’s line as nicely.


Bambody is one other clear model that examined freed from PFAS and different chemical compounds. The title comes from their use of bamboo cloth, which is mixed with cotton and spandex. The liner is artificial, although. Bambody is licensed by way of OEKO-TEX. They have been additionally licensed secure by the Hohenstein Textile Testing Institute in Germany. They’re estimated to final a couple of 12 months and a half.


Aisle is a sustainable interval underwear model based mostly in Canada. They use impartial testing to make sure there are not any detectable ranges of PFAS (lower than 1 ppm). Their supplies embody natural cotton, Tencel, recycled polyester, technical cotton, thermoplastic polyurethane, and different supplies. The liner is fabricated from Truetex™ which is a mix of hydrophilic and hydrophobic fibers. Aisle is licensed by OEKO-TEX and Management Union, underneath the OCS (natural content material commonplace). They need to final about 3 years.


Whereas WUKA wasn’t a part of the research, they do common testing to make sure their merchandise are PFAS-free. They use GOTS (World Natural Textile Commonplace) licensed natural cotton, recycled plastic, and Tencel modal fibers from beech timber. Tencel modal is biodegradable and compostable, so it doesn’t burden our landfills. WUKA can also be licensed by way of OEKO-TEX. Plus they’re estimated to final at the very least 2 years. 

A few of these firms even have swimsuits, bras, sleepwear, and different intimates.

Interval Underwear: Backside Line

Subsequent time you want a brand new pair of underwear, contemplate getting some interval panties. You might be able to vastly reduce and even eradicate menstrual merchandise out of your price range. They’re accessible and simple to seek out – you’ll even see them on Amazon. However if you happen to’d favor to buy regionally and really feel the material before you purchase, you may also discover them at pure merchandise retailers and malls. Interval panties may help take the stress out of menstruation! 

Have you ever tried interval underwear? What has your expertise been? Yay or Nay? Any beneficial manufacturers? Share with us beneath!

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