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7 Organic Period Underwear & Panties For Non-Toxic Leak Protection

Molly Willows

Let’s get personal about organic period underwear.

There’s no question that sustainable period underwear and menstrual cups have revolutionized that “time of the month”. 

They’ve taken Aunt Flo and made her way more eco-friendly by replacing the copious amount of plastic wrappers, applicators, and disposable pads (which, let’s be honest, feel like wearing a diaper).

But for all their benefits, they might be costing wearers a steep price.

Thinx is a case in point. The first and most well-known period underwear brand was involved in a class action lawsuit because of the PFOA chemical contaminants found in their underwear. 

So here’s the big, bloated question: are period underwear non-toxic?

Not to alarm you, but as much as 65% of the market may very well not be.

Fortunately, there are a number of period underwear brands stepping up to the panty plate and providing the best organic (no chemicals) period panties that won’t cramp your health or style—and no, they can’t do anything about your actual menstrual cramps.

So what are the healthiest period underwear?

Everything we recommend to you on Sustainable Jungle is independently researched and we ask all brands to confirm their claims. To avoid waste, we test products on an as needed basis. This post contains affiliate links. If you buy something through our links, we may earn a small commission. Learn more about why we do this here.

The Safest Period Underwear Brands…Period

The Period Company has some of the most affordable non-toxic period underwear in the industry. Starting at only $9, they’re making sustainable, safe period care accessible and inclusive to menstruating folks on a budget. 

Speaking of inclusiveness, Modibodi’s egg-cellent all-gender and plus size period underwear offers a big range of sizes (XS–6XL) and styles for all body types, because everyone and everybody deserves a safe period.

Keep reading to see what other PFAS-free period underwear we’ve written on our pad, or flow to the bottom to learn about how we found them.

The Best Organic Cotton Period Underwear Brands

1. The Period Company

7 Organic Period Underwear & Panties For Non-Toxic Leak Protection Images by The Period Company #organicperiodunderwear #organicottonperiodunderwear #organicperiodpanties #nontoxicperiodunderwear #bestnontoxicperiodunderwear #organicottonperiodpanties #sustainablejungle
Images by The Period Company

About The Period Company

Price Range: $9–$24

What’s the secret to life?

According to The Period Company, “flowing is knowing”, and apparently you can only identify with this “more than physical” sensation when you wear their organic period underwear.

We’re sold; they have us bloody excited—especially their supportive, High Waisted Period for heavy flows. 

All organic cotton period panties and leakproof sleeper shorts boast worry-free protection, with absorbency ranging from 2 tampons to 10 tampons of menstrual blood, so even heavy flows can skip the backup overnight pad.

The Period Company’s Ethical & Sustainability Practices


Made with an organic cotton body and polyester absorbent, leakproof layers, each of their panties have been rigorously tested by a third party company to ensure they are free from harmful toxins like PFAS. 

All period undies bear a non-toxic OEKO-TEX certification.

Supply chain & labor practices:

The Period Company doesn’t specify where their period products are made, so we’ll reach out to inquire.


Offering plus size period underwear, sizes range from XS to 6XL. 

Community & charitable giving:

The Period Company believes sustainability and attainability should go hand in hand. 

They are very vocal on social media, speaking up on legislative changes, trans rights, women’s rights, and climate change. 

They have previously shown support to a free period care event in LA where they donated period products in hopes of ending period poverty.

Recognizing that change is a community effort, they allow customers to give a donation that covers the costs of shipping four pairs of reusable period undies to refugees in Ukraine and around the world via Choose Love.

2. TomboyX

7 Organic Period Underwear & Panties For Non-Toxic Leak ProtectionImages by TomBoyX#organicperiodunderwear #organicottonperiodunderwear #organicperiodpanties #nontoxicperiodunderwear #bestnontoxicperiodunderwear #organicottonperiodpanties #sustainablejungle
Images by TomBoyX

About TomboyX 

Price Range: $25–$36

They’re one of our favorite sustainable activewear brands, but we aren’t ovary-acting when we tell you that TomboyX has some of the best non-toxic period underwear, too.

You can find various styles in the First Line range, from period boxers to boxer briefs to leak proof hipsters. Depending on the style, absorbency can be from 4 to 8 teaspoons of flow.

They come in black, purple, or blue colors with the option of solid colored or rainbow waistbands.

TomboyX’s Ethical & Sustainability Practices


While not certified organic, they are made of OEKO-TEX-certified cotton with a polyester/spandex liner.

It’s antimicrobial, odor repellent, and tested to be free from nasty PFOS and PFOA chemicals. 

Supply chain & labor practices:

TomboyX is a Certified B Corp and while we aren’t sure where their factories are located, we know they’re ethically certified by WRAP or the FLA and employees receive fair pay and numerous benefits.

Carbon commitments & green practices:

Headquartered at a Gold LEED certified building, they use biodegradable, sustainable packaging for natural or recycled products. 

They are actively creating a greenhouse gas emission plan that focuses on incorporating carbon offsetting and garment recycling into their current business model. 


Down to their models and brand image, queer-owned TomboyX provides empowering clothing to people who remain underrepresented in the fashion industry. 

That includes the TomboyX team, which is 35% BIPOC, 30% LGBTQ+, and 77% female-led.

The size and gender inclusive non-binary brand’s leak proof undies have been fit tested on all sorts of body types, from 3XS to 6XL. 

Community & charitable giving:

TomboyX continues their effort toward queer representation through donations to organizations like the Trevor Project and the National Center of Transgender Equality.

3. Saalt

7 Organic Period Underwear & Panties For Non-Toxic Leak Protection Images by Saalt #organicperiodunderwear #organicottonperiodunderwear #organicperiodpanties #nontoxicperiodunderwear #bestnontoxicperiodunderwear #organicottonperiodpanties #sustainablejungle
Images by Saalt

About Saalt

Price Range: $27–$45

Just like salt is a staple in our zero waste kitchen, Saalt is equally important to our zero waste bathroom, thanks to their top-quality menstrual cups and discs. 

Named after something that is natural and essential for our bodies (just like our periods!), Saalt’s organic period panties have us feeling anything but salty.

Though thin, they remain mighty, with an absorbance of up to 4 tampons worth of flow. 

Fashion isn’t sacrificed for function, either. Take the Leakproof High Waist Brief, for example, which features a silky smooth fabric topped with a stunning inset of European lace. 

Saalt’s Ethical & Sustainability Practices


Choose between several collections, including seamless panties made of LYCRA® XTRA LIFE™ and lacy ones made of recycled polyester.

Their best non-toxic period underwear, however, is their OEKO-TEX-certified Cotton Collection or their TENCEL™ modal Comfort Collection, due to the natural nature of these fabrics.

All collections are FDA registered and compliant and not treated with PFAS.

Their patent-pending gusset technology is designed from four functional layers that result in super thin, ultra-absorbent padding that won’t make you feel like you’re wearing eco-friendly diapers

Supply chain & labor practices:

We’re not sure where this Certified B Corp’s period undies are made, but we do have access to their Code of Conduct. We’ll be reaching out to inquire.

Carbon commitments & green practices:

Saalt’s recycled polyester period undies have repurposed almost 600,000 water bottles. You can track their progress in yearly public impact reports.


Sizes range from XS to 2XL and can be found online or in the Target period panties section.

Community & charitable giving:

Founded after a fateful phone call from an aunt in Venezuela who was having trouble accessing period products, Saalt dedicates 2% of their profits to fund initiatives in menstrual health access, education, and sustainability. 

They’ve donated over 52,000 menstrual products, backed 78,800 pounds of waste cleanup, and funded 373,700 days of school—earning them the Beauty Independent’s prestigious Philanthropy Champion award.

4. Modibodi

7 Organic Period Underwear & Panties For Non-Toxic Leak Protection Images by Sustainable Jungle #organicperiodunderwear #organicottonperiodunderwear #organicperiodpanties #nontoxicperiodunderwear #bestnontoxicperiodunderwear #organicottonperiodpanties #sustainablejungle
Images by Sustainable Jungle

About Modibodi 

Price Range: $25–$35

Modibodi has some of the best organic period underwear out there—especially when making the Modibodi vs Thinx comparison, since you won’t find any harmful fluorines in Modibodi panties.

If you’re looking for patterned, pink period panties to add from fun to your flow, their Recycled Seamfree Bikini has just what you’re looking for using 73% recycled nylon that hugs the legs without cutting off circulation at the leg holes

Modibodi offers a 60-day risk-free trial with no strings attached (unlike that toxic tampon). 

Modibodi’s Ethical & Sustainability Practices


Their leakproof undergarments are made from sustainable fabrics like recycled nylon and bamboo fabric.

Their gusset is made from wool, polyester, polyamide, and elastane, though they do have a vegan gusset made from polybrush rather than wool. 

Though only 3mm thick, its triple layer holds 2-3 tampons of liquid while fighting bacteria and smells for periods, incontinence, pregnancy, and postpartum bleeding.

Supply chain & labor practices:

With all entities falling under the BSCI umbrella, their suppliers and factories are audited for safe conditions and fair wages and treatment.

Carbon commitments & green practices:

Products ship in plant-based comPOST parcel bags.

They also offer a fully Carbon Neutral Seamfree Full Brief—which we think is some of their best period underwear.


Modibodi wants to promote safe period care to everyone who menstruates, which is why you’ll find an all-gender line as well as non-toxic period underwear for teens.

As with their plus-size lingerie, sizes range from XS to 6XL. 

Community & charitable giving:

Every dollar spent provides a five pack of non-toxic period underwear to those without access to proper period products.

Modibodi has donated over 10,000 pairs of period undies to victims of domestic violence and school education programs through partners like Ready for Red, My Vital Cycles and Sustainable Period Project.

5. Cora

7 Organic Period Underwear & Panties For Non-Toxic Leak Protection Images by Cora #organicperiodunderwear #organicottonperiodunderwear #organicperiodpanties #nontoxicperiodunderwear #bestnontoxicperiodunderwear #organicottonperiodpanties #sustainablejungle
Images by Cora

About Cora

Price Range: $30–$38

What’s unique about Cora’s designs isn’t just that they won’t bunch or dig in, but that the “floating gusset” provides an extra layer of fabric under which you can tuck pad wings in case you need a backup.

And if you do, check their range of organic cotton pads and organic tampons.

Keeping it simple, Cora period underwear are available in two styles: Free-To-Flow Period Underwear and Free-To-Flow Sleep Shorts, which replace 6-10 (!) regular tampons per wear.

The soft, breathable fabric blends yields period undies designed for all occasions, whether it be sleep, exercise, or cramping on your sustainable couch

Cora’s Ethical & Sustainability Practices


In the outer layer of their period underwear, organic cotton takes center stage, encasing two different layers of leakproof polyester, elastane, and TPE in the gusset.

All fabrics are OEKO-TEX-certified and further tested by an additional third party USA lab, showing they contain no “detectable level” of PFAS/PFOA or azo dyes. 

Supply chain & labor practices:

We’re not sure where Cora period underwear is manufactured and will be inquiring directly.

Carbon commitments & green practices:

The brand is currently converting all tampon applicators into plant-based plastic and replacing plastic wrappers with paper. 


Sizes range from XS to 2XL. 

Community & charitable giving:

For each purchase, Cora provides period products and body literacy resources to people in need throughout India, Kenya, and the USA. 

10% of profits help end period poverty, with 75% of domestic giving dedicated to BIPOC communities in most need of these resources.

6. Aisle

7 Organic Period Underwear & Panties For Non-Toxic Leak Protection Images by Aisle #organicperiodunderwear #organicottonperiodunderwear #organicperiodpanties #nontoxicperiodunderwear #bestnontoxicperiodunderwear #organicottonperiodpanties #sustainablejungle
Images by Aisle

About Aisle

Price Range: $34–$48

Have you ever felt excited to walk down the period aisle? No?

Aisle might just change that.

Their non-toxic menstrual underwear are made with a multi-level, leakproof lining courtesy of patented Truetex™ fabric that’s wicking and absorbent without chemical finishes 

It’s guaranteed to hold at least 4 tampons worth of flow. 

Shop all different styles of organic period underwear: boyshorts, bikinis, and even non-toxic period thong panties.

Aisle’s Ethical & Sustainability Practices


Aisle’s PFAS-free period underwear materials include a TENCEL™ lyocell and organic cotton body, with inner layers of recycled polyester, organic cotton, hemp, and TPU.

All materials are OEKO-TEX-certified and lab tests show no detectable levels of PFAS to 1ppm (part per million).

Supply chain & labor practices:

Aisle is the top ranking Certified B Corp for period care in the world, with over double the impact score of the B Corp baseline. They have been voted best for overall, changemakers, and environment.

We’d still like to know a little more about their manufacturing partners.


Sizes range XS to 5XL, with inclusive modeling to match all these sizes.

Community & charitable giving:

Their advocacy and support for fair and equal access to essential period products is long-standing and continuous. 

They donate 2% of sales towards nonprofits that address period poverty and gender equity, supplying reusable pads and period underwear to over 17,000 menstruating people in 18 different nations.

7. Rejeanne

7 Organic Period Underwear & Panties For Non-Toxic Leak Protection Images by Rejeanne #organicperiodunderwear #organicottonperiodunderwear #organicperiodpanties #nontoxicperiodunderwear #bestnontoxicperiodunderwear #organicottonperiodpanties #sustainablejungle
Images by Rejeanne

About Rejeanne 

Price Range: €35–€69

Both stylish and functional, Rejeanne luxury organic cotton period underwear work like magic.

Designed for 12 hours of peace of mind, you can spend less time worrying about leakage and more worrying about when it’s safe to take another dosage of ibuprofen. 

Rejeanne makes quality, sustainable products good enough to be flaunted around the streets of Paris—right down to the authentic French lace and ruffles that will help you actually feel sexy on your period.

Turn your cramp-induced “oohs” into “ooh la la!” with the gold lace inlay of the Rhéa Venise hipster. 

The creators have spent years working with French fabric experts and ateliers to design eco-friendly, machine washable garments and sustainable lingerie that remain functional yet ultra-chic. 

Rejeanne’s Ethical & Sustainability Practices


Not only are their cotton period panties organic, but they are also free from silver nanoparticles and other harmful chemicals tested by the OEKO-TEX standard.

The organic cotton is combined with some TENCEL™, polyester, and a tiny bit of elastane for bloat-friendly stretch.

Supply chain & labor practices:

The beautifully crafted undergarments are made in France, making for some best organic cotton period panties in Europe.


The brand uses French sizing, ranging from size 34 to size 50. If you’re in between sizes, they recommend sizing up. 

They believe in authenticity and real representation, so none of the photos you’ll find on their websites are photoshopped. 

Community & charitable giving:

The women-owned brand donates part of their profits to women support organizations. 

They currently work with partners who fight against breast cancer and menstrual precariousness, and for women’s right to quality medical care.

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Why Choose PFAS-Free Period Underwear?

We’ve got a lot to say on the topic, but we will try to keep it brief (pun intended.) 

The problem with underwear made from conventional materials is that many of them are treated with a family of harsh chemicals called PFAS.

PFAS are man-made chemicals used in various products due to their effective water, oil, grease, and dirt repellent properties. The most common sources are cleaning products, water-resistant fabrics, nonstick cookware, and personal care products. 

In recent years, they have earned the name “forever chemicals” due to the fact that they bioaccumulate in the environment (and stick around… you guessed it…forever.) 

As these harmful chemicals bioaccumulate, humans become exposed to them by eating food raised in PFA contaminated soil and drinking PFA contaminated water. 

They have been found in the environment and in the blood of humans and animals worldwide. Most people in the United States have one or more specific PFAS in their body.

PFAS have been linked to several human health problems, including asthma, cancer, endocrine disruption, increased cholesterol, and weight gain.

Recent studies in Australia and Singapore have shown they may be a cause of infertility, too, which is especially concerning given the topic at hand.

The growing health concerns surrounding PFAS are raising red flags, so much so that several countries and states are in the midst of filing proposals to ban them. 

There are currently no definitive ways to clear PFAS from the body, which is why the best step we can take is to just avoid them in general.

Fortunately, many organic period panties brands have jumped on board and are now making PFA-free products (but, be warned that organic does not always mean PFA free.)

How We Chose The Best Organic Period Underwear Brands

Uterus(t) us to do the research and that’s exactly what we’ve done here. We all know food can be organic, but did you know that organic clothing exists too? 

Yes, that’s clothing made from crops grown without chemical additives or fertilizers or pesticides. 

Thanks to the growing world of sustainable and ethical fashion, the demand for organic fabric is growing and while the period underwear line is still lagging behind, they’re starting to get with the flow.


Not surprising to anyone, we looked for organic materials here. When it comes to the best period underwear, like these organic pads, organic cotton is by far our favorite choice.

However, GOTS organic cotton period panties are actually still a rarity. Due to the complex nature of effective and sanitary absorbent layers, even those with a mostly organic cotton body usually still had some form of synthetic fabrics used in the leakproof gusset. Which is similar to the options for organic tampons.

So for the sake of providing better options than the stand brands, we also considered brands at least making period underwear non-toxic with PFAS and PFOA-free synthetics, wool, hemp bamboo, lyocell, or modal fabric.

While we definitely prefer all-organic (period, but especially for down there), we recognize that at this time, all organic simply isn’t yet available, even among the best period underwear brands. Hopefully it soon will be!

Supply chain & labor practices: 

People should come above profit, no butts about it. Companies that don’t have basic ethics are companies we do not want to support. 

We want to know everything about a product: where it’s made, who is involved, how often they work, how they are treated, etc. 

Manufacturing certifications help, but transparency is key, something we’re hoping to get a little more of from these brands when we reach out to them.

Carbon commitments & green practices:

Providing reusable period pads is already a huge sustainable step for these, but we also look for additional efforts to reduce their carbon footprint and waste, such as using recycled materials and carbon offset programs


Everyone deserves to have safe period underwear, which is why we appreciate seeing brands offering a large range of sizes and styles that demonstrate awareness that women aren’t the only people with a menstrual cycle.

Community & charitable giving:

Actions speak louder than words, and we love businesses that show initiative through action. In this case, we especially adore business helping with women empowerment organizations. 

Caring For Your Non-Toxic Period Underwear

Buying the best period underwear isn’t the cheapest, at least not compared to regular \underwear.

Though, considering the average menstruating person spends about $7,000 over the source of their life on disposable tampons and pads alone, they’re well worth it.

Still, you want to keep them fit and functional for as long as possible, both for sustainability and financial reasons, so here are some of the best period underwear care tips:

  • Gentle handwashing will preserve the life of your absorbent underwear best.
  • If handwashing them grosses you out, you can toss them in your eco-friendly washing machine. Just machine wash cold and gentle using natural laundry detergent. Cold water actually lifts menstrual blood better than warm water.
  • Do NOT use liquid fabric softeners, as they can permeate the absorbent gusset fabrics. Instead, use non-chemical fabric softener alternatives 
  • Never put in the clothes dryer. Hang or lay flat to dry.

Final Thoughts On Non-Toxic Period Underwear Brands

When Aunt Flo comes knocking, you can’t just slam the door in her face. Though her presence may not be wanted, it’s unavoidable. 

You can choose to either embrace her with a warm, chemical-free hug or a toxin-laden slap to the face—a slap so powerful that it can cause endocrine disruption, asthma, cancer, and infertility.

Choose to honor your Aunt Flo and invest in safe period underwear.

Whether used as a first line of defense or a backup, they’re an essential item to add to your sustainable menstrual care kit (along with chocolate, menstrual cups, and a hot water bottle).

We prefer gloating to bloating, so tap on (or should we say, tampon) the share button to tell your menstruating friends about your fabulous new PFAS-free period panties.

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7 Organic Period Underwear & Panties For Non-Toxic Leak Protection Image by Saalt #organicperiodunderwear #organicottonperiodunderwear #organicperiodpanties #nontoxicperiodunderwear #bestnontoxicperiodunderwear #organicottonperiodpanties #sustainablejungle
7 Organic Period Underwear & Panties For Non-Toxic Leak Protection Image by Rejeanne #organicperiodunderwear #organicottonperiodunderwear #organicperiodpanties #nontoxicperiodunderwear #bestnontoxicperiodunderwear #organicottonperiodpanties #sustainablejungle

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