The Best Non-Toxic Period Underwear Without PFAS


Say Goodbye to Harsh Chemicals with the Best Non-Toxic Period Underwear & Stay Safe and Sustainable. Elevate Your Period Game with the Best Non-Toxic and Organic Period Panties

Period underwear is becoming increasingly popular due to its convenience, sustainability, and practicality. Unlike disposable pads and tampons, natural organic period underwear can be washed and reused, making it an eco-friendly option for managing menstruation. Some people prefer to use organic period panties as an alternative to tampons or menstrual cups, which collect the menstrual blood inside the vagina. 

Natural period underwear is also easy for beginners to use and less intimidating for teenagers and preteens. When searching for the best non-toxic period underwear, it’s essential to look for products that are free of harmful chemicals such as PFAS. For those seeking an all-natural option, the best organic period underwear may be the ideal choice. 

How PFAS in Period Underwear is a Cause for Concern?

Period underwear containing PFAS (Per- and polyfluoroalkyl substances) has come under scrutiny due to its potential health risks. Recent scientific research indicates that exposure to certain levels of PFAS can cause adverse effects on reproductive health, including decreased fertility and high blood pressure during pregnancy. Additionally, PFAS exposure can lead to developmental delays and other health complications in children, and an increased risk of certain cancers, such as prostate, kidney, and testicular cancer.

Moreover, PFAS can interfere with the body’s immune system and natural hormones, leading to a reduced ability to fight infections and other health issues. These findings have raised concerns about the safety of using period underwear containing PFAS and the potential long-term health consequences associated with exposure to this chemical.

Therefore, it is crucial to consider the potential health risks associated with PFAS exposure and make informed decisions when choosing menstrual products. It is essential to prioritize products that are free of harmful chemicals to safeguard our reproductive health and overall well-being.

Choosing Safe and Comfortable Panties

When it comes to choosing panties, the material is crucial, especially since they are worn in a sensitive area. To ensure safety, it is recommended to opt for panties made from non-toxic substances. Organic cotton is an excellent choice, but non-organic cotton is still preferable to synthetic materials like polyester or nylon.

The Benefits of Organic Cotton for Menstrual Underwear

For reusable menstrual underwear, cotton is the best material to use due to its absorbency and breathability. Organic cotton is the preferred option, but any cotton material is better than synthetic alternatives. Bamboo viscose is also a suitable natural and renewable material, although it cannot be classified as organic.

Why Polyester is Not Recommended for Underwear

Polyester, which is made from petrochemicals, is not recommended for underwear. It is not breathable, which makes it unfavorable for a pair of underwear. Instead, it is best to opt for natural materials like cotton or bamboo viscose.

The Role of Spandex or Elastane in Underwear

Spandex or Elastane is a synthetic fiber commonly used in the waistband to provide stretch. Although it is a synthetic fiber, it is commonly found in all types of underwear, making it a necessary component for comfortable and well-fitting panties.

Say Goodbye to Toxins: The Best Non-Toxic Period Underwear

So, if you are Looking for the best non-toxic and organic period underwear without PFAS? Fortunately, there are now many sustainable options available on the market that prioritize responsible sourcing, ethical production, and inclusive sizing.

Whether you’re using them as your primary protection or as backup for leaks, these organic period panties will keep you feeling safe and secure while also being eco-friendly. So, if you’re searching for the best period underwear without PFAS or the best organic period underwear, look no further than these top picks.


WUKA is a renowned British brand that specializes in sustainable period underwear for people of all ages, from teenagers to adults. Their period pants are made from organic cotton that is ethically sourced and manufactured, ensuring that they are both environmentally friendly and comfortable to wear. With a highly absorbent layer, these period pants can be worn for up to eight hours without any inconvenience or discomfort.

WUKA is committed to fighting plastic pollution globally and donates a portion of its sales to this cause. They have also received PFAS certification, which guarantees that their products are free from harmful chemicals that are often found in disposable pads and tampons.

WUKA’s organic period panties have become a cult favorite due to their ease of use and practicality. Made from GOTS-certified organic cotton and chemical-free dyes, these period panties are PFAS-free and come in a variety of styles, including hipster, midi, and full brief. They are designed with four layers of protection, including a moisture-wicking layer, an absorbent layer, a leak-proof layer, and an outer layer, ensuring maximum protection and comfort.

WUKA’s sustainable period underwear is not only made from GOTS-certified organic cotton and recycled materials, but it also comes in inclusive sizing and different levels of absorbency. They are ethically manufactured and sourced, and you can wear them for up to eight hours without any added chemicals, silver treatments, or anti-bacterials.

The material of the underwear includes natural bamboo, organic cotton, Tencel modal, and Econyl, which is made from plastic waste from our oceans. These are biodegradable fibers, making them a sustainable choice for the environment.

The lining material of the Wuka period underwear is made from a blend of cotton and polyester, or Tencel modal, or organic cotton. This provides a comfortable and breathable option for wearers. The product does not use any antimicrobial chemicals, making it a great choice for those looking for a non-toxic and natural option.

Wuka period underwear has an absorbency of 4 tampons worth and a lifespan of at least 2 years. Additionally, it is certified by OEKO-TEX and GOTS, ensuring that it meets high standards for environmental and social responsibility.

The website of WUKA conducts frequent testing on their products to detect the presence of PFAS. Luckily, their results have shown no signs of this harmful chemical. If you’re looking for the best sustainable period underwear that is eco-friendly and stylish, WUKA’s period pants are the perfect choice. 

The Best Non-Toxic Period Underwear without PFAS Inner Wear Talk


Modibodi is a brand that is taking on the challenge of breaking down the societal taboo surrounding menstruation. Recently, they faced some controversy when their advertisement featuring menstrual blood was banned from social media. However, this setback has not deterred Modibodi from their mission to promote menstrual health and hygiene awareness. They offer a range of natural period products, including period panties made from sustainable materials like bamboo and merino wool. Furthermore, Modibodi ensures that the packaging of their products is eco-friendly and compostable.

For overnight use, their 24-hour maxi period panty is perfect. Additionally, their new biodegradable line offers bikini and full brief options. Modibodi caters to women’s needs during their menstrual cycle by offering various absorbency levels and cuts, including bikinis, thongs, boyshorts, and more. They also provide period swimwear, sleepwear,  and activewear which allows women to continue with their daily routines without any concerns about leakage.

Their non-toxic period panties which are GOTS-certified and the material of the underwear is 95% bamboo viscose and 5% spandex, which makes it breathable and stretchy. The lining material includes merino wool, polyester, and polyamide, and the product has an absorbency of 1-4 tampons worth.

One key advantage of Modibodi period underwear is that it uses an antimicrobial treatment to eliminate bacteria and odor without the use of nanotechnology. This treatment is registered with the Environmental Protection Authority, ensuring that it is safe and effective. Additionally, the product has a lifespan of at least 2 years, making it a cost-effective and environmentally-friendly option.

Modibodi is proud to be the original organic period panties brand, offering leak-proof underwear that is PFAS-free, sustainable, and natural. They have even developed biodegradable period and pee-proof brief undies, making them the first company to introduce this innovative product. Modibodi provides a diverse range of fun prints and striking, vivid colors that cater to every taste and body shape, featuring a selection of styles, such as high-leg cuts, hi-waisted bikinis, full briefs, and more, with options available up to 6XL!

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Period Brand is a trusted and reliable company that produces sustainable and affordable period underwear. Their products are designed to cater to the needs of individuals who prioritize comfort and safety during menstruation. The Period Brand’s underwear is made of 95% OEKO-TEX certified organic cotton and 5% polyester, making them free of harmful substances and gentle on the skin. Notably, their underwear is also PFAS-free, making them a safe and secure option for those who are concerned about the potential health risks associated with PFAS exposure.

Additionally, Period Brand offers a variety of color options, including pink, and designs that are perfect for teens. Their products are reasonably priced. Whether you are looking for organic period underwear, period underwear without PFAS, or teen period underwear, Period Brand has got you covered. Overall, the company provides a reliable and sustainable solution to traditional menstrual products, making it a great option for anyone looking to reduce their carbon footprint and improve their menstrual experience.

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In 1993, Aisle became the pioneer in modern reusable period products, and their extensive experience has enabled them to design the most effective solutions. Aisle offers period underwear in four distinct styles and a wide range of sizes, all of which are made from sustainable and recycled materials.

Each pair includes a bonus absorbency booster, allowing it to hold up to an extra four tampons’ worth, making it ideal for heavier days. As a certified B Corp, Aisle is committed to promoting menstrual hygiene through social impact projects.

Aisle offers a range of period panties that are lightweight, moisture-wicking, leakproof, and non-toxic, making them perfect for conscious menstrual care. They can hold up to 11 regular tampons’ worth, and their PFAS-free design includes a bonus absorbency booster for heavier days, holding an extra four tampons’ worth. The brand’s collection includes gender-inclusive styles such as boxer-inspired shorts, pajama, boyshorts  and hiphuggers.

Aisle’s period underwear is designed to hold up to eight tampons’ worth of liquid, and they offer the option to add a booster for additional liquid capacity, depending on your flow. They come in various cute styles and colors, are machine-washable, and are made from soft fabrics to provide maximum comfort during your period. Aisle has conducted repeated tests on its products for PFAS and has found no detectable levels of the substance in any of its underwear, based on a detectable limit of one part per million.

Aisle provides an impact report for each style of underwear, enabling customers to see the effects of their purchase. If you’re looking for affordable organic period panties, Aisle is a clear choice. Their commitment to sustainable materials, gender-inclusive designs, and social impact initiatives make them an excellent option for those who prioritize ethical and conscious menstrual care. Aisle period underwear receives positive reviews for their innovative approach to menstrual care and dedication to ethical practices.

With Aisle’s boost period underwear, you can enjoy leak-free, comfortable periods while making a positive impact on the environment and society.



Bambody period underwear is an excellent choice for those seeking a more sustainable and comfortable option during menstruation. Made from a combination of bamboo fabric, cotton, and spandex, Bambody underwear is designed to be both breathable and moisture-wicking. What’s more, an independent lab study found that Bambody’s underwear contains no traceable amounts of PFAs, making it a safe and reliable option for consumers concerned about potentially harmful chemicals. While the inner layer is made from 80% polyester and 20% nylon, Bambody does not use any antimicrobial chemicals in their products. With absorbency equivalent to six tampons, these period panties can provide peace of mind for up to 18 months of use.

Although the inner lining is not made from cotton, the company is in the process of obtaining an OEKO-TEX certification, a globally recognized certification that ensures the product is free of harmful chemicals and safe for use, which assures consumers of the product’s safety and environmental sustainability. Overall, Bambody period panties offer a comfortable and environmentally conscious solution for those looking to make a positive impact on their menstrual cycle.


Saalt’s sustainable period underwear provides the perfect solution for leakage protection without the added bulk. These comfortable and soft undergarments are so thin that they feel and look like regular panties, but they have an added benefit of being made from recycled water bottles.

Saalt offers an impressive range of reusable period products, including cups and underwear. The Saalt period underwear is specifically designed to effectively absorb liquids for up to 12 hours, providing you with worry-free comfort during work, outings, or sleep. What’s more, Saalt’s products do not contain PFAS, and the company conducts regular tests to ensure that their customers are not exposed to this harmful substance.

In fact, when Saalt discovered that one of their products tested positive for PFAS during a pre-launch test in 2020, they immediately contacted their supplier and redeveloped the material. As a result, the launch was delayed by about five months until the product passed all tests and was confirmed as PFAS-free. This level of commitment to their products ensures that Saalt’s underwear is a safe and healthy option for their customers.

Based on the information provided, the Saalt Period Underwear is made of 80% recycled polyester and 20% elastane, and its lining material is composed of 92% recycled polyester and 8% spandex. It is not specified whether the underwear contains any antimicrobial chemicals.

In terms of absorbency, the Saalt Period Underwear is stated to be able to hold 1-3 tampons’ worth of fluid. As for its lifetime, the exact duration is not specified, but it is noted that the underwear can last for several years.

Additionally, the Saalt Period Underwear is certified by OEKO-TEX, which is a worldwide independent testing and certification system for textile products.

However, an independent study found 10 ppm of fluorine in Saalt’s period panties, which are made from polyester. Despite this, Saalt’s leak-proof period underwear and other products continue to provide a sustainable and comfortable alternative to traditional menstrual products.

Proof’s period underwear

Proof is a sustainable company that specializes in manufacturing period underwear that is leak-proof. In a recent press release, the company announced that their Leak-Loc technology, which is patented, can effectively contain liquid up to 5 tampons worth. This innovative technology is designed to handle any type of leak, whether it’s bladder-related, caused by sweat, discharge, or spotting. Furthermore, it can hold up to 5 tampons or 10 teaspoons of liquid, while also fighting odors and wicking away moisture all day long.

The Leakproof Hipster Underwear from Proof is a remarkable product that offers both flexibility and support, with an absorbency level equivalent to five tampons. The panties are made from antimicrobial fibers that help to reduce unpleasant odors and prevent bacterial growth. You can easily select the leak type, flow level, and style of your choice, and let Proof take care of the rest.

As per the company’s claims, each set of Proof period underwear undergoes rigorous testing for PFOA/PFAS, lead, and phthalates to ensure their safety. Additionally, the product is compliant with Prop 65 regulations, indicating that it is free from any chemical substances that may result in cancer, birth defects, or other reproductive disorders.

Proof’s period underwear is not only leak-proof, but it’s also eco-friendly and sustainable, with no PFAS included. As a result, it’s one of the best options for individuals seeking environmentally-friendly period products. By choosing Proof’s sustainable period underwear, you’ll be making a responsible choice that prioritizes your comfort, health, and the well-being of the planet.

Budget-friendly eco-friendly period underwear alternatives from brands with untested PFAS levels

Although certain brands listed below may not have published reports on PFAS testing, they still offer eco-friendly alternatives for reusable period underwear that are budget-friendly and won’t contribute to the accumulation of waste in landfills.

Love Luna

Love Luna is a well-known brand that offers comfortable and eco-friendly underwear options for women during their periods. While an independent lab study did not cover Love Luna’s products, it’s unclear if they contain PFAs or not. However, the brand uses high-quality materials in their products, including cotton and elastane for full brief and midi styles, and microfiber nylon and elastane for bikinis. 

The lining material in Love Luna’s underwear is 100% cotton, and they are free of antimicrobial chemicals, making them safe and healthy for everyday use. These undies have an absorbency of 2-4 tampons worth, making them perfect for medium to heavy flows. While the exact lifetime of the products is not specified, they can last for several years, making them a great investment for women looking for long-term and sustainable solutions. 

Tom Organic

Tom Organic is a brand that offers a range of organic and sustainable menstrual products, including their period underwear. Made from 95% organic cotton and 5% elastane, Tom Organic period underwear is gentle on the skin and the environment. Unlike some other menstrual products that may contain harmful chemicals like PFAs, Tom Organic makes no claims about the use of such substances in their products.

Additionally, their period underwear is free from antimicrobial chemicals, making it a safer choice for those with sensitive skin. With a absorbency of two tampons worth and a lifetime of approximately 40 washes, Tom Organic period underwear is a reliable and convenient option for managing menstrual flow. It is also certified by the Global Organic Textile Standard (GOTS) and the Australian Organic Standard, ensuring that it meets strict sustainability and ethical standards.

Get Rael

Get Rael is a brand that offers an innovative and eco-friendly solution to traditional menstrual products. Their period underwear is made from OCS, USDA certified, and non-GMO cotton, which ensures that the material is of high quality and free from harmful chemicals. The lining material is also made of 100% cotton absorbency layer, making it comfortable and breathable. 

Additionally, the period underwear has an absorbency of 3 tampons worth, making it suitable for heavy flow days. Although the brand does not specify the exact lifetime of their undies, they can last several years with proper care. While they do not have reports on PFAS testing available yet, they are committed to using safe materials in their products.


Knix period underwear is a top-rated brand for women who want comfortable and effective period protection. Although there are no available reports on PFAS testing for their products, Knix High Rise underwear was lab tested and found to have 373 ppm fluorine. This means that they take their product safety seriously and are transparent about their testing processes.

Knix underwear is made from various materials, such as 77% nylon and 23% lycra for CoreLove and leakproof undies, or 47% cotton, 47% modal, and 6% spandex for cotton modal undies. The lining material is 86% cotton, 10% spandex, and 4% carbon, while the gusset liner is made from natural moisture-wicking and antimicrobial materials to prevent yeast infections and bacteria growth.

Knix period underwear can absorb up to 1-8 tampons worth of fluid and has a lifespan of 8-12 months. Plus, Knix is OEKO-TEX certified, ensuring that their products are free from harmful substances. Choose Knix period underwear for a comfortable and safe period experience.


Sustain Period Underwear is made from 95% organic cotton and 5% spandex, Sustain Period Underwear is both comfortable and sustainable. While Sustain has not yet released PFAS testing reports for their product, they use a lining material of polyurethane laminate topped with 100% organic cotton.

Unlike some other period, underwear brands, sustain does not use any antimicrobial chemicals in their products. Sustain Period Underwear has an absorbency level of 1 tampon worth and has a lifetime of 2-3 years. The product has also been certified by OEKO-TEX Standard 100 and Global Organic Textile Standard (GOTS), ensuring that it is free from harmful substances and is made from organic materials. 


Thinx is a popular brand of period-proof underwear that offers a sustainable and comfortable alternative to traditional menstrual products. While there is no PFAS testing report yet available for their product, the materials used in their underwear vary depending on the style. Classic undies are made of 89% nylon and 11% elastane, while organic cotton undies are made of 95% organic cotton and 5% elastane. The air undies, on the other hand, are made of 78% polyamide and 22% elastane. 

The lining material also varies depending on the style, with classic undies featuring 100% polyester and middle breathable PUL, and organic cotton and air undies featuring 95% cotton, 5% elastane, and middle breathable PUL. Thinx underwear also features a wicking layer with an application of non-migratory silver that controls odor and the spread of bacteria. With an absorbency of 3-5 tampons worth, Thinx underwear offers a reliable and eco-friendly option for period protection. Additionally, Thinx underwear is certified by OEKO-TEX Standard 100, ensuring that their products are free from harmful substances.

Ruby Love

Ruby Love Period Underwear is made from 80% interlock twisted yarn cotton and 20% spandex, Ruby Love Period Underwear is both soft and stretchy. While the brand has not yet released PFAS testing reports for their product, their lining material is made from interlock twisted yarn cotton, which provides excellent absorbency and comfort.

With absorbency levels ranging from 2 to 6 tampons worth, Ruby Love Period Underwear is a reliable and convenient alternative to traditional period products. With a lifetime of 2-3 years, Ruby Love Period Underwear is both cost-effective and sustainable. Although Ruby Love does not have any certifications, their period underwear has received high praise from customers who appreciate its comfort and reliability. If you’re looking for comfortable and convenient period underwear, Ruby Love Period Underwear is an excellent option to consider.


TomboyX is a popular brand known for its inclusive and comfortable underwear. Their product range includes underwear for all genders, with sizes ranging from 3XS to 6XL, making it accessible to everyone. TomboyX offers a range of underwear, including period underwear that has absorbent coverage and can hold up to 4 tsp of liquid. 

TomboyX period underwear is made of OEKO-TEX certified cotton and spandex, making it safe for your skin and the environment. However, TomboyX has not yet released PFAS testing reports for their product. Overall, if you’re looking for comfortable, sustainable, and inclusive underwear, TomboyX is a great choice.


June is a period underwear brand that offers a wide range of sizes from S to XXL. While the brand has not yet released PFAS testing reports, their products are made from nontoxic and natural materials. In addition, June’s underwear is free from azo dyes, making them safe and gentle on the skin.

Beyond their commitment to creating safe and sustainable products, June also gives back to the community through various charitable initiatives. Whether you’re looking for reliable and comfortable period underwear or want to support a brand that prioritizes ethical and eco-friendly practices. 


Cora offers a range of menstrual products, including Cora underwear and Cora period underwear, which are available in XS–XXL sizes. Cora is committed to sustainability and has earned certification as a B Corp, reflecting its dedication to social and environmental responsibility.

Additionally, the company’s OEKO-TEX certified cotton ensures that its products are free of harmful substances. While Cora has not yet released PFAS testing reports, it is important to note that the company takes the safety of its customers seriously and is dedicated to transparency in all its practices. With its commitment to sustainability and social responsibility.


By choosing non-toxic period underwear without PFAS, you are making a responsible and informed decision for both your own health and the health of the planet. These products are made with materials that are free from harmful chemicals, ensuring that you are not exposing your body to any unnecessary risks. Additionally, these options are often more sustainable and eco-friendly, using materials such as organic cotton and bamboo that are biodegradable and renewable.

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