The Welpr Rating is determined by a scoring formula. The formula takes into account the products safety, user satisfaction, and eco-ethical standing. Click here to learn more.
Best Non-Toxic Period Underwear in 2024
Updated:
Nov 18, 2024
Written by Camille May
Cofounder & Product Curator
+ 1 more
Medically reviewed by Olushola Awoyemi
PhD Environmental Toxicology
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What you should know when choosing non-toxic period underwear on Welpr:
- Only the cleanest products make it onto Welpr.
- We use a score called the Welpr Rating to rank each product.
- The Welpr Rating is based on math, not opinion, ensuring it's free from human bias.
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Find Non-Toxic Period Underwear
Third-party certifications are key indicators of a product's safety, ethics, and environmental impact. Click the icon to verify the certification.
Highlights aren't always verifiable, so you're trusting the brand when they say "lead free", etc. If the highlight icon is "clickable", it means we've verified the highlight.
User satisfaction is calculated using online reviews and a Bayesian average across all personal care and cosmetic products on Welpr.
Period Underwear - Neione
User Satisfaction
Est. Price
$19.99
Pros & Cons
Pros Mentioned
- Comfortable
- Affordable
- Effective
Cons Mentioned
- Crinkly
Ingredients
Ingredients can vary by product variation and may change at any time by the manufacturer. For the most complete and up-to-date list of ingredients, refer to the product packaging.
To analyze individual ingredients, use INCIDecoder.
Ingredients: 95% Modal, 5% Spandex
Third-party certifications are key indicators of a product's safety, ethics, and environmental impact. Click the icon to verify the certification.
Highlights aren't always verifiable, so you're trusting the brand when they say "lead free", etc. If the highlight icon is "clickable", it means we've verified the highlight.
User satisfaction is calculated using online reviews and a Bayesian average across all personal care and cosmetic products on Welpr.
Absorbent Boxer - Bambody
User Satisfaction
Est. Price
$22.99
Pros & Cons
Pros Mentioned
- Comfortable
- Absorbent
- Quality
Cons Mentioned
- Sizing
Ingredients
Ingredients can vary by product variation and may change at any time by the manufacturer. For the most complete and up-to-date list of ingredients, refer to the product packaging.
To analyze individual ingredients, use INCIDecoder.
Ingredients: Body: 95% Bamboo Rayon, 5% Spandex, Leak Proof Layer: Polymer Laminated Bamboo Rayon, Absorbent Layer: 80% Polyester, 20% Polyamide
Third-party certifications are key indicators of a product's safety, ethics, and environmental impact. Click the icon to verify the certification.
Highlights aren't always verifiable, so you're trusting the brand when they say "lead free", etc. If the highlight icon is "clickable", it means we've verified the highlight.
User satisfaction is calculated using online reviews and a Bayesian average across all personal care and cosmetic products on Welpr.
Absorbent Panty - Bambody
User Satisfaction
Est. Price
$13.99
Product Details
- Offers two styles: High Absorbency and Leak Proof.
- High Absorbency features a special absorbent layer for high discharge containment and greater confidence.
- High Absorbency provides greater breathability with a smaller coverage area.
- High Absorbency is ideal for high discharge scenarios, suitable for use during sports, gym, or yoga.
- Leak Proof style includes a full front-to-rear leak proof layer for extensive protection.
- Leak Proof style is less bulky and resembles regular underwear.
- Leak Proof is recommended for overnight use and general day wear for light to medium discharges.
Pros & Cons
Pros Mentioned
- Comfortable
- Absorbent
- Soft
Cons Mentioned
- Small
Ingredients
Ingredients can vary by product variation and may change at any time by the manufacturer. For the most complete and up-to-date list of ingredients, refer to the product packaging.
To analyze individual ingredients, use INCIDecoder.
Ingredients: Body: 95% Bamboo Rayon, 5% Spandex, Leak Proof Layer: Polymer Laminated Bamboo Rayon, Absorbent Layer: 80% Polyester, 20% Polyamide
Third-party certifications are key indicators of a product's safety, ethics, and environmental impact. Click the icon to verify the certification.
Highlights aren't always verifiable, so you're trusting the brand when they say "lead free", etc. If the highlight icon is "clickable", it means we've verified the highlight.
User satisfaction is calculated using online reviews and a Bayesian average across all personal care and cosmetic products on Welpr.
Reusable Period Underwear - Saalt
Certifications
User Satisfaction
Est. Price
$39.00
Product Details
- Designed for use during periods, bladder leaks, sweat, discharge, or as postpartum wear.
- Capable of absorbing up to 2 pads or 3 regular tampons worth of liquid.
- Can potentially replace up to 800 disposable pads, contributing to environmental conservation.
- 2% of each purchase is donated to provide period care to women and girls in need.
Pros & Cons
Pros Mentioned
- Comfortable
- Absorbent
- Feminine
Cons Mentioned
- Expensive
Ingredients
Ingredients can vary by product variation and may change at any time by the manufacturer. For the most complete and up-to-date list of ingredients, refer to the product packaging.
To analyze individual ingredients, use INCIDecoder.
Ingredients: RPET (Recycled Polyester)
Third-party certifications are key indicators of a product's safety, ethics, and environmental impact. Click the icon to verify the certification.
Highlights aren't always verifiable, so you're trusting the brand when they say "lead free", etc. If the highlight icon is "clickable", it means we've verified the highlight.
User satisfaction is calculated using online reviews and a Bayesian average across all personal care and cosmetic products on Welpr.
Washable Period Underwear - Lola
User Satisfaction
Est. Price
$19.99
Pros & Cons
Pros Mentioned
- Comfortable
- Absorbent
- Stretchy
Cons Mentioned
- Tight
Ingredients
Ingredients can vary by product variation and may change at any time by the manufacturer. For the most complete and up-to-date list of ingredients, refer to the product packaging.
To analyze individual ingredients, use INCIDecoder.
Ingredients: Body: 90% Cotton, 10% Lycra, Gusset: 100% Polyester, Core: 87% Polyester, 13% Polyamide, Leakproof Barrier: 100% Polyester With TPU Layer
Third-party certifications are key indicators of a product's safety, ethics, and environmental impact. Click the icon to verify the certification.
Highlights aren't always verifiable, so you're trusting the brand when they say "lead free", etc. If the highlight icon is "clickable", it means we've verified the highlight.
User satisfaction is calculated using online reviews and a Bayesian average across all personal care and cosmetic products on Welpr.
Hi-Waist Period Underwear for Women - THINX
User Satisfaction
Est. Price
$21.00
Pros & Cons
Pros Mentioned
- Comfortable
- Absorbent
- Quiet
Cons Mentioned
- Pricey
Ingredients
Ingredients can vary by product variation and may change at any time by the manufacturer. For the most complete and up-to-date list of ingredients, refer to the product packaging.
To analyze individual ingredients, use INCIDecoder.
Ingredients: Body: 84% Polyamide, 16% Elastane, Mesh Panels: 79% Polyamide, 21% Elastane, Body Liner: 95% Cotton, 5% Elastane, Gusset 1 (Wicking): 100% Polyester, Gusset 2 (Absorbent): 100% Polyester, Gusset 3 (Barrier): 100% Polyester, Coated W/ Breathable PU, Polyester, Polyurethane, Agion®, Lava XL-N®
Third-party certifications are key indicators of a product's safety, ethics, and environmental impact. Click the icon to verify the certification.
Highlights aren't always verifiable, so you're trusting the brand when they say "lead free", etc. If the highlight icon is "clickable", it means we've verified the highlight.
User satisfaction is calculated using online reviews and a Bayesian average across all personal care and cosmetic products on Welpr.
Bikini-Style Period Underwear - The Period Company
User Satisfaction
Est. Price
$12.00
Ingredients
Ingredients can vary by product variation and may change at any time by the manufacturer. For the most complete and up-to-date list of ingredients, refer to the product packaging.
To analyze individual ingredients, use INCIDecoder.
Ingredients: 100% Cotton
Our Product Rating System
First, Camille (co-creator of Welpr) hand picks cleaner product options from a variety of sources.
Next, we collect information about each product's safety, consumer satisfaction, and eco-ethical standing.
Finally, we run all this information through an algorithm that calculates the Welpr Rating.
Welpr Rating:
5.0/5
Part 1: Product safety
We evaluate safety information from 3rd party organizations (e.g. EWG, Made Safe, etc.). Instead of relying solely on any one of these companies for safety information, we assess all of them.
Part 2: Consumer satisfaction
We scour the web for consumer ratings and reviews to verify products are not only cleaner options, but also effective. Products can either be Above Average, Average, or Below average for their respective category (e.g. cleaning products).
Part 3: Ethics & Environment
When you buy a product, you’re supporting that company with your dollars. We believe it’s important to support ethical companies, so we pool together certifications that verify a company's ethics and environmental impact.
Common Harmful Chemicals in Period Underwear
Chemical Name
Why it’s harmful
Fluorine
Fluorinated compounds, including Polytetrafluoroethylene (PTFE), are used in cosmetics like foundation, powder, mascara, and anti-aging products. These compounds are known for their stability and are challenging to break down in the environment, with some found in remote regions. PTFE, often used for its smooth finish, can be derived from perfluorooctonoic acid (PFOA), which might leave residual PFOA in the final product. PFOA has been associated with cancer, mammary cancer, reproductive toxicity, endocrine disruption, and environmental concerns. While research on PTFE's direct cancer-causing potential is inconclusive, PFOA, a contaminant in PTFE-containing products, has health implications. PFOA has been detected in adults' body fluids worldwide and has links to mammary gland changes, endocrine disruption, delayed puberty in girls, and reproductive toxicity, including low birth weight. Additionally, it may affect the carcinogenicity of other chemicals when exposed together.
Perfluorooctane Sulfonic Acid (PFOS)
Perfluoroalkyls are synthetic chemicals known for their ability to resist oil, grease, and water, primarily used in surface protection products and fire-fighting foams. The two most abundant perfluoroalkyls are perflurooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS). Studies have observed liver enlargement and elevated cholesterol in animals given high doses, and the presence of PFOS in various populations has raised environmental and health concerns, leading to the phase-out of some PFOS-based chemicals. Tests have shown a range of health effects in animals, including eye irritation, liver changes, teratogenic effects, and more, with no evidence of mutagenicity. However, no substantial link has been found between PFAS concentrations and increased cardiometabolic risk measures in human studies, and there are no known health effects from exposure when used as intended.
Perfluorooctanoic Acid (PFOA)
Perfluorooctanoic acid (PFOA) is primarily used to create salts that aid in the processing of producing fluoropolymers and fluoroelastomers. It also acts as a surfactant in firefighting foams, an intermediate in creating fluoroacrylic esters, and a crucial aspect in manufacturing Teflon and similar chemicals. However, exposure to PFOA can lead to adverse health effects, including alterations in thyroid hormone levels, lower fertility, an increased risk of cerebrovascular disease, higher cholesterol and triglyceride levels, a possible link to ADHD, smaller abdominal circumference and birth length in infants, an increased risk of common cold and gastroenteritis in children, and potentially prostate cancer mortality. Studies on animals have indicated possible liver and brain dysfunction, carcinogenicity, and reproductive and developmental toxicity. Ecotoxicity studies found alterations in genes linked to lipid metabolism, hormone action, immune responses, and mitochondrial functions in rare minnows exposed to PFOA.
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