The Best Non-Toxic Menstrual Cups of 2026
All 16 menstrual cups PFAS Authority has graded reach its 70 point pass mark for PFAS and other toxins, as of October 2026. The highest graded is Diva Cup DivaCup Model 0 at 100 out of 100.
Every grade below is built from published materials, ingredient lists, certifications and brand disclosures, scored on one public rubric and ranked best-graded first. Each score links to the full breakdown of what earned it, and the numbers across the whole dataset are published too.
Are menstrual cups non-toxic?
16 of the 16 menstrual cups we graded clear our screen and 0 do not. Non-toxic is not a defined or regulated term, so what we can tell you is what our graders recorded. Beyond PFAS, the hazards found or left unruled-out on menstrual cups in this category are artificial dyes, undisclosed fragrance, microplastics, VOCs and off-gassing, heavy metals. The highest graded here is Diva Cup DivaCup Model 0 at 100 out of 100.
Quick picks
A second brand to consider
Flex Cup Menstrual Slim Pack of 1The best grade here from a brand other than the winner
70 Good
Why Diva Cup DivaCup Model 0 wins, and what it beats
Every grade on this page is one sum. A category starts from a baseline, each disclosed material or coating adds risk points, and each thing the brand or a third party has published takes them away. Below is that sum for the winner, then for 1 product it beats, so you can see exactly where the 30 points between the top and the bottom of this menstrual cups ranking come from.
The winner
Made of medical-grade silicone.
- +10Category baseline. The starting point for this type of product, before anything specific to this product is counted.
- -10Base material not linked to PFAS. The main material recorded for this product is not one associated with PFAS.
- -30Third-party PFAS-free verification. A third party reports verifying this product as PFAS-free.
- -40No PFAS found in lab test. No PFAS detected in independent testing.
What the grade does not fix. Nothing specific to this product adds risk, so what remains is the category baseline that every product here starts from, and our graders recorded 3 other hazards on it. See the full breakdown.
What it beats, and why
What puts it behind. No PFAS disclosure, +15 points. No public statement from the brand about PFAS in this product. The winner carries no such factor.
Made of Medical-grade silicone.
- +25Category baseline
- +15No PFAS disclosure
- -10Base material not linked to PFAS
30risk points, a grade of 70
No product on this page was physically tested by us. Every number above comes from published materials, ingredient and coating disclosures, certifications and brand statements, scored on one public rubric. Formulations change without notice, so check the current product listing before buying.
What to watch for in menstrual cups
Beyond the PFAS grade, these are the things our graders recorded on the 16 menstrual cups in this category. We assess from materials, brand statements and published research. We do not lab-test.
- Artificial dyes
Synthetic colours added to food, cosmetics and textiles, most of them petroleum derived.
Found on 1 of these menstrual cups. FDA
- Undisclosed fragrance
A single word on a label that can stand for dozens of undeclared ingredients, protected as trade secret.
Plausible but unconfirmed on 4 more, meaning nobody has ruled it out. FDA
- Microplastics
Plastic fragments small enough to shed from a product into food, water or air without anyone seeing it.
Plausible but unconfirmed on 3 more, meaning nobody has ruled it out. EPA
- VOCs and off-gassing
Volatile compounds that evaporate out of a material at room temperature, which is what a new product smell is.
Plausible but unconfirmed on 1 more, meaning nobody has ruled it out. EPA
- Heavy metals
Metals such as antimony, nickel and chromium migrating from a material into what touches it.
Plausible but unconfirmed on 1 more, meaning nobody has ruled it out. ATSDR
The safest menstrual cups we graded, lowest PFAS risk first
- 1
Third-party verified
- medical-grade silicone
- A third party reports verifying it as PFAS-free
- Silicone degradation or leaching from improper cleaning agents
3 hazards checked on this product, all on its full breakdown.
- 2
- Medical-grade silicone (body); no Teflon-family coating coatings reported
- We found no PFAS statement from the brand
- Silicone degradation and surface microtearing
3 hazards checked on this product, all on its full breakdown.
- 3
- Medical-grade silicone (body); no reported coatings or treatments
- We found no PFAS statement from the brand
- Biofilm and bacterial growth (maintenance-dependent)
4 hazards checked on this product, all on its full breakdown.
- 4
- Medical-grade silicone
- We found no PFAS statement from the brand
- Bacterial or mold colonization from poor maintenance
2 hazards checked on this product, all on its full breakdown.
- 5
- Medical-grade silicone, no added Teflon-family coating
- We found no PFAS statement from the brand
- Residual manufacturing compounds / silicone impurities
2 hazards checked on this product, all on its full breakdown.
- 6
- Medical-grade silicone
- We found no PFAS statement from the brand
- Bacterial or fungal colonization
2 hazards checked on this product, all on its full breakdown.
- 7
- Medical-grade silicone (primary); no reported Teflon-family coating or Teflon-type coating
- We found no PFAS statement from the brand
- Bacterial colonization or biofilm growth
3 hazards checked on this product, all on its full breakdown.
- 8
- Medical-grade silicone
- We found no PFAS statement from the brand
- Bacterial or mold colonization from improper storage or cleaning
4 hazards checked on this product, all on its full breakdown.
What the evidence says about PFAS in menstrual cups
Menstrual cups are generally made from silicone or rubber, and the published testing we found did not flag them, though it gives no product-by-product results. In Notre Dame’s 2023 screening, the lead researcher said menstrual cups, like tampons, did not seem to contain fluorine, and a 2025 follow-up that included menstrual cups found most reusable menstrual products showed no sign of intentional PFAS. Minnesota’s ban on PFAS in menstrual products covers menstrual cups.
- Regulatory filingThe US FDA says menstrual cups are generally made from silicone or rubber. US FDA ↗
- Independent testIn Notre Dame’s 2023 screening of period products, the lead researcher said tampons did not seem to contain fluorine, and that the same was true of menstrual cups and the layers of pads that touch the skin. American Chemical Society (archived page) ↗
- Independent testNotre Dame’s 2025 study screened more than 70 reusable menstrual products, including menstrual cups, and characterized 71 percent of samples as not intentionally fluorinated. University of Notre Dame ↗
- Regulatory filingMinnesota’s ban on intentionally added PFAS covers menstruation products including menstrual cups. Minnesota Pollution Control Agency ↗
- Regulatory filingCalifornia bans the manufacture and sale of menstrual products that contain regulated PFAS. California Legislature ↗
Sources checked September 14, 2026. A brand statement is the company’s own claim, which we report but have not verified. Our grades are model-based estimates, not lab tests.
Questions people ask about menstrual cups
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Top-graded picks in the categories readers replace first, every one scored on the same rubric.
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product, all on its full breakdown.
Avocado
Vegan Mattress
- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
All the menstrual cups that pass, side by side
Sorted by score. A higher score means lower PFAS risk. Scored against 4 hazards that apply to this category.
| # | Menstrual Cups | Score | Rating | Made of | Key concern |
|---|---|---|---|---|---|
| 1 | Diva Cup DivaCup Model 0 | 100 | Excellent | medical-grade silicone | Silicone degradation or leaching from improper cleaning agents |
| 2 | DIVA Cup Model 2 | 70 | Good | Medical-grade silicone (body); no fluoropolymer coatings reported | Silicone degradation and surface microtearing |
| 3 | Diva Cup #1 Pre-Childbirth | 70 | Good | Medical-grade silicone (body); no reported coatings or treatments | Biofilm and bacterial growth (maintenance-dependent) |
| 4 | Flex Cup Menstrual Slim Pack of 1 | 70 | Good | Medical-grade silicone | Bacterial or mold colonization from poor maintenance |
| 5 | Flex Cup Starter Bundle | 70 | Good | Medical-grade silicone, no added fluoropolymers | Residual manufacturing compounds / silicone impurities |
| 6 | Flex Reusable Menstrual Cup | 70 | Good | Medical-grade silicone | Bacterial or fungal colonization |
| 7 | Lena Menstrual Cup | 70 | Good | Medical-grade silicone (primary); no reported fluoropolymer or PTFE coating | Bacterial colonization or biofilm growth |
| 8 | Lena Menstrual Cup - Large-Pink | 70 | Good | Medical-grade silicone | Bacterial or mold colonization from improper storage or cleaning |
The verdict on menstrual cups
Diva Cup DivaCup Model 0 grades 100 out of 100, the highest here. It is medical-grade silicone. A third party reports verifying it as PFAS-free.
Choose DIVA Cup Model 2 instead if you want a second option at 70 out of 100, medical-grade silicone (body); no teflon-family coating coatings reported.
We hold no price data, so nothing here is a budget recommendation. Grades are model-based assessments from published materials and disclosures, not laboratory tests.
The menstrual cups we would skip
Lowest scoring in this category, worst first, with the reason.
- 70DIVA Cup Model 2Good
Silicone degradation and surface microtearing
- 70Diva Cup #1 Pre-ChildbirthGood
Biofilm and bacterial growth (maintenance-dependent)
- 70Flex Cup Menstrual Slim Pack of 1Good
Bacterial or mold colonization from poor maintenance
What we check on menstrual cups
- BPA & bisphenols. Plastic-hardening chemicals linked to hormone disruption. FDA
- Phthalates. Plastic softeners studied for endocrine effects. ATSDR
- Microplastics. Tiny plastic particles that shed from products into food and water. EPA
- Endocrine disruptors. Chemicals that interfere with the body’s hormone system. NIEHS
Full point-by-point rubric on the methodology page.
The menstrual cups brands we found no PFAS statement from
We found no PFAS statement from 4 of the brands here. That is our research, not proof a brand has never said anything, and it is not evidence of harm. It is why none of them score well on disclosure.
Diva Cup, Flex, Lena, Saalt.
The brands that have published something, and what each of them actually said, are in our record of what every brand has said about PFAS.
Common questions about PFAS in menstrual cups
Are menstrual cups PFAS free?
All 16 menstrual cups PFAS Authority has graded reach its 70 point pass mark for PFAS and other toxins, as of October 2026. The highest graded is Diva Cup DivaCup Model 0 at 100 out of 100. The lowest graded is DIVA Cup Model 2 at 70 out of 100.
Are menstrual cups non-toxic?
16 of the 16 menstrual cups we graded clear our screen and 0 do not. Non-toxic is not a defined or regulated term, so what we can tell you is what our graders recorded. Beyond PFAS, the hazards found or left unruled-out on menstrual cups in this category are artificial dyes, undisclosed fragrance, microplastics, VOCs and off-gassing, heavy metals. The highest graded here is Diva Cup DivaCup Model 0 at 100 out of 100.
Which are the safest menstrual cups to buy?
On our grades, Diva Cup DivaCup Model 0 at 100 out of 100, which we band as Excellent. Then DIVA Cup Model 2 at 70. These are model-based assessments from published materials, ingredient lists, certifications and disclosures, not laboratory tests, so treat them as the lowest risk we can evidence rather than a safety guarantee.
Which menstrual cups grade best for PFAS?
Diva Cup DivaCup Model 0, at 100 out of 100, which we band as Excellent. It is medical-grade silicone. The runner up is DIVA Cup Model 2 at 70.
Which menstrual cups should I avoid?
The three lowest scoring we hold are DIVA Cup Model 2 at 70, Diva Cup #1 Pre-Childbirth at 70, Flex Cup Menstrual Slim Pack of 1 at 70. The problem with the first is that the main material recorded for this product is not one associated with PFAS.
How can you tell if menstrual cups contain PFAS?
In this category we check for BPA & bisphenols, phthalates, microplastics, endocrine disruptors. Plastic-hardening chemicals linked to hormone disruption. Language like stain resistant, water repellent or easy release usually means fluorinated chemistry even when PFAS is never printed on the box.
Which menstrual cups brands have not published a PFAS statement?
We found no PFAS statement from 4 of the brands we scored in this category, including Diva Cup, Flex, Lena, Saalt. That is what our research turned up, not proof a brand has never said anything, and a missing statement is not evidence of harm. It is the reason those brands cannot score well on disclosure.
Do you lab test menstrual cups?
No. We score from published ingredient lists, materials, certifications, disclosures and third party lab results where they exist. Where a product has been independently tested we use that result and say so.
More beauty and personal care categories we have graded
Same rubric, same scale. These are the categories closest to menstrual cups.
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Does a particular brand of menstrual cups have PFAS?
We also wrote this up at length. PFAS in Menstrual Cups, Which Brands Grade Best and Worst
Want to filter the whole category yourself? Browse all 16 menstrual cups.