Menstrual products are in contact with some of the most absorptive tissue in the body. Vaginal mucosa is highly permeable, which means chemicals in tampons and pads are absorbed more efficiently than chemicals applied to regular skin. Despite this, the FDA classifies menstrual products as “medical devices” rather than cosmetics or drugs, which means manufacturers aren’t required to disclose their full ingredient lists.
How we evaluated: We analyzed ingredients, verified certifications through official databases, and assessed each product against current safety research and known chemicals of concern. Full methodology
That’s been changing under public pressure, and more brands now voluntarily list ingredients. But the major conventional brands, Tampax, Always, Kotex, still use materials that raise legitimate safety questions. Based on NonToxicLab’s review of the available research, organic cotton products with full ingredient transparency are the safer choice.
This guide covers tampons, pads, menstrual cups, and period underwear so you can find the right option for your body and preferences.
What’s in Conventional Period Products
Tampons
Conventional tampons from Tampax and Kotex are typically made from a blend of rayon and non-organic cotton. Rayon is a semi-synthetic fiber made from wood pulp, and its production involves chemical processing. The bleaching process (elemental chlorine-free or totally chlorine-free) can leave behind trace amounts of dioxins, which are persistent organic pollutants and known carcinogens.
Dr. Philip Landrigan has pointed out that while individual exposures to dioxins from tampons are very small, the cumulative exposure over a lifetime of menstruation (roughly 11,000 tampons for the average person) makes even trace contamination worth considering.
Conventional tampons may also contain pesticide residues from non-organic cotton and synthetic additives for absorbency. Some brands add fragrance, which has no medical purpose and introduces undisclosed chemicals to a highly absorptive area.
Pads
Conventional pads have additional concerns beyond cotton and rayon. The plastic backing, adhesive strips, and absorbent core can contain:
- PFAS: Independent testing by Mamavation and the Environmental Working Group found PFAS in several brands of pads, including some marketed as “organic.” PFAS are used in the moisture-wicking layers and plastic components.
- Fragrance: Some pads include fragrance in the top sheet or core. Same undisclosed chemical problem as other personal care products.
- Dioxins: Same bleaching concern as tampons.
- Plastic components: The backing, wings, and inner layers of conventional pads contain petroleum-derived plastics that can trap heat and moisture against skin, increasing irritation.
Period Underwear Controversy
In 2020, testing by an environmental health advocate found PFAS in Thinx period underwear. The brand initially denied it, then reformulated. As of 2024, Thinx has third-party certification showing their products are PFAS-free. This episode is a good reminder that even brands marketed as “clean” need ongoing scrutiny.
What to Look for in Non-Toxic Period Products
Organic cotton: Grown without synthetic pesticides or herbicides. Look for GOTS certification or USDA Organic.
Totally chlorine-free (TCF) bleaching: The safest bleaching method. Elemental chlorine-free (ECF) is better than traditional chlorine bleaching but can still produce trace dioxins. TCF uses hydrogen peroxide and produces no dioxins.
No fragrance: There is zero medical reason for period products to contain fragrance.
Full ingredient disclosure: If a brand won’t tell you what’s in their product, that’s a red flag.
PFAS-free: Particularly important for pads and period underwear, where PFAS have been found in moisture-management layers.
The Best Non-Toxic Period Products
1. Cora Organic Cotton Tampons - Best Tampons Overall
Price: $9 for 36 ct | Material: 100% organic cotton | Applicator: BPA-free plastic | Bleaching: Totally chlorine-free
Cora is the tampon brand I recommend most often. 100% organic cotton, totally chlorine-free processing, no fragrance, no dyes, no chlorine. The BPA-free plastic applicator works smoothly and competes with Tampax on ease of insertion, which matters because the best non-toxic tampon is the one you’ll actually use.
They publish their full ingredient list and testing results. The absorbency is on par with conventional tampons across all sizes (light, regular, super, super+). No leaking issues in my testing or from feedback I’ve gathered.
What I like:
- 100% organic cotton. Full stop
- Totally chlorine-free processing. No dioxin risk
- Smooth applicator that actually works well
- Good absorbency across all sizes
- $9 for 36 is competitive with organic alternatives
- Available at Target, Whole Foods, Amazon
What I don’t like:
- Plastic applicator (though BPA-free). Not the most eco-friendly choice
- Slightly more expensive per tampon than Tampax
- Limited availability in some regions
- Individual wrappers are still plastic-lined
2. Rael Organic Cotton Pads - Best Pads
Price: $8 for 28 ct | Material: Organic cotton top sheet | Backing: Leak-proof | Fragrance: None
Rael makes organic cotton pads that perform as well as Always while keeping the ingredient list clean. The top sheet (the layer touching your skin) is organic cotton. The absorbent core is organic cotton and wood pulp. They’re chlorine-free, fragrance-free, and free of synthetic dyes.
The adhesive holds well without shifting, which is the practical concern that matters most with pads. Wings are optional depending on the product line. Absorbency is strong across their light, regular, and overnight options.
What I like:
- Organic cotton top sheet for the skin-contact layer
- Strong adhesive that actually stays in place
- Chlorine-free, fragrance-free, dye-free
- Multiple size and absorbency options including overnight
- Widely available at Target and Amazon
What I don’t like:
- The backing layer is still plastic (needed for leak prevention)
- Not the most eco-friendly option due to disposable format
- Inner absorbent core uses wood pulp in addition to organic cotton
- $8 for 28 is reasonable but adds up over time
3. Saalt Menstrual Cup - Best Menstrual Cup
Price: $29 | Material: Medical-grade silicone | Lifespan: Up to 10 years | Sizes: Small, Regular
If you’re open to a reusable option, a menstrual cup is the most non-toxic choice possible. There’s no cotton, no bleaching, no adhesive, no PFAS. Just medical-grade silicone that sits in the vaginal canal and collects menstrual fluid. You empty it, rinse, and reinsert.
Saalt’s cup is my top pick because of the balance between softness (for comfort) and firmness (to maintain the seal). They make two sizes: Small (recommended for those under 30 or with lighter flow) and Regular (recommended for those over 30 or with heavier flow).
The learning curve is real. Expect 2-3 cycles to get comfortable with insertion, removal, and finding the right fold technique. But once you’re past that, most cup users say they’ll never go back to disposables.
What I like:
- Medical-grade silicone. No chemicals, no fibers, no adhesives
- One cup lasts up to 10 years. The math on cost savings is staggering
- Zero waste once you’re using it
- No dryness or irritation that tampons can cause
- Can be worn for up to 12 hours (vs. 8 for tampons)
What I don’t like:
- Learning curve is 2-3 months for most people
- Insertion and removal can be messy, especially in public restrooms
- Not for everyone anatomically. Some people can’t get a comfortable fit
- Boiling to sterilize between cycles is an extra step
4. Natracare Organic Cotton Tampons - Best Applicator-Free
Price: $7 for 20 ct | Material: 100% organic cotton | Applicator: Cardboard (or applicator-free) | Bleaching: Totally chlorine-free
Natracare was one of the first brands to make organic cotton tampons, and they’ve been at it since 1989. Their products are certified organic, totally chlorine-free, and available in both cardboard applicator and applicator-free versions.
The applicator-free option is the most minimal tampon possible: organic cotton compressed into a tampon shape with an organic cotton withdrawal string. No plastic, no cardboard, minimal packaging. It’s the choice for people who want the lowest environmental footprint from a disposable product.
What I like:
- One of the most established organic tampon brands
- Applicator-free option produces almost zero waste
- Certified organic cotton
- Totally chlorine-free
- Cardboard applicator version is biodegradable
What I don’t like:
- Applicator-free tampons take practice
- Cardboard applicator is less smooth than plastic
- Absorbency is slightly lower than Cora in my experience
- Packaging looks dated compared to newer brands
5. Lola Organic Cotton Period Products - Best Subscription
Price: $10 for 18 ct tampons | Material: 100% organic cotton | Delivery: Subscription, customizable
Lola’s subscription model means your organic period products show up on schedule without you thinking about it. You customize your box (tampons, pads, liners, or a mix), choose your absorbency levels, and set your delivery frequency.
The products themselves are solid: 100% organic cotton, BPA-free compact applicators, no synthetic fibers or chemical additives. What Lola adds is convenience and consistency.
What I like:
- Subscription means you never run out
- Fully customizable box (mix tampon sizes, add pads, etc.)
- 100% organic cotton
- First period kits available for teens
- Ingredient transparency and third-party testing
What I don’t like:
- Per-unit cost is higher than buying Cora or Natracare at Target
- Subscription model isn’t for everyone
- Shipping adds environmental footprint
- Less widely available for one-time purchases
6. Thinx Organic Cotton Period Underwear - Best Period Underwear
Price: $33 per pair | Material: Organic cotton gusset, modal | Absorbency: 1-5 regular tampons | Reusable: Yes
After the PFAS controversy, Thinx reformulated and now offers PFAS-free period underwear with an organic cotton gusset (the layer touching your skin). They’ve obtained third-party certification confirming the reformulation.
Period underwear works best for light to moderate flow or as backup with a cup or tampon. For heavy days, most people still need an additional product. The organic cotton line specifically uses organic cotton for the skin-contact layer, with modal and recycled nylon for the outer fabric.
What I like:
- Reusable. One pair lasts 2+ years with proper care
- PFAS-free (third-party verified post-reformulation)
- Organic cotton gusset for the skin-contact layer
- Good for light days, spotting, and backup protection
- Several styles including thong, bikini, and high-waist
What I don’t like:
- $33 per pair adds up. You need 5-7 pairs for a full cycle
- Initial investment is $165-$230 before cost savings kick in
- Rinsing and washing between wears is an extra step
- Heavy flow days still need backup
- Brand trust was damaged by the PFAS controversy, even after reformulation
Cost Comparison Over One Year
| Product | Per-Cycle Cost | Annual Cost | Waste |
|---|---|---|---|
| Conventional tampons (Tampax) | ~$7 | ~$84 | High |
| Cora Organic Tampons | ~$9 | ~$108 | High |
| Natracare Applicator-Free | ~$7 | ~$84 | Moderate |
| Saalt Cup | ~$2.42/yr (over 10 yrs) | ~$2.42 | None |
| Thinx (7 pairs, 2-yr lifespan) | ~$9.60 | ~$115 (year 1), ~$0 (year 2) | Very Low |
The menstrual cup is the clear winner on both cost and waste. Organic disposables cost $24-$36 more per year than conventional, which is meaningful but manageable for most budgets.
If you’re looking at cleaning up other areas of your personal care routine, see our guides to non-toxic body wash, non-toxic deodorant, and non-toxic shampoo. For a complete home overhaul approach, our how to detox your home guide covers the whole picture.
Frequently Asked Questions
Are organic tampons really safer than regular ones?
Organic cotton tampons eliminate pesticide residues and avoid the rayon-cotton blends used in conventional products. Totally chlorine-free processing eliminates dioxin risk. Whether the trace amounts of these chemicals in conventional tampons pose measurable health risks is debated, but given the highly absorptive nature of vaginal tissue and the cumulative lifetime exposure, choosing organic removes variables that don’t need to be there.
Can menstrual cups cause toxic shock syndrome (TSS)?
TSS has been reported in menstrual cup users, but the risk appears to be extremely low and comparable to or lower than tampon-associated TSS. A 2020 review published in The Lancet Public Health found menstrual cups to be safe when used as directed. Follow the manufacturer’s guidance on wear time (usually no more than 12 hours) and sterilize between cycles.
Are pads safer than tampons?
From a chemical exposure standpoint, pads have less direct mucosal contact than tampons, but they can contain PFAS in the moisture-barrier layers. From a TSS standpoint, pads carry virtually no risk. The safest disposable option is an organic cotton pad from a brand that tests for PFAS.
Why do some pads contain PFAS?
PFAS are used in the moisture-management layers of pads to prevent leakage and manage fluid flow. They’re also present in the plastic backing of some pads. Look for brands that specifically state “PFAS-free” and have third-party verification.
How do I switch to a menstrual cup?
Start by choosing the right size (most brands have a quiz on their website). Try inserting the cup at home on a light flow day when you’re relaxed. The C-fold and punch-down fold are the most popular insertion techniques. Expect a learning curve of 2-3 cycles. Using a backup pad during the learning period is smart.
Are period underwear safe after the PFAS issues?
Thinx has reformulated and obtained third-party PFAS-free certification. Other brands like Aisle and Saalt Wear have also tested clean. The key is checking that the brand has current third-party testing, not just a marketing claim. The PFAS controversy was a useful reminder that “natural” branding doesn’t guarantee safety.
Our Take
Switching to organic period products is one of the most impactful personal care changes you can make given the absorption dynamics of vaginal tissue. Cora organic tampons are the easiest one-for-one swap if you currently use Tampax. Saalt menstrual cup is the best long-term investment. And Rael pads are the cleanest disposable pad option.
The cost difference between conventional and organic is about $2 per month. Given what’s at stake, that’s not a hard trade to make.
Last updated: March 2027. Prices may vary. We independently research and test the products we recommend. When you purchase through our links, we may earn a commission at no extra cost to you.
Sources
- van Eijk, A.M. et al. “Menstrual cup use, leakage, acceptability, safety, and availability.” The Lancet Public Health, 2019.
- Mamavation. “PFAS Lab Testing of Period Underwear and Pads.” mamavation.com
- Campaign for Safe Cosmetics. “Menstrual Product Safety.” safecosmetics.org
- Landrigan, P.J. “Cumulative Chemical Exposures from Consumer Products.” Environmental Health Perspectives.
- FDA. “Menstrual Tampons and Pads: Information for Premarket Notification Submissions.”
