Meluna · Menstrual Cups
MeLuna USA Menstrual Cup
Lower-concern product; medical-grade silicone is not a typical PFAS vector, but brand discloses nothing.
MeLuna menstrual cups are made from medical-grade silicone, a material class with minimal documented PFAS risk compared to coated cookware or water-repellent textiles. The brand does not publicly disclose or claim PFAS-free status. No independent lab data or certifications are available to verify the claim further.
Shop Meluna on Amazon →Material
Medical-grade silicone (primary)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
period care is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
MeLuna cups are constructed from medical-grade silicone, a thermosetting elastomer chosen for biocompatibility and durability in intimate-contact applications. Medical-grade silicone does not leach BPA, phthalates, or other common plasticizers because it is not a plastic and contains no plasticizers by definition. The material is chemically inert across normal body temperatures and resistant to degradation from repeated sterilization cycles, making silicone one of the safest material choices for menstrual devices.
The brand's record and disclosure
MeLuna publishes material safety data sheets and certifies products to FDA requirements as Class II medical devices in the US, though independent third-party material testing results are not publicly available. The brand has been in operation since 2006 with no formal recalls, safety complaints, or litigation on record related to material contamination or toxicity. However, MeLuna does not proactively disclose manufacturing origin, supplier audits, or post-consumer testing, limiting independent verification of claims.
How it compares in its category
Silicone cups (MeLuna, Diva Cup, Saalt, etc.) occupy the safest segment of the menstrual product category because silicone avoids the absorbency-related concerns of tampons and pads (TSS risk, endocrine disruptors in bleached cellulose). MeLuna is priced competitively and offers more size/firmness options than many competitors, though some users report less brand visibility on ingredient sourcing compared to premium brands like Saalt. The product is reusable, reducing chemical exposure over time versus disposable alternatives.
If you buy it
Sterilize by boiling for 20 minutes before first use and after each cycle to prevent bacterial colonization; do not use bleach or harsh chemicals that may degrade silicone over time. Replace after 5-10 years or immediately if material develops cracks, discoloration, or sticky residue. Clean between periods with mild soap and water; store in a breathable pouch, not a sealed plastic container, to prevent mold growth. Do not use silicone-based lubricants during insertion as they may compromise grip.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Silicone degradation and bacterial biofilm
While medical-grade silicone is chemically stable, repeated sterilization and prolonged storage in humid conditions can create microscopic surface roughness that harbors bacteria if not cleaned properly. Risk is managed by routine boiling sterilization and dry storage; no specific recalls exist for MeLuna.
Allergic contact dermatitis from residual additives
Medical-grade silicone formulations may contain trace processing aids or vulcanization residues; MeLuna does not disclose detailed silicone supplier specifications. No reported allergic reactions specific to MeLuna cups are on record, but individuals with silicone sensitivity should patch-test or consult a clinician.
Heavy metals in colorants (if dyed variants used)
MeLuna offers colored cups (blue, purple, clear); pigment composition is not disclosed. Medical-grade silicone colorants are typically approved for body contact, but independent analysis of MeLuna-specific dyes has not been published. Risk is very low given FDA device clearance, but transparency would strengthen confidence.
Leaching from silicone oil or uncrosslinked oligomers
High-quality medical-grade silicone has minimal extractable oligomers, but manufacturing quality control directly affects this. MeLuna does not publish extraction or oligomer testing data. The risk is lower than with food-contact silicones, but full chemical profiling is not publicly available.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 78% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Menstrual Cups
Aisle
DIVA Cup Model 2
Medical-grade silicone (body); no Teflon-type coating or Teflon-family coating coatings
Lower-concern menstrual cup; silicone construction and PFAS-free commitment make it a reasonable choice.
✓Verified PFAS-free by a third party
Ruby Cup
Steriliser
Stainless steel heating chamber with silicone/plastic components
Lower-concern menstrual cup sterilizer; stainless core typical for appliances, but silicone/plastic parts unspecified, contact brand for material detail.
⚠Risky category by default
Ruby Cup
Steriliser Purple
stainless steel steriliser/heating element
Lower PFAS concern; no high-risk coatings typical of this product category.
⚠Risky category by default
More menstrual cups grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.