Meluna · Menstrual Cups
Purple Cup Menstrual Cup Kit - Microwave Disinfection Method | Meluna USA, Stem / XL / White
Lower-concern choice; medical-grade silicone cups carry minimal PFAS risk, but Meluna offers no public transparency.
Menstrual cups made from medical-grade silicone are inherently lower-risk for PFAS than coated or treated products, silicone elastomers don't typically require fluorinated additives for function. Meluna does not disclose PFAS testing or make claims either way, which is normal for this product category but leaves a small verification gap.
Shop Meluna on Amazon →Material
Medical-grade silicone (elastomer)
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
This cup is manufactured from medical-grade silicone elastomer, a synthetic rubber polymer chemically inert at body temperature and designed for repeated internal contact. Medical-grade silicone (typically vulcanized silicone with platinum or peroxide catalysts) is non-porous, does not leach plasticizers like BPA or phthalates, and resists degradation from heat and menstrual fluid chemistry. The XL stem design is molded from the same material, so no adhesives or secondary materials contact internal tissue. This material class has decades of safe use in surgical implants, catheters, and medical devices.
The brand's record and disclosure
Meluna USA does not publish PFAS content statements or third-party material certifications (such as FDA medical device documentation for US market) on consumer-facing channels, making it difficult to verify water-resistance coatings or manufacturing aids. The brand has no recorded safety recalls or regulatory warnings in major databases. Meluna operates as a German manufacturer with US distribution but does not market cups with antimicrobial additives, dyes, or fragrance, reducing exposure to heavy-metal pigments or fragrance allergens. No public controversy exists regarding silicone cup safety under their name.
How it compares in its category
Menstrual cups as a category pose far fewer chemical hazards than pads or tampons (which contain chlorine-bleached fibers, adhesives, and fragrance). Meluna sits in the mainstream mid-premium tier alongside Diva Cup and Lunette; all use medical-grade silicone. Meluna's lack of certifications (CE marking, FDA 510k evidence) is slightly below competitors but does not indicate material risk. The microwave disinfection method is standard across the category and poses no unique chemical exposure if the silicone is genuinely medical-grade.
If you buy it
Boil or microwave-disinfect per Meluna's instructions before first use and monthly thereafter; silicone tolerates 100C water without degradation. Do not use silicone-degrading oils (tea tree, coconut oil neat), silicon-based lubricants, or bleach; soap and water work daily. Replace if you see surface cracking, discoloration, or sticky residue (signs of breakdown or manufacturing defect). The XL/stem design suits heavier flow and longer retention but check fit; internal bruising suggests inadequate seal, not chemical toxicity. Store in breathable pouch, never sealed bags.
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 from oils and solvents
Medical-grade silicone is durable but can soften or absorb residues from coconut oil, tea tree oil, or certain cosmetic products. Meluna documentation does not explicitly warn against these; users should rinse thoroughly with soap and water and air-dry.
Microplastics from wear and tear
Repeated microwave heating and mechanical folding can cause microscopic silicone particle shedding over years of use, though silicone is not as prone to this as lower-quality plastics. No study quantifies internal exposure from menstrual cups specifically; risk is theoretical and low.
Bacterial growth if not cleaned properly
Silicone's non-porous surface resists bacterial colonization better than fabric, but the stem and rim can trap fluid if not rinsed immediately after removal. Meluna includes care instructions but does not highlight infection prevention as explicitly as some competitors.
Allergic sensitization to silicone
Silicone allergy is extremely rare in menstrual cup users; no recalls or case reports associated with Meluna cups. This remains a theoretical rather than observed hazard in this product category.
Heavy metals in silicone colorants (white pigmentation)
White pigmentation in silicone cups typically uses titanium dioxide or silica rather than lead or cadmium compounds. Meluna provides no material data sheet for the white variant, but white silicone colorants are not flagged in any regulatory database as a concern.
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.