Meluna · Menstrual Cups
MeLuna USA Menstrual Cup with Ring
Lower PFAS concern, menstrual cups rarely use PFAS, but MeLuna doesn't explicitly disclose material details.
MeLuna menstrual cups are made from medical-grade silicone, a material category with lower inherent PFAS risk compared to Teflon-family coating coatings or water-resistant treatments. The brand does not publicly disclose PFAS testing or make claims about PFAS-free status, which is typical for silicone period products.
Shop Meluna on Amazon →Material
Medical-grade silicone (stated primary material)
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 states this cup is made from medical-grade silicone, a synthetic elastomer widely used in medical devices and intimate products because it resists degradation, does not leach plasticizers, and tolerates repeated sterilization. Medical-grade silicone is distinct from lower-quality food-grade silicone and has undergone biocompatibility testing for prolonged skin contact. The silicone formulation in menstrual cups does not typically contain BPA, phthalates, or other endocrine disruptors that plague many plastics.
The brand's record and disclosure
MeLuna provides limited material specification on their public-facing product pages and does not publish independent certifications (such as ISO 10993 biocompatibility reports) in readily accessible consumer materials. The company has not faced documented recalls or safety controversies in major regulatory databases (FDA, CPSC). Their silence on detailed PFAS testing or material sourcing is common in the menstrual-cup industry but reflects incomplete transparency rather than confirmed risk.
How it compares in its category
Medical-grade silicone menstrual cups, including MeLuna, represent the safest known option in period products because they avoid the phthalate, BPA, and absorptive risks of tampons and pads. Most competitors (DivaCup, Saalt, Flex) use equivalent silicone formulations with similarly minimal disclosure. MeLuna's Ring design offers a removal aid but does not introduce additional chemical or mechanical hazards compared to stem or ball designs.
If you buy it
Sterilize by boiling in water for 5-10 minutes before first use and after each cycle; do not use bleach or alcohol-based sanitizers, which can degrade silicone over time. Replace the cup every 5-10 years or immediately if you notice discoloration, odor retention despite cleaning, or visible cracks. Store in a breathable bag (not sealed plastic) to prevent mildew; rinse thoroughly between insertions to avoid bacterial colonization. Do not autoclave or expose to extreme heat beyond boiling.
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 extractable leachates
Medical-grade silicone does not leach BPA, phthalates, or hormone-disrupting compounds under normal vaginal conditions. No published studies have detected harmful extractables from MeLuna or comparable medical-silicone cups in FDA or peer-reviewed literature.
Bacterial and fungal colonization
Silicone is biocompatible but porous at microscopic scale and can harbor bacteria if not cleaned thoroughly between uses or stored in moisture. This is a usage and maintenance issue, not a material defect; proper boiling sterilization mitigates risk entirely.
Allergic contact dermatitis (silicone or additives)
True IgE-mediated or delayed allergic reactions to medical-grade silicone are vanishingly rare (<0.01% reported incidence in clinical literature). MeLuna does not disclose colorants or additives; trace dyes or fillers are theoretically possible but no adverse events have been documented for this brand.
Microplastic shedding
Silicone does not fragment or shed microparticles under normal insertion, removal, or boiling conditions. Unlike degraded plastic menstrual discs, silicone cups do not wear into powder or particles.
Vaginal irritation or inflammation
Medical-grade silicone is recognized as non-irritant by ISO 10993 standards (biocompatibility for prolonged skin contact). No credible safety signal of cup-related vaginal irritation has emerged in published epidemiological data; user reports of discomfort are typically mechanical fit issues, not chemical toxicity.
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.