Meluna · Menstrual Cups
Low Cervix MeLuna Menstrual Cup Stem
Lower concern, menstrual cups are typically PFAS-free by design, but MeLuna hasn't publicly disclosed PFAS status.
MeLuna menstrual cups are made from medical-grade silicone, a material not typically associated with PFAS use in manufacturing. No published lab testing or PFAS claims are available from the brand.
Shop Meluna on Amazon →Material
Medical-grade silicone
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's Low Cervix stem is manufactured from medical-grade silicone, a synthetic elastomer engineered for biocompatibility and internal use. Medical-grade silicone is chemically stable at body temperature and does not hydrolyze or leach harmful compounds into vaginal tissue under normal use. Unlike some cheaper menstrual cups made from generic silicone or rubber, medical-grade formulations undergo rigorous purity standards and are hypoallergenic for the majority of users.
The brand's record and disclosure
MeLuna does not publicly disclose PFAS testing or manufacturing certifications on their website or product materials. The company has not faced documented safety recalls or complaints about the stem material itself in public databases. While MeLuna is transparent about product variants and dimensions, they provide limited third-party certifications (e.g., ISO standards or dermatological testing results) compared to some competitors, making independent verification of material purity difficult.
How it compares in its category
Most mainstream menstrual cups (Saalt, DivaCup, Flex, Lunette) are made from medical-grade silicone identical to MeLuna's material. MeLuna's transparency on ingredient sourcing is roughly average for the category; few brands voluntarily test for PFAS in menstrual products. The stem design (shorter profile) does not introduce additional chemical risks compared to longer stems and may actually reduce surface area for potential contamination, though this is minor.
If you buy it
Rinse with lukewarm water before first use and after each cycle; do not boil above 248F (120C) as extreme heat may degrade silicone over time, though this is rare. Replace the cup every 5-10 years or immediately if the silicone becomes sticky, discolored, or develops odor that cleaning does not remove. Store in a breathable pouch (not sealed plastic) to prevent mold growth; if you have a latex allergy, confirm silicone is latex-free (MeLuna products are, but verify at purchase).
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 over extended use
Medical-grade silicone can degrade if exposed to prolonged heat, harsh cleaners, or storage in direct sunlight; MeLuna recommends replacement every 5-10 years, and users should monitor for stickiness or discoloration. No safety recalls exist on record for MeLuna stems, but individual reports of premature breakdown are anecdotal and rare.
Allergic reaction to silicone or additives
True silicone allergy is uncommon but documented in medical literature; reactions typically present as localized irritation or contact dermatitis. MeLuna does not disclose specific cure systems or additives used in silicone manufacturing, limiting ability to identify allergens for sensitive users.
Bacterial or mold contamination from storage/cleaning
Improper storage in sealed containers or incomplete drying can promote microbial growth; this is a use-behavior risk rather than a material hazard. Medical-grade silicone itself is non-porous and does not harbor bacteria, but the stem's grooves may trap biofilm if not cleaned thoroughly.
No documented heavy metal or plasticizer leaching
Medical-grade silicone does not contain BPA, phthalates, or known heavy metals as manufacturing ingredients; no leaching has been reported for MeLuna or similar products in peer-reviewed or regulatory data. The stem's silicone formulation is chemically stable at vaginal pH and temperature.
Disclosure gap on manufacturing inputs and PFAS testing
MeLuna's silence on PFAS testing and limited publication of material certifications makes it impossible to verify whether fluorinated compounds are absent or present. This is a transparency issue affecting consumer confidence, not a confirmed chemical hazard; the product design (non-coated silicone) makes PFAS contamination unlikely but not ruled out.
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.