FemmyCycle · Menstrual Cups
Goddess Moon Menstrual Cup
Lower-concern product; silicone menstrual cups typically don't require PFAS, but FemmyCycle provides no public disclosure.
Menstrual cups are made from medical-grade silicone, a material that doesn't inherently require PFAS coatings for function. FemmyCycle's Goddess Moon appears to use silicone, which carries lower PFAS risk than nonstick or waterproof-treated goods.
Shop FemmyCycle 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
The Goddess Moon is constructed from medical-grade silicone, a synthetic polymer widely used in medical devices and long-term body contact applications because it resists degradation and does not leach plasticizers like BPA or phthalates. Silicone itself is chemically inert at body temperature and does not off-gas volatile organic compounds (VOCs) the way some plastics do. This material class is not known to require PFAS for water or stain resistance, making it a lower-concern choice compared to polyurethane or plastic-coated alternatives.
The brand's record and disclosure
FemmyCycle does not publicly disclose third-party testing results, certifications (such as FDA clearance documentation), or material sourcing details on their website. The brand has not made any public statements regarding PFAS use or avoidance, which is common among smaller menstrual-product manufacturers but limits independent verification. No product recalls or safety complaints specific to this cup appear in public safety databases; however, the lack of transparency makes it difficult to assess manufacturing controls or material purity beyond the stated silicone grade.
How it compares in its category
Medical-grade silicone cups (like this one) are considered safer than latex or older plastic formulations because they avoid natural rubber latex allergens and phthalate leaching risks. Most major competitors (Saalt, Lunette, DivaCup) publish third-party testing or FDA 510(k) summaries; FemmyCycle's lack of public certification is a relative weakness in transparency, though not evidence of inferior safety. The Goddess Moon's price point and construction quality appear typical for the mid-market segment.
If you buy it
Wash with mild soap and water before and after each use; avoid harsh scrubbing that can micro-damage the silicone. Boil or steam-sterilize between cycles if desired, but do not expose to extreme heat (above 150°C/300°F) for extended periods, as this can degrade even medical-grade silicone over time. Replace the cup every 2 to 5 years depending on visible wear, discoloration, or loss of flexibility. If you experience irritation or odor that does not resolve with thorough cleaning, discontinue use and consider testing for silicone sensitivity (rare but documented).
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 leaching (prolonged high heat)
Medical-grade silicone is stable at body temperature but can degrade if boiled repeatedly or exposed to extreme heat. No specific breakdown products are established for this cup, but prolonged heat stress may cause trace leaching of uncrosslinked oligomers.
Allergic contact dermatitis or sensitization
Silicone allergy is rare but documented in medical literature. FemmyCycle provides no patch-test data or allergen declaration, making it impossible to rule out contamination or residual catalysts from manufacturing.
Bacterial overgrowth from improper cleaning
Menstrual cups in general are associated with rare cases of toxic shock syndrome and bacterial vaginosis if not cleaned thoroughly between uses. The silicone material itself does not harbor bacteria better than others, but user maintenance is critical.
Migration of uncrosslinked silicone components
Lower-quality silicone may contain uncrosslinked oligomers that migrate into body fluids over time. FemmyCycle does not publish material purity specifications, so residual siloxane monomers cannot be ruled out.
No PFAS requirement established
Medical-grade silicone does not require PFAS for water or stain resistance, and no evidence suggests FemmyCycle uses PFAS in the Goddess Moon. However, silence on PFAS sourcing of the silicone polymer itself is a transparency gap.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% 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.