FemmyCycle · Menstrual Cups
Menstrual Cup
Lower-concern choice; silicone cups avoid PFAS-prone coatings, but brand transparency is minimal.
FemmyCycle menstrual cups are made from medical-grade silicone, a material not typically associated with PFAS use or Teflon-family coating coatings. No public PFAS claims or third-party testing from the brand are available.
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
FemmyCycle uses medical-grade silicone, a synthetic polymer that does not leach BPA, phthalates, or other endocrine disruptors under normal use conditions. Silicone is inert at body temperature and resistant to degradation from menstrual fluid, sweat, and repeated sterilization. Unlike latex or lower-grade plastics, medical-grade silicone does not off-gas volatile organic compounds (VOCs) or break down into microplastics during the typical 5-10 year lifespan of a menstrual cup.
The brand's record and disclosure
FemmyCycle has not published a detailed material safety data sheet or third-party certification (such as FDA 510(k) clearance or ISO 10993 biocompatibility testing) in publicly available sources. The brand maintains a neutral stance on PFAS and does not explicitly claim PFAS-free status. No major recalls or safety controversies have been documented for this product in publicly available regulatory databases. The lack of transparency is a weakness, but it does not indicate a known problem.
How it compares in its category
Menstrual cups made from medical-grade silicone are generally safer than disposable pads (which may contain chlorine-bleached materials and fragrance additives) and tampons (which carry theoretical risks of bacterial contamination and TSS). Silicone cups are comparable in safety to other silicone-cup brands such as Lunette and Saalt. Cups made from TPE (thermoplastic elastomer) or lower-grade silicone carry slightly higher leaching risks, making FemmyCycle's material choice competitive.
If you buy it
Sterilize the cup by boiling in water for 5-10 minutes before first use and monthly thereafter; do not use bleach or harsh chemicals that may degrade silicone over time. Empty and rinse the cup every 4-8 hours depending on flow; silicone will not absorb menstrual fluid, reducing bacterial growth risk. Replace the cup after 5-10 years or if the silicone becomes sticky, discolored, or shows visible cracks. Store in a breathable pouch, not in an airtight container, to avoid mold and odor.
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.”
Bacterial contamination
If the cup is not emptied frequently enough or sterilized before first use, bacteria may colonize the silicone surface. Risk is low with proper hygiene but higher than with daily-change disposable products. Medical-grade silicone itself does not harbor pathogens, but its porous microscopic surface can trap bacteria if maintenance is neglected.
Silicone degradation and leaching
No documented cases of medical-grade silicone menstrual cups leaching harmful compounds into the vaginal environment under normal use. Boiling, soap, and water do not degrade silicone; harsh bleach or abrasive scrubbing may cause microscopic damage, but this is avoidable with proper care.
Allergic contact dermatitis
Rare cases of silicone sensitivity have been reported in the medical literature, though true IgE-mediated silicone allergy is extremely uncommon. Some users may experience irritation from manufacturing residues or sterilization by-products, particularly if the cup is not rinsed thoroughly before first insertion.
Toxic shock syndrome (TSS) risk
TSS risk is not elevated by silicone menstrual cups compared to tampons, as the cup does not absorb fluid and is removed and cleaned daily. No TSS cases have been epidemiologically linked to menstrual cups in public health records. Risk remains theoretical and tied to infrequent emptying or sterilization.
Heavy metals in pigments or additives
Medical-grade silicone for internal use is not typically dyed or pigmented; if FemmyCycle uses color additives, no published safety testing or recalls indicate heavy metal contamination. Lack of transparency on additives means this cannot be fully ruled out without independent testing.
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.