Cora · Menstrual Cups
Cora Disc The Soft Fit Disc
Lower-concern period disc; no known PFAS red flags, but limited public transparency on materials.
Cora's soft-fit disc is made from silicone, a material not typically associated with PFAS contamination in period-care products. The brand does not publicly disclose PFAS policies or certifications. No published lab testing or government recalls have been identified.
Shop Cora on Amazon →Material
silicone disc (soft-fit design)
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
Cora Disc uses medical-grade silicone, a synthetic polymer with a stable silicon-oxygen backbone that does not leach BPA, phthalates, or other endocrine disruptors under normal vaginal pH and body temperature. Unlike latex or polyurethane alternatives, silicone is inherently non-porous, resistant to microbial colonization, and remains chemically inert during extended wear (up to 12 hours). The soft-fit design relies on silicone's flexibility rather than rigid structural materials, eliminating concerns about heavy metals in hardening resins or adhesives.
The brand's record and disclosure
Cora has not published detailed material certifications (e.g., USP Class VI, ISO 10993 biocompatibility testing) on their website, though the product is FDA-cleared as a Class II medical device, which requires submission of material safety data. The company does not publicly address PFAS content or manufacturing chemical controls. No recalls, contamination incidents, or third-party safety reports exist on record for Cora Disc products. Transparency on supply chain and material sourcing remains limited compared to competitors like Saalt or Lumma.
How it compares in its category
Menstrual discs made from medical-grade silicone occupy a safer profile than older latex cups (latex allergen risk) or lower-cost silicone products from unverified manufacturers. Cora Disc sits mid-range: more affordable than premium European brands (Nixit, Lumma) but lacks their published biocompatibility certifications. The soft-fit disc design is newer to the category and has fewer long-term wear-duration studies than traditional cups, though silicone chemistry itself is well-established in medical devices.
If you buy it
Boil or steam-sterilize before first use and monthly; do not expose to high heat (above 85 degrees Celsius) as silicone can degrade and lose flexibility. Inspect the disc regularly for tears, cloudiness, or sticky residue, and replace annually or if the material becomes visibly compromised. Rinse thoroughly after each removal to prevent bacterial buildup in the reservoir folds. Store in a breathable cotton pouch away from direct sunlight to slow long-term silicone degradation.
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 leaching (general)
Medical-grade silicone is chemically stable at body temperature and vaginal pH; no established peer-reviewed evidence of leaching oligomers or additives from cleared menstrual discs. Risk is theoretical only for non-compliant or counterfeit products.
Bacterial contamination and toxic shock syndrome (TSS) risk
All menstrual cups and discs carry TSS risk if left in place beyond recommended wear time (12 hours for Cora Disc) or if contaminated during insertion/removal. This is a usage/hygiene issue, not a material defect; risk is comparable across silicone products but higher if sterilization is skipped.
Allergens and sensitivities
Medical-grade silicone is non-allergenic; however, residual processing agents or mold-release compounds (if not fully purged during manufacturing) could theoretically trigger contact dermatitis in sensitive individuals. Cora does not disclose purging or post-processing protocols.
Material degradation and microparticle shedding
Prolonged UV exposure, high-heat sterilization, or aggressive cleaning can degrade silicone over 12-24 months, potentially releasing fine particles. No published data exists on microparticle load from Cora Disc specifically, but regular visual inspection and annual replacement mitigates risk.
Reproductive/developmental toxicity from additives
Medical-grade silicone formulations used in menstrual products do not typically include plasticizers, flame retardants, or resin additives. Cora Disc carries no known association with hormone disruption or fetal developmental effects under normal use.
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.