Cora · Menstrual Cups
2 Cora Easy To Use Reusable Menstrual Cup ultra flexible - Size 2
Lower-concern buy, silicone cups rarely require PFAS, but Cora offers no public disclosure.
The Cora menstrual cup is made from medical-grade silicone, a material not typically treated with PFAS coatings or durable water repellents. Cora does not publicly claim PFAS-free status or hold third-party certifications (like MADE SAFE), leaving some ambiguity. No public lab data or recalls exist for this product.
Shop Cora 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
Cora's cup is constructed from medical-grade silicone, a synthetic rubber polymer that is inert at body temperature and does not leach plasticizers like BPA or phthalates. Medical-grade silicone is specifically formulated to meet biocompatibility standards for prolonged skin contact and internal use. The material does not soften or degrade from repeated sterilization via boiling or autoclaving, which is critical for a reusable product used multiple times per cycle. Unlike cheaper silicone or TPE alternatives, medical-grade formulations exclude known irritants and are thermally stable.
The brand's record and disclosure
Cora does not publish detailed material safety data sheets or PFAS statements on its website, which is a transparency gap for a product marketed to health-conscious consumers. The brand holds no third-party certifications (e.g., FDA clearance as a medical device, ToxicFree Foundation certification) visible in public records. However, no product recalls, contamination incidents, or safety complaints tied to this specific cup have been documented in FDA or consumer safety databases. The silence on PFAS and other additives leaves questions open, but absence of reported harm is notable.
How it compares in its category
Medical-grade silicone menstrual cups are among the safest reusable period products available; they outperform cheaper TPE or latex alternatives in terms of durability and leaching risk. Competitors like Saalt, Lena, and Putacup also use medical-grade silicone with similar lack of disclosure, so Cora is not an outlier in transparency. The 'ultra flexible' formulation may indicate a softer silicone compound, which can improve comfort but theoretically increases surface area for any residual leachables, though the practical risk is minimal. Size 2 positioning (larger capacity) is standard for heavier flows and wider cervixes.
If you buy it
Boil or steam-sterilize the cup for 5-10 minutes before first use and between cycles; do not use bleach or harsh solvents that can degrade silicone. Store in a breathable cotton pouch when dry; avoid prolonged direct sunlight or heat (e.g., near radiators), which can harden silicone over years. Replace the cup if you notice persistent staining, pitting, or loss of flexibility (typically 5-10 years with proper care). Wash hands before insertion and removal, and rinse the cup with water between emptying sessions to prevent bacterial buildup.
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.”
Leaching from silicone matrix
Medical-grade silicone used in Cora cups is designed to be inert and does not release BPA, phthalates, or other common plasticizers at body temperature. No published test data or recalls document leaching from Cora menstrual cups specifically.
Bacterial or fungal growth if not maintained
Any reusable internal device poses theoretical risk of bacterial colonization if not properly cleaned or sterilized between uses. This is a user-care issue, not a product defect; proper boiling and dry storage eliminate this risk.
Allergic reaction to silicone or residual catalysts
Rare silicone allergies exist, typically triggered by platinum catalysts or other manufacturing residues. Medical-grade silicone minimizes these, but individual sensitivity cannot be ruled out before first use.
Degradation from boiling or high heat over time
Medical-grade silicone is rated for repeated boiling and is more heat-stable than consumer-grade silicone; no documented failure or off-gassing from normal sterilization of Cora cups.
Undisclosed additives or processing aids
Cora provides no public composition data or test certifications, so presence of flow agents, colorants, or stabilizers cannot be independently verified. This transparency gap is the primary uncertainty, not evidence of harm.
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.