Cora · Menstrual Cups
Cora The Easy-Does-It Menstrual Cup
Lower-concern product; medical-grade silicone cups are not typical PFAS vectors, but lack of explicit brand disclosure leaves uncertainty.
Cora's menstrual cup is made from medical-grade silicone, a material not conventionally treated with PFAS. Menstrual cups do not require water repellency, grease resistance, or nonstick coatings, the primary PFAS use categories. The brand does not publicly disclose or claim PFAS-free status, which is typical for this product category.
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 Easy-Does-It cup is constructed from medical-grade silicone, a non-porous elastomer that resists degradation during repeated boiling sterilization and vaginal contact. Medical-grade silicone does not leach BPA, phthalates, or other endocrine disruptors when exposed to body heat or menstrual fluid; its stability derives from the Si-O backbone, which is chemically inert at physiological pH and temperature. Unlike lower-grade silicone or TPE alternatives, medical-grade formulations are subject to FDA biocompatibility testing (ISO 10993 standards) before marketing for intimate use. This material class has an established safety record in implantable devices and menstrual products.
The brand's record and disclosure
Cora does not publicly disclose PFAS testing results or manufacturing certifications on product pages or packaging reviewed in available sources. The brand has not faced recalled product safety incidents related to contamination or material failure in menstrual cups. Cora markets the product as hypoallergenic and body-safe but does not specify third-party biocompatibility testing (e.g., dermatology certification) or provide toxicology transparency beyond material claims. This silence is typical in the menstrual cup market; most competitors (Saalt, Lunette, Nixit) follow the same pattern.
How it compares in its category
Medical-grade silicone menstrual cups occupy the safety-leader tier of period products, alongside cups from Saalt and Lunette, all free of reported extractable contaminants. Cora's positioning is mid-range in price and brand prominence; it competes against reusable cups (lower chemical burden than disposable pads or tampons) and disposable alternatives (which carry bleach, dioxin, and fragrance concerns). The category has no widespread recalls for silicone leaching, though individual sensitivity cases appear anecdotally. Cora's cup design (bell shape with valve) is functionally typical for the silicone menstrual cup subcategory.
If you buy it
Sterilize by boiling in water for 5 minutes before first use and monthly thereafter; do not use bleach or harsh soaps that may degrade silicone over time. Empty and rinse every 4 to 12 hours depending on flow; check for visible tears, staining, or odor that signals replacement (typically after 5 to 10 years of use). Do not store in direct sunlight or extreme heat when not in use. If you experience itching, burning, or irritation, discontinue use and consult a gynecologist; silicone allergy is rare but possible.
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 from boiling and oxidative stress
Repeated boiling can accelerate microscopic degradation of medical-grade silicone, though this is slower than lower-grade TPE. No peer-reviewed data quantifies leachate from Cora cups specifically, but generic silicone cups have shown minimal extractable organic matter in third-party testing.
Bacterial colonization if not cleaned thoroughly
Menstrual cups can harbor bacteria if left wet or stored in damp conditions; this is a use-and-care issue, not a material defect. Risk is comparable across all silicone cups; proper drying and monthly boiling mitigate.
Allergic contact dermatitis from silicone or residual additives
Medical-grade silicone is hypoallergenic but not allergy-proof; traces of uncrosslinked oligomers or vulcanization agents can trigger sensitivity in rare cases. No documented cases specific to Cora; risk is inherent to the material class, not brand-specific.
Vaginal microbiome disruption from reusable cup use
Silicone cups do not actively release antimicrobial agents or pH-altering compounds. The cup itself does not leach substances that alter vaginal flora; any disruption would stem from improper hygiene or prolonged wear, not material chemistry.
BPA, phthalates, or endocrine disruptors from silicone matrix
Medical-grade silicone does not contain BPA or phthalates by formulation. These compounds are not byproducts of silicone curing and do not migrate into vaginal tissue. Testing of commercial silicone cups has consistently shown absence of these markers.
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.