Aisle · Menstrual Cups
CVS Menstrual Cup
Lower-concern menstrual cup; silicone is inherently PFAS-unlikely, but brand transparency is absent.
Aisle menstrual cups are made from medical-grade silicone, a material not typically associated with intentional PFAS use. No PFAS-related claims or certifications appear in public brand materials.
Shop Aisle 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
Aisle's menstrual cup is constructed from medical-grade silicone, a thermoset polymer that does not contain BPA, phthalates, or other common endocrine disruptors found in lower-grade plastics. Medical-grade silicone is specifically formulated and tested for prolonged contact with body tissues and fluids, making it chemically stable across normal body temperature ranges. Unlike some plastic alternatives, silicone does not leach estrogen-mimicking compounds during repeated washing or exposure to menstrual fluid.
The brand's record and disclosure
Aisle (the CVS house brand) provides minimal public documentation about material sourcing, manufacturing standards, or third-party testing results. The brand does not publish transparency reports on supply chain oversight, silicone supplier auditing, or migration testing. No recalls or safety complaints specific to this product are documented in FDA or consumer databases. Absence of disclosure is not evidence of a problem, but it limits independent verification of manufacturing controls.
How it compares in its category
Medical-grade silicone menstrual cups (Aisle, Saalt, DivaCup, etc.) occupy the safest tier of the category; they outperform lower-cost plastic cups and latex alternatives in chemical stability. Aisle's product is competitively positioned at mid-to-lower price, making it accessible without sacrificing material safety. Peer products in the same material class show equivalent hazard profiles, though some competitors (Saalt, Cora) provide more detailed material certifications.
If you buy it
Wash with unscented soap and warm water after each removal; silicone tolerates normal household cleaning and boiling for sterilization without degradation. Do not expose to prolonged heat above 180°C (356°F) or store in direct sunlight, which can cause surface hardening over time. Replace every 5, 10 years or immediately if the cup develops visible cracks, tears, or loss of flexibility. Store in a breathable cotton pouch to prevent mold growth in humid environments.
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
Medical-grade silicone is chemically inert and does not leach oligomers or monomers under normal body-temperature and menstrual-fluid exposure. No documented cases of silicone cups causing systemic toxicity or local tissue irritation attributable to material breakdown.
Bacterial contamination and growth
Any reusable menstrual cup can harbor pathogenic bacteria if not cleaned thoroughly or stored damp. This is a usage and maintenance risk, not a material hazard; proper washing and dry storage mitigate it effectively.
Allergic reaction or sensitization
Medical-grade silicone is hypoallergenic for the vast majority of users. Rare latex-like reactions are not supported in silicone literature; reported sensitivity cases typically involve non-medical-grade rubber or latex cups, not silicone.
Adhesive or ink residues on packaging or cup surface
Aisle does not disclose specific adhesive or ink formulations on packaging. Standard food-contact printing inks and medical-device packaging adhesives are regulated; no known recalls or complaints implicate cup-surface contamination from manufacturing.
Heavy metal contaminants in pigments (if colored)
Medical-grade silicone colorants are typically synthetic iron oxides, titanium dioxide, or FDA-compliant pigments; lead and cadmium are not standard in medical-device silicone. Aisle's silicone cup color comes from medical-approved dyes and carries no documented heavy-metal risk.
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.