Nixit · Menstrual Cups
nixit Cycle+ Menstrual Disc Cycle Essentials Plus Lube
Lower PFAS concern; silicone menstrual discs rarely use fluorochemical treatments, but brand transparency is absent.
Nixit's Cycle+ disc is made from medical-grade silicone, a material not typically associated with intentional PFAS use in period-care products. The brand does not publicly disclose PFAS-related testing or claims.
Shop Nixit on Amazon →Material
Medical-grade silicone disc with water-based lubricant
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
Nixit Cycle+ is constructed from medical-grade silicone, a polymer chain (polydimethylsiloxane) that is chemically stable and non-reactive at body temperature and pH. Medical-grade silicone used in menstrual discs is different from cheaper silicone kitchen products because it meets ISO 10993 biocompatibility standards, meaning it has been tested for skin/mucous membrane irritation and systemic toxicity. The included water-based lubricant reduces friction during insertion. Silicone of this grade does not leach BPA, phthalates, or other endocrine disruptors under normal vaginal use conditions.
The brand's record and disclosure
Nixit does not publicly disclose third-party testing results, material sourcing details, or manufacturing standards beyond marketing claims of 'medical-grade silicone.' The brand has not communicated a stance on PFAS (fluorochemicals used in water-repellent coatings), which creates a transparency gap even though silicone menstrual discs rarely require such treatments. No recalls or safety complaints have been widely reported for this product. The company does not list ISO certifications or independent lab reports on its website.
How it compares in its category
Menstrual discs as a category carry lower chemical risk than disposable pads or tampons because they avoid superabsorbent polymers, bleached cellulose, and fragrance additives common in single-use products. Compared to other silicone discs (Lumma, Ziggy), Nixit does not differentiate itself through published safety certifications; most competitors are similarly opaque about PFAS and heavy metals testing. Water-based lubricants are standard across brands and generally safer than silicone-based alternatives, which can degrade silicone products over time.
If you buy it
Wash the disc with plain soap and warm water before first use and after each cycle; avoid boiling if the water-based lube is bonded to the silicone, as heat can degrade the coating over time. Inspect the disc monthly for tears, clouding, or stiffness; replace every 5-10 years depending on use frequency and visible wear. Do not use oil-based lubricants or petroleum jelly, as these degrade silicone. If you experience irritation, swelling, or allergic symptoms, discontinue use; individual sensitivities to silicone are rare but documented.
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 under stress
Medical-grade silicone is stable under normal vaginal pH and temperature, but repeated boiling, oil-based lubricant contact, or extended sun exposure can cause breakdown and leaching of oligomeric siloxanes (small silicone chain fragments). Risk is low if care instructions are followed.
Water-based lubricant contamination and bacterial growth
If the water-based lube is not sealed or the disc is stored in a damp environment without drying, microbial growth (mold, bacteria) is possible. Proper air drying after cleaning mitigates this risk significantly.
Heavy metals in colorants or pigments
No reported incidents of lead, cadmium, or antimony contamination in Nixit discs. Silicone products rarely use heavy-metal-based pigments, but brand does not publish colorant sourcing.
Allergic contact dermatitis to silicone or lubricant additives
Silicone allergies are rare, but some individuals react to residual catalysts or mold inhibitors in silicone products. Water-based lubricants may contain glycerin, cellulose, or preservatives that trigger irritation in sensitive users.
PFAS in water-repellent coatings (if present)
Nixit has not disclosed whether the disc or packaging uses fluorochemical treatments for water-repellency. Silicone discs do not inherently require such coatings, but coating presence cannot be ruled out without brand disclosure.
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.