Lumma · Tampons
Lumma Reusable Menstrual Disc
Lower-concern option; silicone menstrual discs carry minimal PFAS risk, but Lumma's silence on sourcing leaves room for improvement.
Lumma's menstrual disc is made of medical-grade silicone, a material not typically associated with PFAS contamination. No PFAS-specific claims or third-party testing disclosures are publicly available from the brand.
Shop Lumma 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 is made of and why it matters
Lumma Reusable Menstrual Disc is constructed from medical-grade silicone, a synthetic polymer engineered for biocompatibility and heat tolerance. This material does not degrade into microplastics under normal body temperature or moisture exposure, and does not rely on bleaching, adhesives, or synthetic fibers that trigger chemical leaching concerns. Unlike latex or PVC, medical-grade silicone is inert when properly manufactured, meaning it does not transfer estrogen-disrupting compounds or toxic metabolites into vaginal tissue.
The brand's record and disclosure
Lumma has not published public certification documents (e.g., ISO 10993 biocompatibility testing or third-party heavy-metal assays) accessible to consumers, nor has the company issued a transparent PFAS sourcing policy. The company has not faced regulatory action or product recalls on public record. Absence of disclosure does not confirm contamination, but it means buyers cannot independently verify manufacturing controls for heavy metals or residual solvents in the silicone supply chain.
How it compares in its category
Reusable menstrual discs (silicone or rubber) carry dramatically lower chemical exposure risk than single-use tampons and pads, which involve bleached rayon, synthetic absorbent polymers, and adhesive residues. Within the silicone disc segment, Lumma's lack of third-party certification is typical for smaller brands; competitors like Ziggy and Nixit also do not uniformly publish biocompatibility documentation. Lumma's price point and product design are mainstream for this category.
If you buy it
Rinse the disc thoroughly with water before first use. Clean after each cycle with soap and water or a dedicated menstrual-product wash; do not use harsh bleach, which can degrade the silicone. Replace the disc if you notice visible tears, permanent discoloration, stickiness, or odor that persists after cleaning. Medical-grade silicone is stable up to typical body temperature; avoid prolonged storage in direct sunlight or heat above 60°C, which may accelerate degradation over years of use.
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.”
Heavy metals in silicone feedstock (lead, cadmium, arsenic)
No recalls or test reports documenting heavy-metal leaching from Lumma discs have been published. Medical-grade silicone manufacturing is typically controlled to exclude heavy-metal catalysts, but Lumma does not disclose third-party metal assays.
Residual volatile organic compounds (solvents, catalyst residues) from silicone polymeriza
Improperly cured silicone may retain traces of platinum catalysts or solvent impurities. Lumma's manufacturing and curing protocols are not publicly detailed, so residual off-gassing risk cannot be ruled out but is not documented in reports.
Silicone degradation and microparticle shedding under mechanical stress
Medical-grade silicone is chemically stable and does not fragment into microplastics under normal vaginal use or body temperature. No published data shows Lumma discs shedding particles after typical 1-2 year lifespan.
Bacterial biofilm growth if not cleaned properly
Silicone surface can harbor bacteria if left moist or not air-dried after cleaning. This is a use-maintenance issue rather than a product defect; proper cleaning protocols mitigate risk.
Allergic contact dermatitis or vulvovaginal irritation from uncertified material or residu
Medical-grade silicone is hypoallergenic for the vast majority of users. No adverse-event reports specific to Lumma discs have been published, but users with silicone sensitivity (rare) should patch-test or consult a gynecologist.
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.
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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.