Lumma · Tampons
Lumma Reusable Menstrual Cup S / Pink Love
Lower concern menstrual cup; silicone itself is PFAS-free, but lack of brand transparency on coatings leaves room for doubt.
Lumma menstrual cups are primarily made from medical-grade silicone, a material not inherently associated with PFAS. However, Lumma makes no public statement about PFAS or third-party testing, and the potential for fluorinated coatings or finishes is not explicitly ruled out.
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 and why it matters
Lumma's cup is made from medical-grade silicone, a synthetic polymer that does not absorb menstrual fluid and resists bacterial colonization far better than absorbent materials like cotton or rayon. Medical-grade silicone is non-toxic, hypoallergenic, and chemically stable across normal body temperature ranges. Unlike tampons, which shed fibers and create a favorable environment for Toxic Shock Syndrome pathogens, a silicone cup physically contains rather than absorbs fluid, reducing infection risk.
The brand's record and disclosure
Lumma provides no public third-party certification (FDA 510k clearance, CE marking, or ISO 13485 medical device documentation) readily visible on its website or packaging, which is a transparency gap for a product marketed as medical-grade. The brand does not publicly disclose details about manufacturing origin, coating additives, or testing for heavy metals or contaminants. No major safety recalls or legal disputes involving Lumma cups have been documented in public records.
How it compares in its category
Reusable menstrual cups as a category eliminate the repeated microfiber and chemical exposure inherent to disposable tampons, which often contain chlorine bleach residues, dioxins from processing, and undisclosed fragrance additives. Lumma's silicone composition is comparable to established brands like Saalt, Ruby Cup, and Keeper, which offer similar material safety profiles. The lack of third-party certification is not unique to Lumma but is more common in smaller brands; market leaders like DivaCup hold FDA clearance.
If you buy it
Boil the cup for 5-10 minutes before first use to sterilize it. Empty, rinse, and reinsert every 4-6 hours; do not exceed 12 hours continuously to prevent odor and biofilm buildup. After your cycle, boil again for 5 minutes or use hydrogen peroxide soak if silicone discoloration occurs; this does not affect safety. Inspect the cup annually for cracks, tears, or loss of flexibility; silicone typically lasts 5-10 years with proper care.
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.”
Toxic Shock Syndrome (TSS) risk
Menstrual cups inherently carry lower TSS risk than tampons because they do not create the oxygen-depleted, absorbent environment that favors Staph aureus toxin production. However, improper cleaning, extended wear beyond 12 hours, or microtears allowing bacteria entry remain minor concerns; no TSS cases specifically tied to Lumma cups have been documented.
Silicone degradation and leaching
Medical-grade silicone does not leach chemicals under normal vaginal pH and temperature conditions. Lumma has not disclosed degradation studies, but silicone's chemical structure (Si-O bonds) makes it inherently resistant to hydrolysis and microbial attack. Discoloration over time is cosmetic, not a sign of failure.
Allergic contact dermatitis
Silicone is hypoallergenic and does not trigger sensitization in the vast majority of users. Vulvovaginal reactions to silicone cups are rare; documented cases typically involve impurities or adhesive in the stem rather than the silicone itself. No specific allergen alerts for Lumma have been reported.
Bacterial growth and biofilm formation
If left in place beyond 12 hours or stored wet without drying, any menstrual cup can accumulate odor-causing bacteria and biofilm on the interior surface. Lumma provides minimal guidance on storage protocols; improper air-drying between cycles increases this risk. This is a use-error issue, not a material defect.
Heavy metal or contaminant residue in manufacturing
Lumma does not publicly disclose heavy metal testing or manufacturing facility audits. Silicone production can introduce trace platinum or tin catalysts if not properly purged; medical-grade material should meet USP Class VI biocompatibility standards, but Lumma has not confirmed this certification. The risk is low but transparency is absent.
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.
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More tampons 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.