Benefit · Waterproof Mascara
Benefit They're Real! Magnet Lengthening Mascara
Lower PFAS concern, but Benefit offers no transparency on waterproofing chemistry.
They're Real! Magnet is a conventional mascara with nylon fibers and wax-based waterproofing. Benefit publishes no PFAS statements and does not disclose waterproof treatment methods.
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water-resistant wax/polymer mascara formula with nylon fibers
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
cosmetics 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
They're Real! Magnet uses a wax-polymer base (typically film-formers like acrylates) combined with nylon microfibers to build volume and hold. Waterproofing in mascaras traditionally relies on silicone or wax barriers rather than PFOA-class fluorochemicals, though Benefit does not publicly disclose the exact waterproofing agents. Nylon fibers themselves are inert when applied to lashes; concern centers on the formula matrix and any surfactants used to suspend pigments and fibers.
The brand's record and disclosure
Benefit (owned by LVMH) has not published ingredient transparency beyond standard labeling or PFAS-specific sourcing commitments. The brand does not highlight third-party testing, cruelty-free certification, or heavy-metal screening for pigments. No recalls or substantiated safety incidents have been documented for this specific mascara. Benefit's parent company has faced broader scrutiny on ingredient transparency in cosmetics lines but not flagged safety violations for this product.
How it compares in its category
Waterproof mascaras across the category (Maybelline, L'Oreal, MAC) use similar wax-polymer-fiber architectures; Benefit's formulation is conventional, not an outlier for toxicity risk. Unlike heavy silicone waterproof formulas, water-resistant wax bases generally present lower occlusion and easier removal. Price point and brand positioning do not correlate with ingredient safety in this category; clinical performance data for They're Real! Magnet is adequate but marketing-driven rather than safety-tested.
If you buy it
Remove daily with warm water and a gentle cleanser or micellar water to minimize lash breakage and eye irritation from fiber buildup. Do not apply heat (hair dryers, saunas) directly to the eye area, as polymer films can soften and migrate. Replace every 3 months to prevent bacterial colonization in the tube and formula degradation. If you develop eye irritation, discontinue and patch-test the formula on inner arm; sensitivity to fragrance or preservatives is the most common adverse outcome.
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 pigments (iron oxides, ultramarines)
Benefit does not publish heavy-metal (lead, cadmium, arsenic) assay data for They're Real! Magnet. Standard FDA-approved colorants (CI 77499, CI 77007) are low-risk when used in formulation, but no independent third-party testing on file confirms absence of trace contaminants in this product.
Formaldehyde-releaser preservatives (imidazolidinyl urea, DMDM hydantoin)
Mascara formulas often contain preservatives that release trace formaldehyde to prevent bacterial growth. Benefit does not disclose preservative identity for They're Real! Magnet. If present in typical concentrations (under 0.2%), this poses minimal eye risk during brief daily use, but repeated application over years may increase cumulative exposure.
Fragrance allergens and undisclosed fragrance chemicals
They're Real! Magnet carries a detectable scent; fragrance ingredients are protected as 'trade secrets' under US law and not itemized on packaging. Common mascara fragrances include limonene and linalool (potential contact allergens). Eye-area application increases sensitivity risk compared to face products; individuals with fragrance sensitivity should patch-test.
Nylon microfiber shedding and eye irritation
Nylon fibers in the formulation can shed into the eye or upper lash line if the formula degrades or is applied excessively. While not toxic, loose fibers cause mechanical irritation, foreign-body sensation, and temporary inflammation. Risk is mitigated by careful application and 3-month replacement cycles.
Waterproofing polymer residue and eye occlusion
Water-resistant wax-polymer matrices adhere strongly to lashes and can trap moisture and bacteria if not fully removed nightly. Incomplete cleansing may lead to contact dermatitis, bacterial conjunctivitis, or stye formation, especially in contact lens wearers. No ingredient-specific toxicity is established, but occlusive burden increases with extended wear.
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.
More waterproof mascara 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.