Bobbi Brown · Eyeliner
Bobbi Brown Ultra Fine Eyeliner Brush
Lower concern, no known PFAS risks in standard brush construction, but brand offers no transparency.
Bobbi Brown's eyeliner brush appears to use conventional materials (natural bristles, metal, wood) with no publicly disclosed special coatings or water-resistant treatments that would typically introduce PFAS. The brand does not disclose PFAS practices. No third-party testing or certifications are visible for this product.
Shop Bobbi Brown on Amazon →Material
Natural hair bristles, metal ferrule, wooden handle
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
The Ultra Fine Eyeliner Brush uses natural hair bristles (likely animal-derived), a metal ferrule (typically aluminum or nickel-plated steel), and a wooden handle. Natural bristles do not leach synthetic chemicals or degrade under normal use like synthetic polymers can. The metal ferrule is a potential source of nickel or cadmium exposure if coating is damaged, though contact with eyelids is brief and intermittent, minimizing absorption risk.
The brand's record and disclosure
Bobbi Brown is owned by Estee Lauder Companies and maintains general cosmetic safety compliance but does not publicly disclose material sourcing, metal composition testing, or brush manufacturing standards. The brand has not faced documented recalls or chemical safety controversies specific to brushes. No third-party certifications (cruelty-free, sustainable sourcing) are listed for this product line.
How it compares in its category
Natural-hair eyeliner brushes are among the safest brush category options because they avoid synthetic polymer degradation and shedding of microplastics. Bobbi Brown's price point ($32 USD typical) reflects premium positioning; comparable natural-hair eyeliner brushes from MAC, Sephora Collection, or indie brands offer similar chemical safety profiles at lower cost. Synthetic alternatives eliminate metal ferrule concerns but introduce microplastic shedding potential over time.
If you buy it
Rinse bristles with lukewarm water and mild soap after each use to prevent bacteria buildup and product hardening. Store bristle-end-up in a dry location to prevent mold or mildew in the ferrule-bristle junction. Replace brush annually or when bristles show splitting, splaying, or reduced precision. Avoid soaking in hot water or leaving wet for extended periods, as this can loosen the ferrule and degrade the wooden handle.
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.”
Metal ferrule leachables (nickel, cadmium)
Aluminum and plated-steel ferrules used in brush construction may contain trace nickel or cadmium. Direct, prolonged skin contact is minimal in eyeliner application, but micro-abrasions or use on sensitive skin could increase absorption risk. Bobbi Brown does not disclose ferrule composition or testing.
Bacterial colonization in bristle base
Natural hair bristles trap moisture and product residue at the ferrule junction, creating conditions for bacterial growth if not dried thoroughly between uses. This is a maintenance issue rather than a manufacturing hazard but increases risk of eye infection with poor hygiene.
Natural bristle sourcing and allergenicity
Animal-derived bristles (typically horsehair or badger hair) are not chemically treated but may retain dander, microbes, or allergens from source animals. Risk is low for non-sensitive eyes but unknown for individuals with animal-protein allergies or severe ocular sensitivity.
Wooden handle off-gassing or contamination
Wooden handles in cosmetic brushes are typically untreated or sealed with neutral finishes and do not off-gas volatile organic compounds under normal use. No recalls or complaints specific to Bobbi Brown brush handles are documented.
Microplastic shedding
Natural-hair brushes do not shed microplastics by design. Bristle loss from wear occurs but consists of keratin protein, not synthetic polymers, and poses no chemical hazard.
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 eyeliner 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.