Lancome Monsieur Big Waterproof Mascara
Waterproof cosmetic with unknown PFAS status; insufficient transparency.
Lancôme does not disclose PFAS or fluorochemical use in this waterproof mascara. Waterproof formulations commonly contain PFAS-based polymers, but brand provides no ingredient transparency or testing data.
The safe swap
Burt's Bees
Burt's Bees 100% Natural Nourishing Mascara, Black Brown
75/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Undisclosed waterproof mascara formula with unknown coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Waterproof / stain-resistant treatment
water-repellent coating treatments have historically used PFAS.
Category baseline
cosmetics is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Undisclosed waterproof polymer composition and potential VOC/fragrance content
Waterproof mascaras often contain volatile solvents and synthetic film-formers that off-gas, particularly if applied near heat or in humid conditions. Lancôme's lack of ingredient transparency prevents assessment of whether this product includes common irritants like toluene, xylene, or synthetic musks.
Fragrance allergens and sensitization risk
Lancôme mascaras typically include fragrance compounds listed only as 'parfum' or 'fragrance' in full. Waterproof mascaras often use fragrance to mask solvent smell; prolonged contact with eyelids and lashes can trigger contact dermatitis or allergic reactions in sensitive individuals.
Lash and eye irritation from incomplete removal or product buildup
User reviews and dermatology literature document cases of lash brittleness, breakage, and chronic eye irritation linked to waterproof mascara residue; waterproof formulas are inherently harder to remove cleanly than standard mascaras.
What’s reassuring
Heavy metals
No recalls or testing data on record for this product specifically. Standard mascara pigments are generally recognized as safe at retail concentrations, but independent third-party testing of batch-specific lead or cadmium content has not been published.
Source: FDA ↗1,4-dioxane contamination as a synthesis byproduct
No published testing data for this product. 1,4-dioxane is a known contaminant in some cosmetics using surfactants or emulsifiers; waterproof mascaras do use emulsifiers, but Lancôme does not disclose whether purification steps remove this impurity.
The full breakdown
What it's made of and why it matters
Lancôme does not publicly disclose the complete waterproof coating composition in Monsieur Big Waterproof Mascara, listing only broad categories like "film-forming agents" and "water-resistant polymers." Waterproof mascaras typically use synthetic polymers, silicones, or wax-based binders that cling to lashes; the specific resin or silicone blend here is proprietary. This opacity makes independent assessment of volatile organic compound (VOC) content, fragrance allergens, or trace heavy metals in pigments impossible without third-party testing.
The brand's record and disclosure
Lancôme (owned by L'Oréal) does not publish full ingredient lists or safety certifications for most mascaras on their consumer-facing website, relying instead on brief summaries and ingredient declarations on packaging alone. The brand has faced no major recalls for this specific product, but maintains a general pattern of minimal transparency regarding PFAS use in waterproof cosmetics across its range. L'Oréal's corporate PFAS commitments are vague; the company has not committed to phase-out timelines or third-party verification of waterproof formulations.
How it compares in its category
Waterproof mascaras as a class carry higher inherent risk for undisclosed PFAS and synthetic polymer residues compared to water-based mascaras, because the waterproofing mechanism often requires fluorinated or silicone-heavy chemistry. Lancôme Monsieur Big sits in the prestige mid-to-high price tier but offers no transparency advantage over mass-market competitors; many drugstore brands (e.g., Maybelline, CoverGirl) publish more detailed ingredient information. Brands explicitly certified PFAS-free or using natural film-formers (gum arabic, carnauba wax) remain rare in waterproof mascaras and typically carry premium pricing.
If you buy it
Always remove waterproof mascara completely each night with a proper makeup remover or oil cleanser to avoid lash brittleness and eye irritation from product buildup; incomplete removal is a common complaint with this formula. Do not apply to the waterline or inner eyelid where it may contact mucous membranes directly. Store in a cool, dry place away from direct heat to prevent separation or degradation of the coating. If you experience redness, itching, or lash loss, discontinue immediately and consider patch-testing alternatives or consulting an ophthalmologist.
What we don’t know
- Basis
- Model estimate, 35% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Lancôme has made none
Formulations change between production runs, so check the current label. How we grade.
Safer alternatives in Waterproof Mascara
Burt's Bees
100% Natural Nourishing Mascara, Black Brown
Wax, pigments, natural oils (typical mascara base)
Fragrance allergens and undisclosed sensitizers
Limited concern
Bacterial growth and contamination in wax formula
Limited concern
Lower concern; conventional non-waterproof formula with no identified PFAS drivers.
⚠Risky category by default
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.