RMS Beauty · Waterproof Mascara
RMS Beauty Straight Up Volumizing Peptide Mascara
Lower concern; typical mascara formula with no known PFAS risk factors, but brand offers no public disclosure.
RMS Beauty's mascara is a conventional cosmetic pigment and peptide blend with no documented waterproofing treatment, nonstick coating, or PFAS-heavy ingredients in the product description. The brand does not publicly disclose PFAS testing or claim PFAS-free status.
Shop RMS Beauty on Amazon →Material
Mascara formula with peptide actives; standard pigments and film-formers
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
RMS Beauty Straight Up is a waterproof mascara formulated with peptide actives claimed to support lash strength, plus standard film-forming polymers and iron oxide or synthetic pigments typical of mascaras. Waterproof mascaras use water-resistant waxes and silicones to adhere pigment; peptides themselves are amino acid chains with no established toxicity at cosmetic concentrations. The formula avoids talc (a category risk for asbestos contamination) and is free of parabens according to RMS brand positioning.
The brand's record and disclosure
RMS Beauty markets itself as a clean beauty brand with emphasis on minimal, plant-derived ingredients and transparency. The company does not publicly disclose full ingredient safety testing or third-party certifications beyond cruelty-free status. No recalls or regulatory warnings are on record for this mascara. Brand does not address PFAS disclosure explicitly, which is typical across most independent mascara makers; waterproof mascaras are not a known vector for intentional PFAS addition.
How it compares in its category
Waterproof mascaras universally rely on wax and silicone matrices to achieve water resistance; RMS Straight Up's peptide marketing differentiates it functionally but does not change chemical hazard profile versus conventional waterproof brands like L'Oreal or Maybelline. Unlike cream or gel eyeliners, mascaras carry lower systemic absorption risk because contact is brief and topical. RMS positions cleaner sourcing than mass-market competitors, though independent testing of full formulation is not publicly available.
If you buy it
Apply only to lash tips and avoid contact with eyes; if irritation occurs, discontinue and rinse thoroughly. Waterproof mascaras require makeup remover or oil cleanser for removal; prolonged wear without proper cleansing can promote bacterial growth at the lash line. Replace every 3 months after opening to prevent microbial contamination. Do not use if the tube has been open for over 6 months or shows separation or odor change.
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 synthetic iron oxide pigments
Iron oxide pigments (CI 77491, CI 77492, CI 77499) are FDA-approved colorants with low dermal absorption; no contamination reports for RMS brand mascaras. Lead and cadmium are not intentional additives in modern waterproof mascara formulations.
1,4-dioxane (humectant byproduct)
Waterproof mascaras may contain ethoxylated ingredients (common in film-formers) that can harbor trace 1,4-dioxane as a manufacturing byproduct. RMS does not disclose third-party testing for this contaminant, though levels in leave-on cosmetics are typically below regulatory concern.
Formaldehyde releasers in preservative systems
RMS Beauty markets paraben-free formulations and typically uses alternative preservatives (phenoxyethanol or plant extracts). No evidence of formaldehyde-releasing agents (imidazolidinyl urea, DMDM hydantoin) in this product line.
Bacterial and fungal contamination in tube applicator
All mascara wands are contact vectors for eye microbiota; waterproof formulas do not inherently reduce this risk. Proper removal and replacement schedules are the primary mitigation. No brand-specific recalls exist for contamination.
Fragrance allergens and sensitizers
RMS Straight Up ingredient list does not typically declare fragrance, suggesting minimal or no added scent. If present, undisclosed fragrance components could trigger contact dermatitis in sensitive individuals; full ingredient declaration would clarify this.
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.