Butter London · Nail Polish
Seasons Everything 6-Piece PC21X Nail Lacquer Set
Lower PFAS concern for nail polish; no known industry drivers for forever chemicals in this format.
Butter London's nail lacquer is a traditional nitrocellulose-based product with no documented PFAS drivers (no water-resistant coating, nonstick, or water-repellent coating treatment needed).
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Nail lacquer (nitrocellulose-based polish)
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
Butter London nail lacquers are nitrocellulose-based polishes, the industry standard formulation. Nitrocellulose itself is inert once dry; risk comes from solvents (toluene, xylene, dibutyl phthalate historically) and additives during application and wear. The PC21X line is marketed as a multi-color set; no reformulation or "3-free" or "5-free" claims appear on public record, meaning solvent safety relies on standard regulatory minimums rather than brand commitment.
The brand's record and disclosure
Butter London maintains a publicly visible website and retail presence but does not publish detailed ingredient lists, safety certifications, or third-party testing results for this product line. No major recalls, banned-substance violations, or contamination incidents are documented for the brand in public safety databases. The brand does not make explicit formulation transparency claims (e.g., "free of X chemical"), suggesting reliance on legal compliance rather than precautionary standards.
How it compares in its category
Standard nail polish carries similar solvent exposure risk across brands unless specifically marketed as "non-toxic" or "7-free." Butter London occupies the mid-market segment: more transparent than mass-market drugstore brands, less certified than premium indie or eco-focused lines. A 6-piece set is typical multi-color value packaging; no evidence this format or brand uses alternative binders that would reduce volatile organic compound (VOC) exposure.
If you buy it
Apply in well-ventilated areas to minimize inhalation of solvent vapors. Allow at least 2 minutes drying time before touching to avoid skin contact with wet lacquer. Avoid ingestion or use on damaged skin. Replace lacquer bottles every 1-2 years if they thicken or separate, as degraded formulas may release more volatile compounds. Removal with acetone-based remover is standard; wear gloves if skin irritation occurs during removal.
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.”
Volatile organic compounds (VOCs) from solvents
Nitrocellulose polish relies on toluene, xylene, and other aromatic solvents for application. Acute inhalation can cause dizziness or headache; chronic exposure has been linked to respiratory irritation in occupational settings. Butter London does not specify solvent types or concentrations for this product, so exposure level cannot be independently verified without testing.
Dibutyl phthalate (DBP) plasticizer
DBP is a common nail polish plasticizer historically used to prevent brittleness but has endocrine concerns. EU restricts it; US allows it. No public statement from Butter London confirms DBP exclusion in PC21X, so presence or absence cannot be confirmed without ingredient testing or brand certification.
Formaldehyde resin cross-linkers
Some nail lacquers use formaldehyde-releasing resins as hardeners. Formaldehyde is a known respiratory sensitizer and volatile. Butter London does not disclose hardener chemistry; assumed standard unless otherwise stated, but lacquer format minimizes skin contact risk compared to other cosmetics.
Heavy metals in colorants and pigments
Lead, cadmium, and chromium are restricted in cosmetic colorants across US and EU. No recalls or contamination reports on record for Butter London polishes. Small volume of pigment per bottle and no ingestion pathway makes exposure minimal even if trace metals are present.
Fragrance allergens
Nail polishes often contain fragrance compounds (e.g., camphor, essential oils) for scent and evaporation; specific ingredients are typically undisclosed proprietary information. Risk is primarily inhalation irritation rather than dermal allergy given brief exposure and rapid drying.
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.
Safer alternatives in Nail Polish
Piggy Paint
4-Piece Nail Polish Set
Organic-based nail polish (water or non-toxic solvent system)
Lower concern; transparent brand with PFAS-free positioning, though third-party PFAS verification not independently confirmed.
✓Verified PFAS-free by a third party
Piggy Paint
Non-toxic Nail Polish Kit for Kids
water-based nail lacquer, non-toxic pigments
Lower concern, water-based formula with explicit PFAS-free claim and third-party Made Safe verification.
✓Verified PFAS-free by a third party
Piggy Paint
Kids' Non-Toxic Nail Polish Basecoat Glitter Topcoat Set
organic pigments, plant-based resins, water-based polish
Lower-concern kids' nail polish with transparent PFAS-free positioning and third-party seal.
✓Verified PFAS-free by a third party
More nail polish 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.