71Good

Butter London Review, Is Butter London Non-Toxic?

The verdict
Butter London averages 71 out of 100 on PFAS Authority's PFAS and toxin screen across the 8 Butter London products graded as of October 2026, and 7 of them reach its 70 point pass mark.
Free to quote with attribution to PFAS Authority and a link to pfasauthority.com/brands/butter-london.

Butter London grades Good on our four-band scale. On disclosure, the brand says nothing publicly about PFAS. See what every brand has published about PFAS for how that compares.

PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.

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  • polypropylene filter housing, carbon/sediment cartridge
  • We found no PFAS statement from the brand
  • Bacterial growth in spent cartridges

3 hazards checked on this product, all on its full breakdown.

  • RO membrane, carbon filters, stainless steel housing
  • We found no PFAS statement from the brand
  • Bacterial and microbial growth in housing and filters

4 hazards checked on this product, all on its full breakdown.

Avocado Vegan Mattress

Avocado

Vegan Mattress

100ExcellentPFAS grade
✓ MADE SAFE Certified✓ Global Organic Textile Standard (GOTS)
  • organic cotton, natural latex, coconut coir, recycled steel coils
  • The brand calls it PFAS-free, which we have not verified
  • Heavy metals

2 hazards checked on this product, all on its full breakdown.

Does Butter London have PFAS, by category

Which Butter London products are PFAS-free? Good or better, best-graded first

Butter London Cakes & Cuppas 6-Piece Nail Lacquer Set

Butter London

Cakes & Cuppas 6-Piece Nail Lacquer Set

75ExcellentPFAS grade
  • Nail lacquer (solvent-based or water-based polish)
  • We found no PFAS statement from the brand
  • Volatile organic compounds (VOCs) and inhalation exposure. Solvent-based nail lacquers release toluene…

4 hazards checked on this product, all on its full breakdown.

Butter London Ice Princess Mini Nail Lacquer Set

Butter London

Ice Princess Mini Nail Lacquer Set

75ExcellentPFAS grade
  • Nitrocellulose, resins, and pigments (standard nail lacquer)
  • We found no PFAS statement from the brand
  • Toluene and other volatile solvents. Standard nail lacquers contain toluene, ethyl acetate, and xylene to…

4 hazards checked on this product, all on its full breakdown.

Butter London Imperial Crown Patent Shine Nail Lacquer Set

Butter London

Imperial Crown Patent Shine Nail Lacquer Set

75ExcellentPFAS grade
  • Nitrocellulose, plasticizers, resins, pigments (typical nail lacquer)
  • We found no PFAS statement from the brand
  • Phthalates. Nail lacquers typically contain phthalate plasticizers to prevent cracking and improve…

4 hazards checked on this product, all on its full breakdown.

butter LONDON Nail Blush Restorative Treatment

Butter London

Nail Blush Restorative Treatment

75ExcellentPFAS grade
  • nail polish/treatment lacquer (typical resin/film-forming base)
  • We found no PFAS statement from the brand
  • Volatile Organic Compounds (VOCs). Nail lacquers inherently release solvents (toluene, ethyl acetate, xylene…

5 hazards checked on this product, all on its full breakdown.

Butter London Nail Foundation Priming Basecoat

Butter London

Nail Foundation Priming Basecoat

75ExcellentPFAS grade
  • Nail polish basecoat (typical acrylics, resins, solvents)
  • We found no PFAS statement from the brand
  • Organic solvent inhalation (toluene, ethyl acetate, butyl acetate). Standard nail polish basecoats release…

2 hazards checked on this product, all on its full breakdown.

butter LONDON Pure Color 21X Nail Lacquer

Butter London

Pure Color 21X Nail Lacquer

75ExcellentPFAS grade
  • Organic solvent-based nail lacquer (typical formulation)
  • We found no PFAS statement from the brand
  • Volatile Organic Compounds (VOCs) and respiratory irritation. Toluene and xylene are standard in conventional…

3 hazards checked on this product, all on its full breakdown.

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Butter London Patent Shine 10X Nail Lacquer

Butter London

Patent Shine 10X Nail Lacquer

75ExcellentPFAS grade
  • nail lacquer (film-forming resins, solvents, pigments)
  • We found no PFAS statement from the brand
  • Volatile organic compounds (VOCs) from solvents. Traditional nail lacquers require toluene, xylene, or…

4 hazards checked on this product, all on its full breakdown.

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Which Butter London products contain PFAS? Poor and Bad, we’d swap these

Butter London Hardwear Shine UV Topcoat

Butter London

Hardwear Shine UV Topcoat

40PoorPFAS grade
  • UV-curable gel topcoat, formula not publicly disclosed
  • We found no PFAS statement from the brand
  • Uncured resin monomers (sensitization/irritation), UV gel topcoats contain monomers that cure under light…

4 hazards checked on this product, all on its full breakdown.

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What to buy instead Good or better, in the categories Butter London sells

Piggy Paint Basecoat & Sealer Nail Polish

Piggy Paint

Basecoat & Sealer Nail Polish

100ExcellentPFAS grade
✓ MADE SAFE Certified✓ Phthalate-free
  • Water-based organic pigments and plant-derived resins
  • The brand calls it PFAS-free, which we have not verified
  • Heavy metals

3 hazards checked on this product, all on its full breakdown.

Nail Polish Piggy Paint

Piggy Paint

Nail Polish Piggy Paint

100ExcellentPFAS grade
✓ Made Safe Certified
  • water-based pigmented lacquer
  • The brand calls it PFAS-free, which we have not verified
  • Volatile organic compounds (VOCs) from resins and solvents

3 hazards checked on this product, all on its full breakdown.

Piggy Paint Showstopper Nail Polish Set

Piggy Paint

Showstopper Nail Polish Set

100ExcellentPFAS grade
✓ PETA Certified Cruelty-Free✓ MADE SAFE Certified
  • organic pigments, plant-based resins, water-based lacquer
  • The brand calls it PFAS-free, which we have not verified
  • Volatile organic compounds (VOCs)

2 hazards checked on this product, all on its full breakdown.

Butter London and PFAS, common questions

Does Butter London have PFAS?
Butter London averages 71 out of 100 on PFAS Authority's PFAS and toxin screen across the 8 Butter London products graded as of October 2026, and 7 of them reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
Is Butter London non-toxic?
Butter London Cakes & Cuppas 6-Piece Nail Lacquer Set is the highest-graded Butter London product we have scored, at 75/100. It depends on the product line rather than the brand, so check the grade of the exact item you are buying.
Which Butter London products are lower concern for PFAS?
The highest-graded Butter London products we have scored are Butter London Cakes & Cuppas 6-Piece Nail Lacquer Set, Butter London Ice Princess Mini Nail Lacquer Set, Butter London Imperial Crown Patent Shine Nail Lacquer Set. That is our model-based estimate from materials and public disclosure, not a lab test.
Which Butter London products should I avoid?
The lowest-graded Butter London products we have scored are Butter London Hardwear Shine UV Topcoat. Each one links to the evidence behind its grade.

Every grade uses the same public rubric. How grades work →