Shellac · Nail Polish & Top Coat
CND Shellac Xpress5 Top Coat
No public PFAS transparency; cosmetic gels rarely disclose formulation.
This gel polish lacks any publicly available PFAS disclosure or testing data. Gel cosmetics can contain fluorinated compounds, but the brand makes no statements about formulation.
The better-graded swap
Piggy Paint
Piggy Paint 4-Piece Nail Polish Set
100/100 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
Nail gel polish (proprietary resin blend)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
You may also be interested in
Top-graded picks in the categories readers replace first, every one scored on the same rubric.
Aqua Pure
3M Aqua-Pure AP802B Whole House Filter Housing
- 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. See all of them.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- 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. See all of them.
Avocado
Vegan Mattress
- 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. See all of them.
Is CND Shellac Xpress5 Top Coat non-toxic? What it is made of
CND Shellac Xpress5 is a hybrid gel-polish top coat built on a proprietary resin blend that cures under UV or LED lamps. Like all gel polishes, it contains methacrylate monomers (likely acrylates), photoinitiators to trigger curing, and volatile organic solvents that remain in the uncured liquid. The resin matrix itself is relatively stable once cured and does not leach significantly into skin during wear, but the uncured product and curing process pose the main exposure points.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Volatile organic solvents (uncured gel exposure)
Gel polishes typically contain solvents like ethyl acetate, butyl acetate, or dimethyl phthalate to achieve proper viscosity before curing. CND does not disclose which solvents are in Xpress5. Inhalation during application in poorly ventilated spaces can cause headaches, respiratory irritation, and dizziness.
Photoinitiators (sensitization and phototoxicity)
Gel polishes use photoinitiators (commonly camphorquinone or similar molecules) to trigger UV or LED curing. These compounds can cause allergic contact dermatitis with repeated skin exposure, particularly around the cuticle and nail fold. No public data on CND's specific photoinitiator formulation exists.
UV/LED lamp exposure during curing
Use of UV or LED lamps for curing carries a documented cumulative skin cancer and photoaging risk, especially with frequent professional or at-home gel manicures. This is a category-wide hazard independent of polish formulation. LED lamps emit narrower wavelengths than UV but still pose risk with repeated exposure.
Methacrylate monomer residues (uncured)
Gel polishes may retain small amounts of uncured methacrylate monomers that can migrate into skin or saliva if polish is damaged, chipped, or if cuticles are irritated. These monomers are known skin sensitizers; some users report allergic reactions after repeated gel manicure exposure. CND does not publish residual monomer testing data.
Lack of ingredient transparency
The proprietary formulation claim prevents independent assessment of banned or restricted substances. Without disclosed ingredient lists, consumers and technicians cannot identify potential allergens or make informed choices about substitutes if sensitivity develops.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
The full breakdown
The brand's record and disclosure
CND (Creative Nail Design) is owned by Revlon and does not publish detailed ingredient lists or safety data sheets publicly for Shellac products. The brand has no known third-party certifications (such as 10-Free or cleaner beauty standards) and has not issued transparency reports on banned substances or formulation changes in response to regulatory pressure. No major product recalls or contamination incidents have been documented for CND Shellac in widely available safety databases.
How it compares in its category
Shellac Xpress5 is positioned as a premium, fast-curing product in the gel-polish market. Most gel top coats in this category share similar chemistry and exposure profiles; some smaller brands voluntarily disclose being '10-Free' or '13-Free' (excluding specific solvents and plasticizers), whereas CND does not. The lack of public ingredient information is more restrictive than leading competitors like Gelish or Essie Gel, which provide some formulation transparency on their websites.
If you buy it
Use in a well-ventilated space or nail salon with active air extraction to reduce inhalation of uncured solvent vapors and photoinitiator aerosols. Avoid direct skin contact with the uncured gel and do not apply near eyes. Cure under a calibrated UV or LED lamp (typically 30-60 seconds) according to instructions; overexposure to UV is a separate skin risk. Remove by soaking in acetone and gently buffing rather than peeling, which can damage nail beds; replace the top coat every 2-3 weeks or when lifting occurs to avoid prolonged contact with degrading polish.
What we don’t know
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Shellac has made none
Formulations change between production runs, so check the current label. How we grade.
Better-graded alternatives in Nail Polish & Top Coat
Piggy Paint
Basecoat & Sealer Nail Polish
- 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. See all of them.
Piggy Paint
Nail Polish Piggy Paint
- 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. See all of them.
Piggy Paint
Showstopper Nail Polish Set
- 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. See all of them.
More nail polish & top coat 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.