Basecoat & Sealer Nail Polish vs CND Shellac Xpress5 Top Coat: which is safer?

Where these two actually differ

• We flag Heavy metals in organic pigments, Volatile organic compounds (VOCs) from solvents and Bacterial or fungal growth in water-based formula on the Piggy Paint and not on the Shellac.
• We flag Volatile organic solvents (uncured gel exposure), Photoinitiators (sensitization and phototoxicity), UV/LED lamp exposure during curing and Methacrylate monomer residues (uncured) on the Shellac and not on the Piggy Paint.
• The Piggy Paint is Water-based organic pigments and plant-derived resins where the Shellac is Nail gel polish (proprietary resin blend), which is most of the difference in these two grades.
• The gap is 25 points, wide enough that this is not a close call, and the Piggy Paint is the one to buy.
• We are less certain about the Shellac grade, at 45% confidence against 82%, because it discloses less.