Waterproofing Wax for Leather vs Advanced Formula Fabric Upholstery Cleaner Vintage: which is safer?

Where these two actually differ

• We flag Respiratory irritation or fume inhalation during application and PFAS in water repellency treatment on the Nikwax and not on the Resolve.
• We flag Surfactant residues on fabric, Fragrance allergens, Preservative agents (undisclosed composition) and Spray inhalation risk on the Resolve and not on the Nikwax.
• The Nikwax is wax-based waterproofing where the Resolve is Aqueous surfactant cleaner formulation, which is most of the difference in these two grades.
• We are less certain about the Resolve grade, at 45% confidence against 78%, because it discloses less.