Water + Stain Repellent vs Waterproofing Wax for Leather: which is safer?

Where these two actually differ

• We flag PFAS (long-chain fluorinated compounds) in DWR coating, Inhalation of aerosolized coating or solvent during application, Skin contact and dermal absorption during application or breaking in and Environmental and aquatic persistence of coating residues on the Reshoevn8r and not on the Nikwax.
• We flag Respiratory irritation or fume inhalation during application and PFAS in water repellency treatment on the Nikwax and not on the Reshoevn8r.
• The Reshoevn8r is Proprietary water and stain repellent coating (unspecified DWR formula) where the Nikwax is wax-based waterproofing, 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 Nikwax is the one to buy.
• We are less certain about the Reshoevn8r grade, at 35% confidence against 78%, because it discloses less.