Repel + Revive + Refresh Shoe Care Kit vs Waterproofing Wax for Leather: which is safer?

Where these two actually differ

• We flag Formulation opacity and undisclosed active ingredients, Inhalation exposure from spray application, Volatile organic compounds (VOCs) from propellants and solvents and Skin or eye contact irritation from concentrate on the Jason Markk 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 Jason Markk.
• The Jason Markk is proprietary shoe care formulations with water/stain repellent treatments 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 Jason Markk grade, at 45% confidence against 78%, because it discloses less.