The Ultimate Box Pack vs Waterproofing Wax for Leather: which is safer?

Where these two actually differ

• We flag Volatile Organic Compounds (VOCs) and solvent inhalation, Skin and eye irritation from spray contact, Lung deposition from repeated spray exposure and Coating degradation and microparticle shedding on the Crep Protect 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 Crep Protect.
• The Crep Protect is Silicone-based waterproof coating on fabric/canvas 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 Crep Protect grade, at 45% confidence against 78%, because it discloses less.