Waterproofing Wax for Leather vs Spot & Pre-Treat Dual Action Carpet Cleaner: 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 Rug Doctor.
• We flag Surfactant residue and skin/respiratory irritation, Volatile organic compound (VOC) off-gassing and Carpet fiber degradation if applied repeatedly or excessively on the Rug Doctor and not on the Nikwax.
• The Nikwax is wax-based waterproofing where the Rug Doctor is aqueous cleaning solution, surfactants, which is most of the difference in these two grades.