this is what i would recommend
Leather Doctor® d’Urine-2.1:
It's for Pigmented, Aniline, Nubuck, Suede, Hair-on and Woolskin leather types.
This is a pH 2.2 aqueous leather urine stain neutralizer.
It’s for neutralizing the ammonia and alkaline phosphorus salt found in urine from “reverse-tanning� the leather.
you will also needed some other products from him as well
Prep Cleaning:
1] Dry soil removal - use leather Eraser-4 for all smooth leathers and nubuck Eraser-5 for nubuck and suede.
2] Remove the protein component first - use d’Protein-11.0.
3] Deodorize – use d’Odor-4.5.
Instruction:
1] Spray and saturate d’Urine-2.1 sufficiently deep by brush agitation.
2] Dwell 10 to 30 minutes for chemical reaction to occur then extract until towel shows clean.
3] Rinse until rag shows clean to a healthy squeak with Rinse-3.0.
4] Control bacteria activities with d’Bacteria-3.7.
Optional:
1] Remove foreign contamination from within the leather structure – use Hydrator-3.3.
2] Rejuvenate to soften and strengthen leathers – use Fatliquor-5.0.
3] Impart a classical leather scent to mask – use leather Scent-B, D, S or W.
