Nubuck - How to remove unknown stain from nubuck cushion?

1] For Protein based stains from animal and body fluid:

Start with d’Protein-11.0, agitate with Nubuck Brush-2 and extract.
Follows with Rinse-3.0 and extract with cotton swab or towel; wait till dry; and inspect.

2] For Tannin Stains from vegetable and plant fluid:
Apply d’Tannin-3.5; agitate and extract; and leave to dry.

3] For Blood Stains
Apply d’Tarnish-1.3; agitate and extract; and leave to dry.

4] Thereafter follows with Rinse-3.0; when the stain is satisfactorily removed.

5] When dry use Nubuck Eraser-5 for a re-nap.

Let see some pictures!

Roger Koh
Leather Doctor®