Trim any loose fibers around scratches with a pair of scissors. Cutting as close to the leather as possible will reduce the appearance of scratches.
Combine 1 part vinegar and 2 parts linseed oil in a spray bottle. Spray the entire couch and leave overnight. Wipe clean with a soft cloth. The vinegar will clean the leather while the linseed oil acts as a conditioner.
Apply leather dye. Dye kits come in a variety of colors and formulas so be sure to choose the right one with the help of a store associate or customer service representative for the manufacturer. You may need to mix colors to match the exact shade of your couch.
Buff the couch with a leather conditioner and a soft cloth. The dye will reduce the appearance of scratches and scuff marks; the conditioner will enhance the leather’s overall appearance.