Do you have or know of a product to bring back the brown color on your leather collars?

You said that your leather collar has a scratch on the surface which has removed a little of the color, and were asking how to restore the color. I just spoke with our local leather shoe maker and he suggested a product called “Fiebings Leather Dye” to touch up the scratch. He said you can find it at most places that carry leather shoes or horse equipment, and there are 3 or 4 different shades of brown. He also suggested seeing if there is a local shoemaker or harness repair place near you. He said in most cases, you could just take the collar in and they can touch it up for you in a couple of minutes and you wouldn’t have to buy a whole thing of the dye.