Sadly tattoo ink doesn’t work as a concealer because it is deposited into the skin versus the concealer that sits on top of the skin. If the scar is darker than the skin around it, however, there’s no way to use color to lighten it. If you have a small, pale scar you want to cover up with a tattoo, you’re a good candidate for a scar camouflage tattoo. No matter what, it’s a great idea to talk to a body artist about what effect you want to achieve and what will work best with your skin.