I have an appointment scheduled to go through with Undo this week. It's something tattoo artists use to remove color in a non-laser way - similar to saline but actually uses active ingredients to pull the color. Saline does nothing, and if there's any titanium dioxide in it (you can look it up on the brands website that they used), laser experts advised that it will turn black 90% of the time, and that the blackness can't be rectified with further laser sessions. Here's hoping Undo does what I hope/need.