How long does it take? >> so currently we're at the stage where we're working on mouse experiments. so far what we've seen is a couple of applications we're able to remove all the permanent ink. >> so at this point, where you tried the human experiments yet? >> i wish we were at that stage. so right now we're looking at doing paid experiments set to begin next week which we'll be testing our cream on aged tattoos in pigs. >> but so far, everything has been working smoothly? do you have in your head a projection of when you think you might be able to get this to market? >> it's kind of the mill...