Nowadays laser is the best, but it must be cold light. I have washed it.

As long as you use imported cold light for tattoo removal, you can actually do it, but you must sign a contract with the hospital. Nowadays, many beauty salons will not sign a contract to say how many times they can wash it off. You will be charged more for washing more times. You need to sign a contract, which also states how many times it will be cleaned and how much it will cost. With this contract, you can get your tattoo done with less money and more work.