My friend's tattoo grinding in Weifang Boya is quite good, much better than laser tattoo washing, and the effect is good and immediate. What he did there was microcrystal grinding and laser tattooing, so that the pigment was completely removed and it was not easy to leave scars. You'd better go there to do it. Don't just find a place to wash and leave a scar. It will be troublesome to do it then.