I've used this and I've used the TKTX brand and find Zensa more reliable for numbing. I have tons of tattoos and rarely use cream but for some spots I have. Zensa was used on my second calf tattoo, my upper stomach/ribs, and the back of my knee. It absolutely helped. It wasn't completely numb like some others claim they experienced, but I'd give it a 4/10 which on those spots makes a HUGE difference! It does wear off though, so be warned when it does it will hurt a LOT more if they need to keep going!!