Spa treatments and tattoos

I just started esthetician school and as a part of it we have to give spa treatments to each other..We don't do anything like microdermabrasion or peels, just exfoliation and salt scrubs..I am just wondering if this will mess up my tattoos? My teacher said no, but she doesn't have any ink and I wanted to get a second opinion..thanks in advance everyone!

No, it won't affect your tattoo if it's fully healed.