If you walk into a studio in Cardiff for a tattoo, a cosmetic piercing, semi-permanent make-up or electrolysis, the person treating you must hold a licence issued by the local authority. Their premises must be approved. Working without one is an offence. If you walk into the unit next door for botulinum toxin or dermal filler, none of that applies. That is not an oversight anyone is hiding. It is the settled legal position in Wales, and on 15 October 2026 the Senedd's own res