What does Kansas prohibit in med spa advertising?

Short answer
The cited rules do not settle this — they list only advertising bans on healing-arts licensees: false or fraudulent solicitation, claims of professional superiority, guarantees of a service or a painless procedure, and titles implying unlicensed practice.

Kansas writes an unusually specific advertising list into its definition of unprofessional conduct, and two entries reach claims a cosmetic practice is tempted to make. Solicitation of professional patronage through the use of fraudulent or false advertisements, or profiting by the acts of those representing themselves to be agents of the licensee, is unprofessional conduct; so is representing to a patient that a manifestly incurable disease, condition or injury can be permanently cured. Beyond falsity, the statute reaches superiority and guarantee claims directly: advertising professional superiority or the performance of professional services in a superior manner is unprofessional conduct, as is advertising to guarantee any professional service or to perform any operation painlessly. Outside the board, the Consumer Protection Act lets the attorney general or any county or district attorney sue for a declaratory judgment, an injunction or restraining order, damages on behalf of consumers, and reasonable expenses and investigation fees. In lieu of instigating or continuing an action, the attorney general may accept a consent judgment providing for the supplier to discontinue the practice.