Medical spas in Missouri

We found no Missouri statute or rule that names who may inject Botox or fillers. The rules below apply to any delegated care.

A physician may delegate to a registered nurse the authority to administer or dispense drugs and provide treatment, if it is within the nurse's scope of practice and consistent with the nurse's skill, training and competence. The arrangement may be a written agreement, protocols or standing orders, and must be in writing and signed and dated by a physician before it starts.¹ Under the Board's rule the collaborating physician must be immediately available for consultation at all times, in person or by telecommunications. The arrangement is reviewed at least once a year and kept eight years. The physician reviews at least 10 percent of the services delivered, with documentation submitted at least every fourteen days, and for acute or chronic care is present at least once every two weeks. The authority may not be passed on to anyone else.² Physician assistants have their own arrangement with the same 10 percent review and fourteen-day documentation.³ A collaborating physician may serve no more than six full-time-equivalent physician assistants, advanced practice registered nurses or assistant physicians, with an exception for hospital employees.⁴ Practising nursing includes giving medications and treatments as a licensed prescriber orders.⁷ The medical practice chapter does not apply to nurses practising under the nursing chapter, and does not stop a physician delegating responsibilities to them.⁸

A physician can be disciplined for delegating to a person who is not qualified by training, skill, competency, age, experience or licence, and for helping someone practise without a licence.⁶ We found no Missouri Board of Nursing position on cosmetic injections, and no medical assistant licence or scope rule. The esthetician statute lists the services of a Class E licence and does not name injections.⁵

Ask who will inject you, what their licence is, and which physician is responsible for your treatment.

We found no Missouri statute, Healing Arts Board rule, nursing rule or cosmetology rule that regulates cosmetic lasers or intense pulsed light, and no licence or training hours for the person who runs one.²¹⁴ A Missouri court wrote in 2007 that "laser hair removal is wholly unregulated in Missouri" and that "there are no statutes or regulations governing laser hair removal treatments". That is a 2007 statement in a case decided on another question, which we read on a mirror. The sections of the law we read since contain no laser provision.⁹ Some vendors say Missouri requires physician supervision of lasers. We found no Missouri text that says so.

The esthetician statute lists "mechanical, electrical apparatuses or appliances" and cosmetic preparations for cleansing, stimulating and beautifying the skin, and hair removal by means other than the electric needle. It does not name lasers.⁵ The cosmetology board's rules had no hit for "laser" or "pulse".¹⁴ If you are booked for a laser or light treatment, ask who will run the device, which physician is responsible, and whether that physician will be on site.

We found no Missouri text on chemical peels or microneedling. The esthetician licence covers cleansing, stimulating, manipulating and beautifying the scalp, face, neck, ears, arms, hands, bust, torso, legs or feet with cosmetic preparations, antiseptics, tonics, lotions or creams, or with mechanical or electrical appliances. The statute limits phenol to 10 percent, so a stronger phenol product is outside the licence.⁵ We found no rule on deep peels, injection or device bans. Ask who will do the treatment, what their licence is, and whether a physician or nurse oversees it.

We found no Missouri board statement or rule on IV hydration or med spa IV therapy, and none of the Healing Arts Board's rules uses the word "intravenous".² A registered nurse may give treatments as a licensed prescriber orders, and nurse practitioners and physician assistants work under their collaborative arrangements.⁷¹ Ask who ordered the drip, who evaluated you, and who will place the IV.

We found no Missouri Board of Pharmacy or Healing Arts Board statement on semaglutide or tirzepatide. Ask whether your medicine is FDA-approved or compounded, and which pharmacy prepares it.

We found no Missouri med spa statute, licence or registration. The Healing Arts Board's pages list no med spa registration.¹⁵ Nothing we read defines a medical director for aesthetics. The Board's rule asks for a collaborating physician who is immediately available at all times and who reports each collaborating nurse to the Board within 30 days of a change and at each renewal.²

Senate Bill 144 of 2025 is about advanced practice registered nurses, not medical spas. It would have changed sections 334.104, 335.016 and 335.019 and does not mention lasers, cosmetics or medical spas.¹⁰ A bill tracking page reports that a committee substitute passed committee on 15 April 2025 and that the bill is dead.¹¹

No Missouri statute or Board statement we cite says who may own a medical practice. Whether a particular spa is organised lawfully is a question for a health-care lawyer.