The short answer
Microneedling consent must name the device and needle depth, state whether the treatment is being performed as a cosmetic or a medical procedure under your state's rules, disclose infection, scarring, post-inflammatory hyperpigmentation and granuloma risk, identify any topical or serum applied during treatment, and record the operator's licence and supervision.
Is microneedling a medical procedure?
It depends on how deep the needles go and what claims the device makes. FDA classified the microneedling device for aesthetic use as a Class II device subject to special controls and 510(k) premarket notification, codified at 21 CFR 878.4430, defining it as a device using one or more needles to mechanically puncture and injure skin tissue for aesthetic use. FDA's guidance on microneedling products turns on whether the product penetrates living skin and what claims the manufacturer makes — devices that do not penetrate living skin and carry only cosmetic claims are generally not regulated as devices. Industry and several states use roughly 0.3 mm as the practical dividing line, but that number is a convention rather than a figure written into the classification regulation.
That distinction drives everything downstream. A cosmetic-claim, superficial device may fall within esthetician scope in some states. A device that wounds living dermis is, in most states' analysis, a procedure that penetrates or removes living tissue — and therefore the practice of medicine.
How do states divide it?
| State | Position |
|---|---|
| Texas | Anything penetrating living tissue is a nonsurgical medical cosmetic procedure under Texas Medical Board rule 22 TAC § 193.17; a physician may delegate to trained staff under written protocols with supervision. Superficial cosmetic devices may fall within esthetician scope |
| California | The Board of Barbering and Cosmetology limits estheticians to work on the epidermis; treatment penetrating below it falls outside cosmetology scope and into medical practice |
| Florida | The Board of Cosmetology's rules exclude bodily intrusion from cosmetology scope; deeper microneedling sits with medical practice under physician supervision |
| Several others | Boards have issued position statements rather than statutes; check for current advisory opinions, which change more often than rules |
Before you write a consent, settle the scope question. A beautifully drafted consent signed before an out-of-scope treatment documents an unlicensed-practice allegation.
What must the consent actually disclose?
The device and settings, by name — manufacturer, model, needle cartridge, and the depth used per anatomic zone, recorded per treatment. Depth is the single most important variable and the one most often left out of the record.
The material risks: pinpoint bleeding and prolonged erythema, oedema, bruising, infection including bacterial and herpes simplex reactivation, post-inflammatory hyperpigmentation with elevated risk in Fitzpatrick IV–VI, scarring, tram-track marking, milia, and granulomatous or hypersensitivity reactions to topicals driven into the dermis.
That last item is where the biggest exposure sits. Anything applied during or immediately after microneedling is being delivered into breached skin. Topicals not formulated for intradermal delivery — including many cosmetic serums, vitamin C preparations and exosome products — have been associated with granuloma formation. Name the exact product applied, in the chart and on the consent, and confirm it is intended for post-procedure use. If platelet-rich plasma is used, that is a separate procedure with its own consent, its own scope-of-practice analysis and its own handling requirements.
Then the screening: isotretinoin within the practice's stated interval, active acne or infection, herpes labialis history and prophylaxis, keloid tendency, anticoagulants, pregnancy, recent injectables or resurfacing, autoimmune or connective tissue disease, and current radiation or chemotherapy.
What this means for your paperwork
Each session should generate a record showing date, operator name and licence, supervising practitioner where required, device and cartridge, needle depth by zone, number of passes, topical anaesthetic used and contact time, any product applied during or after treatment with lot number, immediate response, and aftercare given.
Keep the consent treatment-specific and re-signed for each series rather than once at enrollment, and update the health history every visit — patients start isotretinoin, get pregnant and book fillers between appointments. Set out the expected series in writing, because a patient who believed one session would resolve acne scarring is a complaint waiting to happen.
Finally, keep the single-use policy visible in your written procedures: cartridges are single-patient, single-use, and the disposal and bloodborne pathogen protocol should be documented with training records to match.
Related questions
This answer is educational and is not legal or medical advice. Requirements vary by state and change over time — verify with your own legal and clinical advisors before applying anything here in practice.