"But I'm Certified" — The Most Dangerous Sentence in Esthetics

Your certification is not a license — and confusing the two is the fastest way to lose one.

In this episode I take on esthetician scope of practice: what your license actually permits, why there is no single national answer, and the one question most state boards use to draw the line between esthetics and medicine. I go through chemical peel depth, microneedling laws in six states, RF microneedling, the medical director myth, and the professional liability gap that nobody explains at a weekend certification course.

This episode is general education, not legal advice. Scope rules vary by state and change regularly. Always verify with your state board directly and request written confirmation before adding any service to your menu.

Read the full transcript

Somewhere right now, there's an esthetician finishing a two-day certification course that she paid $1,200 for. She has a certificate with her name on it, in a nice pretty font. There's a device rep already texting her about financing for the product or the modality. And this person believes — sincerely, completely — that she is allowed to perform this service.

But she might not be.

And here's the part that should make all of us a little uncomfortable: nobody in that room had any obligation to tell her that what she's getting certified in is not in her scope of practice.

So today I'm going to talk about scope of practice. And it's not going to be the fun version. It's the version where I tell you that the most dangerous sentence in our industry is: but I'm certified to do this.

Why I'm doing this episode

What prompted me was that I went to the International Congress of Esthetics and Spa in Long Beach yesterday, and there were tons of vendors selling devices, modalities and products that are out of scope of practice for estheticians in California specifically.

ICES is a national show — it's not just for California estheticians — so that's why those vendors are there. They're selling to estheticians from different states where these things may be in scope.

Even the California State Board of Barbering and Cosmetology sends out a notice about this. Just because it's at an esthetics convention doesn't mean it's in scope.

So I want to dive into this a little, without being super specific about states, just to raise awareness that we are licensed by our states — most of us — and that with that license comes the duty and the responsibility of knowing what you can and can't do, and what you can do safely.

What scope of practice actually is

I'm going to define the terms, because this is where the confusion starts.

Our license is a grant of permission from our state. It's a legal document that says: here is the set of things you may do to another human being's body in exchange for money. Sounds a little weird, but that's pretty much the gist of it.

That set has edges. Those edges are defined by statute, by administrative rule, and sometimes by board advisory opinions that never made it into the statute at all.

A certificate is something else entirely. A certificate is a private party — a manufacturer, an academy, a continuing education company — saying that you attended their training. There is real, valuable learning in that. It is not a legal authorization, because those companies have no power to grant one.

Certification teaches you how. Licensure determines whether you can.

Why there is no single answer

The second thing that trips people up is that there isn't really one answer to any of these questions — what's in scope, what's not — because there is no federal esthetics license.

We have 50-plus states plus territories, each with their own cosmetology or esthetics board, and frequently a second board, the medical board, with an entirely separate opinion about the same procedure. Sometimes those two boards disagree with each other. Sometimes they have never formally addressed the treatment you're being sold.

So when you're researching online and get a dozen different answers, that's not because the internet is broken. It's because the answers genuinely are different depending on which side of the state line you're standing on.

The one question that explains everything

I want to give you one mental model, because if you retain nothing else from this episode, I want this to be the thing.

Most states draw scope at the same place: does this treatment act on the surface of the skin, or does it wound living tissue underneath?

Surface work is the stratum corneum, the epidermal layers. That's esthetics. That's what our licenses were built for — cleansing, extraction, superficial exfoliation, hair removal, massage.

Wounding the living dermis is, in most states, the practice of medicine. Not because it's scary, not because we're not skilled, but because the legal definition of medicine in nearly every state includes treatments that penetrate or remove living tissue.

Once you have that in line, the specific rules stop looking arbitrary. Peel depth rules — that's the line. Needle depth thresholds — that's the line. Laser and energy devices — that's the line, because we're delivering energy below the surface.

Every scope fight in our industry is an argument about where exactly that line sits, not about whether it exists.

And we're starting to see a lot of companies push that line. "Well, it doesn't penetrate the dermis, because it's only at 0.02." But think about it — our epidermis is about the width of a sheet of paper. That's not very thick, and it's easy to puncture. So when we're talking about nano needling, nano channeling, whatever we're calling it — and there are so many different names I can't possibly get into all of them on this episode — that matters.

The chemical peel percentage myth

There's a myth that there's a legal percentage for peels. This comes up in every esthetician group I have ever been in. Somebody asks what percentage they're allowed to use, and 40 different people from 40 different states confidently answer with 40 different numbers.

The number is a myth. Or more precisely: the number is a proxy that people mistook for the rule.

Concentration is one variable among several. The acid itself matters. The pH matters enormously. Contact time matters. Number of layers matters. Whether the formulation is buffered matters too. A 20% acid left on far too long can absolutely wound the dermis. A higher-percentage acid at a controlled pH can stay entirely superficial.

So what do regulators actually care about? The depth of action. Where did this treatment do its work? If the answer is the surface, you're generally fine in most states. If the answer is the living dermis, you have performed a medical procedure regardless of what the bottle said.

Some states do publish concentration ceilings, and if yours does, follow it — but understand what that number is. It's a rough administrative shortcut for depth. It is not a safe harbor that protects you if the treatment went deeper than intended.

A note on the branded blended peels, the ones combining TCA with salicylic, phenol, retinoic acid. Those are frequently medium-depth by design — the acid by itself is a medium-depth acid. The brand name doesn't change the classification, and neither does the training the brand provided.

At the far end: deep phenol peels are not within esthetician scope anywhere, in any state, under any supervision arrangement. Phenol carries systemic absorption risk significant enough that these are performed with cardiac monitoring. So if anyone is trying to sell you a weekend course on a phenol peel, please just run away. If you've ever seen a phenol peel done, or looked at it online, it is pretty gnarly. It's pretty intense. Personally, I would not want the responsibility of that recovery, that administration, or that post-recovery on my plate. Phenol is definitely a medical procedure.

A quick note before we get to microneedling

I want to tell you about the Real Skin Pro Treatment Room Companion App. It's a web-based app that works as a resource right in the treatment room — especially good for newer estheticians, and even esthetics students, to have in the room during a consultation or a skin analysis.

When we can't quite figure out what we're looking at under the mag lamp — hyperpigmentation, certain acneic lesions, barrier disruption — this app tells you what you're looking at, what the best treatment approaches are, and what the best ingredients are. I updated it so you get instant access, and there are updates every single month.

Microneedling, and how I learned this the hard way

Keep in mind that I'm a California-based esthetician. Have I done microneedling before? I have — and that was before I knew it was not in my scope of practice. There were actually quite a few things I did before I knew they were not in my scope, and it was because we had reps coming in to where I worked saying, "Well, here's the loophole. You can't use this device — but you can use it, because it does this."

I remember reps coming in years ago, before lash lifts came into scope for us in California, saying, "Well, it's not a perm, it's a keratin treatment." And I didn't know the difference, because I don't really work with hair. I mean, I know what keratin is. So we said, okay, it's a keratin treatment, we can't say it's a lash perm. All they did was change what it was called. Not lash perming or lash lifting — keratin treatment for your lashes.

If I had done my due diligence, I would have discovered that we couldn't perform that either in California as estheticians. Cosmetologists, sure. But not estheticians.

The reps tend to get very tricky with the words, and to be honest, they don't care. They are representing a product or a device and they want to sell it to you. Once it's out of their hands and they've sold it to you, they'll support you — but it gets a little wild.

We've all done it. Most of us have done things that are out of scope because someone else told us we could — somebody we trusted, a big brand name we trusted, because of XYZ. These are hills I will die on. I'm not writing letters or turning anybody in about this. I just want to make sure you're all aware, and to give you some tips on how to identify whether something is in scope, what to do, and what questions to ask the reps who are talking to you about these things.

Why microneedling causes the most trouble

Microneedling generates more scope of practice trouble than any other treatment in our industry, and there's a clear explanation why.

It's inexpensive to add. It's heavily marketed — a certain celebrity made it very, very popular a little over a decade ago, showing up on social media with her face covered in blood. We all know who that is. I don't even want to say who it is. But that piqued everybody's interest, and everybody wanted to know more about it.

It's taught in weekend certification courses. The devices are frequently sold with reassuring, cosmetic-sounding labels. Everything about how it reaches you says this is an esthetics device. But past a shallow depth, it's unambiguously medicine in most states. And that gap — between how it's marketed and how it's regulated — is the whole problem.

I'm going to show you the actual range. And I want to be clear: these are illustrations of how differently states handle this, not legal advice for your practice. In fact, none of this is legal advice for your practice. Always do your own due diligence and research. Things change all the time, state by state, day by day.

Microneedling, state by state

California. Estheticians work on the surface of the skin — epidermis only. Microneedling is out of scope at any depth. I'll say it again for the people in the back: microneedling is out of scope at any depth. And this goes for whatever you want to call it — nano needling, nano channeling, there are so many different names.

To be safe in California, the service we can perform is nanoinfusion. Keep the word channeling out, because that insinuates you're creating a channel for something to go in. It's a very misleading term. And of course needling — we can't play with needles at all, at any depth in the skin. So stick with nanoinfusion if you're performing that with something like a Rezenerate pen. There are a lot of pens that have attachments now with just those little silicone tips. Stay in scope with that.

But microneedling — you cannot pierce the skin at any depth with a metal needle in this state. Doing it anyway is treated as the unlicensed practice of medicine, and that carries criminal exposure, not just a board letter. You do not want to be busted for practicing medicine.

Illinois. Likewise prohibited under the esthetician title, because it penetrates living tissue. And a detail I find genuinely fascinating: in Illinois, someone performing a delegated medical procedure may not hold themselves out as an esthetician while doing it. The title and the act are legally separate.

Texas. A physician can delegate microneedling to trained staff, including estheticians, under written protocols and supervision — so there is medical oversight. But this is the part people skip: the authority flows from the physician, not from your esthetics license. If the delegation is defective, you have no independent authority to fall back on.

Arizona. What we call the wild, wild west, because they're allowed to do most things. There is a hard number, though — around 0.5 millimeters. At or under is cosmetic. Deeper is medical.

Utah. Utah has master esthetician licenses, and a master esthetician can go up to 1.5 millimeters. Master is a substantially higher credential than a standard license — more hours, and they're typically trained to do this while they're in school.

North Carolina. The board removed dermaplaning from esthetician scope in 2020, then reversed course in 2022 and permitted both dermaplaning and microneedling up to 1.0 millimeter.

That shows you things change all the time, and that they vary by state. Somebody in North Carolina is not going to give good advice to a California esthetician, because it's completely different. Always contact your board.

Look at that range: zero millimeters in one state, 1.5 in another, and a state that changed its mind twice in two years. So anyone who tells you they know the rule for microneedling is telling you about their state at best — if they even know that.

I know estheticians who have been licensed for 20 years in California who still have no idea that dermaplaning was brought into scope, or that lash lifts and brow laminations were brought into scope. They don't know, because they don't follow it. That's your responsibility as a licensee.

The device labeling myth

In 2018, the FDA reclassified microneedling devices from Class III to Class II for aesthetic use involving mechanical skin injury. Powered devices that pierce skin are regulated medical devices. A simple roller making only cosmetic claims may not be.

That federal classification doesn't decide who is allowed to hold the device — that's still a state question. But it should permanently end the argument that it's "just a cosmetic tool."

RF microneedling

RF microneedling is dermal penetration plus thermal energy delivered below the surface, at treatment depths that can reach roughly two millimeters. In practical terms, this is medicine essentially everywhere.

If someone is offering you RF microneedling training on an esthetics license with no medical delegation structure, that is the clearest red flag in this entire episode. Most people cannot do RF microneedling.

The medical director myth

If you're thinking, okay, but I work for a med spa, I work for a doctor — there's a huge medical director myth, and I want to spend real time on this, because it's where good people with good intentions get caught.

You hear it all the time: there's a medical director, so I'm covered.

Delegation is real. It's a legitimate legal doctrine, and it's how most compliant med spas operate. But delegation has requirements, and in most states they include some version of: a good faith examination of the patient by a qualified provider, written protocols governing the procedure, and the specific supervision level that state requires — which might mean on site, might mean immediately available, and might mean something else entirely.

What delegation is not is a name on a piece of paper. A physician who has never met the patient, has no written protocol, and is reachable by text three states away is not supervision. That is a compliance costume.

There are many med spas I've worked for that have a doctor's name on the door. That doctor has nothing to do with esthetics. That doctor does not practice in that building. I have never even met the doctor, never even seen him — there's a pixelated picture of him on the wall somewhere that looks like it was pulled off his website. I think that man only showed up every once in a while when there was a problem, and there were problems at this med spa I worked at. Anything the nurses were doing in there was not approved by that alleged medical director.

So check that. Really, really check that. Is your medical director even part of this business?

Who is actually carrying the risk

And here's the uncomfortable structural point. In that arrangement, who is carrying the risk?

The spa owner has an asset to protect and probably a lawyer. The physician has malpractice coverage and their own board relationship. You have a license issued by a cosmetology board, and quite possibly a professional liability policy that excludes services outside your scope of practice.

So think about it. Something goes wrong with the microneedling you're not allowed to perform in your state. The business has itself covered. Your name is not on their insurance policy. You might have your own professional esthetics insurance, but you're not going to be covered, because you're not supposed to be doing it. And that doctor wasn't there, so they're not covering you either — and you're definitely not on their malpractice insurance.

Really think about these things before you perform them.

The part nobody explains at these certification courses is that your insurance likely only covers you for services inside your scope. And the people running certification courses for brands are not checking. It is very rare that I have seen a company check for a license before one of these certifications. I'm not saying none of them do, because many do. But a lot of them don't care. They're mostly national brand reps, so if they're coming to your state, they're not going to know every single scope of practice. Usually they have reps dedicated to that state — but if they want to sell you the device, they're going to tell you the loophole.

So if you're not sure either, contact your insurance company and ask what your policy covers. If it doesn't cover it, it's likely out of scope. Because performing something outside your scope leaves you personally uninsured and exposed for the outcome. It's not going to be the spa. It's going to be you.

We all know of a recent case out here in Beverly Hills, of a seasoned esthetician practicing medicine and getting into a lot of trouble over many decades. I don't even want to say that person's name, but I'm sure you know about it.

How to actually find the answer for your state

Go to the primary source. Your state cosmetology or esthetics board website — the statute and the administrative rules. Not a blog. Not a Facebook group. Not a device rep's PDF. If your state has a separate medical board with a position on esthetic procedures, read that too. Both can bind you. You have to do the research yourself; it's not going to pop up in front of you.

Get it in writing. There is routinely a gap between what's in the statute, what a board said in an advisory opinion, and what's actively enforced. So if you call your board and get a helpful answer on the phone, follow up by email and ask them to confirm it in writing. A verbal from an unnamed staffer protects nobody. You can't just say, "oh, I talked to so-and-so and they said this." Get it in writing. Get everything in writing. That way, if the state board comes in and inspects your space and you have a questionable device or modality or product, you can say: actually, here is what I heard from somebody at your board, and here it is in writing.

Ask the one question that cuts through everything. When a trainer or device rep tells you that you can perform a service, ask them: can you point me to the statute, rule, or board opinion in my state that authorizes this? And then watch what happens.

A legitimate educator will have the answer, or will tell you honestly that it varies and you need to verify it yourself. Someone who is selling you a device will change the subject. That single question will protect you more than any certificate you will ever earn.

I have asked, and sometimes I get a response back like "oh, that's not true." And I'll say, well, I saw the board said this. And they'll say, yeah, but this. I don't get argumentative — I kind of shut down. But I know my stuff. And if I ask, it's not because I'm challenging somebody, it's because I genuinely want to know their take on it. Am I not understanding this correctly? Am I not understanding the response the board gave me? Am I not understanding something I saw on the board's website? And if you're another professional and you can explain it to me, I would love that insight too. But I need to see things in writing. I'm not doing it to be challenging, and neither should you. Don't be afraid to ask questions.

Build yourself a scope matrix. Write down every service on your menu. Next to each one: what tissue depth does it reach? What does my state say? What documentation do I have? If you work somewhere with multiple credential levels, map each role.

This prevents the most common failure mode in our field — drifting one notch deeper, or onto a device your license doesn't cover, without ever consciously deciding to.

Why this is hard, and what I actually respect

I want to end by naming what makes this topic hard, because I don't think it's ignorance.

Most estheticians who work out of scope aren't reckless. They're ambitious. We all are — if we're in this industry, we have to be. They got into this because they love skin and they want to deliver real results, and the industry has spent a decade telling them that real results live in treatments their license may not cover.

Meanwhile, the training pipeline is largely funded by companies that profit when you buy the device. And there is no neutral party in that room whose job is to tell you no. Not at the spa shows. Not the reps who come into your business. Not the guest speakers who come into your school if you're an esthetics student. They are not a neutral party, and it is not their job to tell you no. They want to sell you the device.

So that job is going to fall on you. And it requires you to be the least fun person in the group chat about this. The one who asks for the statute. The one who wants it in writing. The one who doesn't buy the pen at the trade show on the weekend.

That's not being small. Working precisely within your scope, and being genuinely excellent inside it, is a whole career. The estheticians I respect most are not the ones with the longest service menus. They're the ones who can tell you exactly what every item on that menu is.

So verify your own state. Get it in writing. And if a certificate is the only thing standing between you and a procedure, that's not a green light. That is a receipt.

Before you go

This episode is general education, not legal advice. Scope rules vary by state and change regularly. Please do not take this as legal or medical advice — always verify with your state board directly.

Subscribe to the podcast, follow along on Instagram @real_skinpro, or email me at lisa@realskinpro.com.