Are exosomes legal? A physician adding cells or tissue asks me the legal question first, and it’s really three: is the product approved, may a physician use it, and may anyone market it. No exosome product is FDA approved, and the FDA says exosomes used to treat disease are regulated as drugs and biological products. Here is how I walk a clinic owner through each one.
TLDR: The FDA says there are currently no FDA-approved exosome products. It also says exosomes used to treat diseases are regulated as drugs and biological products. So when a clinic owner asks me are exosomes legal, I split it into three questions: the product, the practice, and the marketing. What’s left for a clinic to say is education. Keep reading to see how to check a product yourself.
Important Note
This article is for educational purposes only and does not constitute legal, medical, or regulatory advice. Marketing strategies discussed should be reviewed by qualified legal counsel before implementation, particularly regarding FDA, FTC, and state-specific advertising regulations. Regen Portal is a marketing and consulting company, not a law firm. Nothing here implies FDA approval of any product or any use. Most cell, tissue and exosome products marketed to patients are not FDA approved, and the few cell-based products the FDA has approved are approved only for specific labeled indications. Nothing here promises a marketing or business outcome. Regulations change and enforcement varies by state. Confirm current requirements with qualified legal and compliance counsel before you act on anything you read here.
When a physician calls me about adding cells or tissue to the practice, the questions come in the same order every time. Is it legal in my state? Then, where can I get it? Then, how much can I charge?
Always that order. Legal first. Okay, fair enough. That’s the right place to start.
So let’s point that first question at exosomes. Are exosomes legal? I’m going to show you what the FDA has put in writing and what that leaves open. The rest goes to your counsel.
Are Exosomes Legal? The Short Answer
The short answer is: it depends on which question you’re asking. No exosome product is FDA approved. And the FDA says exosomes used to treat diseases and conditions are regulated as drugs and biological products, which need premarket review and approval.
So I won’t tell you exosomes are legal. I won’t tell you they’re illegal either. People say both with a lot of confidence, and both skip the details.
Most people want a yes or a no. I think it depends on which question you mean: the product, the practice or the marketing. So we define the terms first. Then we go question by question.
Three Questions Hiding Inside “Are Exosomes Legal”
That one question is really three. Is the product approved, may a physician use it, and may anyone market it? Each one gets answered in a different place.
Here’s how the three line up.
| The Question | What the FDA Has Said | Who Answers the Rest |
|---|---|---|
| Is the product approved? | There are no FDA-approved exosome products | The FDA’s public list |
| May a physician use it? | Exosomes used to treat disease are regulated as drugs and biological products | Your legal counsel |
| May anyone market it? | Certain clinics “deceive patients with unsubstantiated claims” | Counsel, before anything goes live |
What this means for your practice: A yes on one question is not a yes on the other two.
The middle one is where owners want me to just say yes or no. I can’t, and nobody on a sales call can either. The FDA’s sentence is about how the product is regulated. What it means for your license, in your state, is a question for your counsel. Counsel decides.
What Has the FDA Actually Said About Exosomes?
The FDA has said the same two things in writing since 2019. There are no FDA-approved exosome products. And exosomes used to treat diseases and conditions in humans are regulated as drugs and biological products.
I went and read the documents myself. Two of them matter here.
The first one is the FDA’s public safety notification on exosome products, dated December 6, 2019. It says exosomes used to treat diseases and conditions in humans are “subject to premarket review and approval requirements” as drugs and biological products. It also says some clinics claim these products fall outside those rules. The FDA’s words for that claim: “that is simply untrue.”
Then came the FDA’s consumer alert on regenerative medicine products, first published July 22, 2020. The page is current as of April 9, 2024. It says what the 2019 notice says, in the same words: “There are currently no FDA-approved exosome products.”
Translation: this is not a new position. And people act on it. A lot of the practices and companies we work with have changed a page, a deck, or an ad because of a recent FDA or FTC action.
I believe in this field. But approved is a specific word, and no exosome product has it.
Why “It’s a 361 Product” Does Not Settle It
It doesn’t settle it because 361 is a test with four parts, and a product has to meet all four. One of the four names advertising.
Reps use 361 as shorthand. It means a human cell or tissue product, called an HCT/P, that is regulated solely under section 361. The test is in 21 CFR 1271.10(a), and an HCT/P has to meet all of these:
- It is minimally manipulated.
- It is “intended for homologous use only, as reflected by the labeling, advertising, or other indications of the manufacturer’s objective intent.”
- It is not combined with another article, with narrow exceptions.
- It has no systemic effect and does not depend on the metabolic activity of living cells for its primary function. Or it does, and it is for a listed use such as autologous use (the patient’s own).
All four. A product that fails any one is regulated as a drug or biological product and needs premarket approval.
Now read number two again. Advertising. What a company says in its marketing is part of how the product is classified. I read FDA warning letters, and the company’s own marketing is part of the evidence in most of them.
Here’s the problem. A 361 line doesn’t stay in the sales pitch. Once it moves from a rep’s handout onto your website, it’s your advertising. And now it’s your claim. The same goes for minimally manipulated as a marketing line.
So I’d ask where every line on the page came from before it goes live. And it’s why the compliance rules for reps cover registered versus approved.
One more reason the 361 label doesn’t fit an exosome product. The definitions in 21 CFR 1271.3 list secreted or extracted human products among the things that are not HCT/Ps. Counsel confirms how all of this applies to your product.
How to Check an Exosome Product Yourself
Start with the FDA’s own list, then ask the supplier for the paperwork. The FDA keeps a public list of approved cellular and gene therapy products. If a product is not on it, it is not approved.
Check the list on the day you read this. No exosome product is on it.
Then the supplier. Let’s say they tell you the product is cleared. Or registered. Or exempt. According to who? Ask for the document that says so.
Take registered. The FDA’s tissue registration page says that accepting a registration and a listing is not a finding that the product is licensed or approved. Registered is not approved. Cleared is not approved.
Here’s what I’d ask a supplier for, in writing:
- The certificate of analysis, or COA
- The establishment registration
- The product listing
- The chain of custody
Why those four? Clinics bring us their supplier paperwork, and the first two are often not in it. The last two are missing sometimes.
What if a vendor won’t hand over the COA, or doesn’t have one? Then you have your answer. Run away.
None of that paperwork makes a product approved, and none of it tells you whether a physician may use it. That one still goes to counsel. I use the same habit with software and lead source vendors: check before you sign, and know when to walk away.
What a Clinic Can Still Say About Exosomes
Education. That’s what is left. A clinic can explain what exosomes are and state that no FDA-approved exosome product exists, and that’s where it stops.
Exosomes are extracellular vesicles, which are tiny particles that cells release. They are not cells. That’s the biology.
And the rest? What it’s used for, what a patient said afterward? That’s where the trouble starts. The FDA’s 2019 notice says certain clinics “deceive patients with unsubstantiated claims” about what these products can do.
And so for every sentence, I ask one thing. What’s the evidence? When we ask a practice or a vendor that question, what comes back is usually vendor materials. Sometimes a COA or a public clinical trial. And often not much at all.
Softer words don’t fix it. The FTC’s health products guidance says vague words like may or helps are not enough. And I’d read the subheadings as closely as the body copy.
Here are three lines I’d pull, and what’s left after.
| Do Not Use | The Problem | What Is Left |
|---|---|---|
| “FDA-approved exosomes” | No FDA-approved exosome product exists | The status, as the FDA states it |
| “Exosomes help with [a condition]” | A disease claim, and a softer word doesn’t change that | What exosomes are |
| “It’s a 361 product, so it’s exempt” | Four criteria, and advertising counts | A question for counsel |
The bottom line: Biology and status. If a sentence does a third job, I’d cut it.
And once a page turns into an offer, it has stopped being education. I use the same line-by-line test for stem cell ad wording. And I went through hair loss page wording the same way, with what a clinic page can and cannot say.
Do State Stem Cell Laws Change the Answer?
No. A state law never overrides federal law. Some states now require a specific notice in stem cell ads, and the wording differs by state, but none of that changes a product’s federal status.
So are exosomes legal in one state and not in the next? The federal status is the same everywhere. A state can add its own rules on top.
Florida is a good one to read. Its stem cell statute requires a notice in advertisements. And the notice says the physician performs stem cell therapies “that have not yet been approved by the United States Food and Drug Administration.”
Read that again. The state’s own notice says not approved. I covered the same question for stem cells in its own post.
Does your state’s law even reach exosomes? Every one of these laws has its own wording, and counsel confirms which apply to you.
Picture a Practice That Just Heard the Exosome Pitch
Picture a practice with two providers and a busy front desk. The office manager also writes the website copy, and the practice has offered PRP for about three years. A rep stops by with an exosome product and a one-page handout. This scenario is illustrative and does not describe any Regen Portal client.
The Challenge: The rep says the product is registered, and that it’s a 361 product. The owner asks the usual first question: are exosomes legal? The office manager has already drafted a web page from the handout.
The Approach: The owner splits the question in three. The product comes first, and it isn’t on the FDA’s approved list. Then the paperwork: the COA and the document behind the word exempt. The question about use goes to the practice’s attorney, in writing.
The Compliance Check: The drafted page gets read line by line. The sentences about conditions came straight from the handout, and so they come out. What stays is education. The page makes no offer, and the owner keeps a written record of what was decided and why.
What Changed: The owner stopped asking one question and started asking three. The team knew what to say when someone asked, and where to stop. And the decision about the product sat with counsel and the physician.
Frequently Asked Questions
Are Exosomes FDA Approved?
No. The FDA’s consumer alert, current as of April 2024, says there are no FDA-approved exosome products. And none is on the FDA’s public list of approved products.
Are Exosomes Legal in My State?
No state law changes the federal status of an exosome product. Some states have their own stem cell advertising laws, and the wording differs by state. Whether one applies to you is a question for your counsel.
Can a Clinic Advertise Exosomes?
I wouldn’t, not as a service and not as a treatment for anything. An ad is built to sell, and the FDA says no exosome product is approved. What’s left for a clinic is education, and I’d cut anything past the biology and the status.
Are Topical Exosome Products Treated Differently?
Calling a product topical doesn’t settle how it’s regulated. The question is what the product is meant to do, and the FDA’s 2019 sentence is about exosomes used to treat diseases and conditions. So a topical label is not a loophole. Counsel decides.
What Can My Website Say About Exosomes?
Biology and status. Your site can explain what exosomes are and say that no FDA-approved exosome product exists. I’d keep conditions and patient stories away from it, and I’d send the final wording to counsel.
Key Takeaways
- “Are exosomes legal” is really three questions, and each one has its own answer.
- No exosome product is FDA approved.
- The FDA says exosomes used to treat disease are regulated as drugs and biological products.
- A 361 claim has to meet four criteria, and one names advertising.
- Registered is not approved, and cleared is not approved.
- What’s left for a clinic to say is biology and status.
- State law doesn’t change federal status, and counsel decides the rest.
Your Next Step
So it all goes back to which question you’re asking. When you say are exosomes legal, do you mean the product? The practice? The marketing? Once you split them, you know who has to answer each one.
Not sure which of the three you’re stuck on? Email me the one sentence that worries you most, and I’ll tell you what I’d ask about it. Claims are the first thing we go through in a marketing compliance review, and the legal call stays with your counsel.
PS: Did a supplier hand you a one-pager, or did your team already write copy from it? Send it to me and I’ll take a look.
Email: hello@regenportal.com
YouTube: Subscribe to the channel
About Regen Portal
Regen Portal is a marketing and consulting company built for the regenerative medicine industry. We handle practice consulting, marketing compliance, search engine optimization, content creation, social media management, paid advertising, website development, branding, and AI and ops consulting for clinics, manufacturers, distributors, and independent providers. For more on me and how we work, visit Regen Portal and contact us.
About the Author
Oscar Tellez is the founder of Regen Portal, a marketing and consulting company built for the regenerative medicine industry. He has been in this industry since 2015. He started in medical sales and has worked with PRP since 2016. He has reached hundreds of practices and over 200 doctors through sales, teaching and marketing. He holds a B.S. in Exercise Science and Health Promotion from Florida Atlantic University.
