Regenerative & pain · Exosomes
What are exosomes, and are they FDA-approved? What patients should know
Exosomes are marketed for knees, backs, hair, skin and “whole-body” wellness. Here is what they actually are, what the FDA has said, what the evidence shows, and how to evaluate an exosome offer — including one from us.
Short answer
No. There are no FDA-approved exosome products for any use — not for joints, pain, hair loss, skin or wellness. The FDA regulates exosome products as drugs and biologics that require approval, and it has issued public warnings after serious adverse events linked to unapproved exosome products.1,2
What exosomes are
Exosomes are extracellular vesicles: microscopic packets released by cells that carry proteins, lipids and genetic material between cells. Researchers are interested in them because they appear to be one way cells signal to one another, including the signals thought to underlie some effects of mesenchymal stromal cells.
Commercial exosome products are typically isolated from cell cultures — often from umbilical-cord or other stromal cells grown in a laboratory. They contain no living cells. Product content, concentration and purity vary widely, and labels often cannot be independently verified.
What the FDA has said
- There are currently no FDA-approved exosome products.1
- Exosome products intended to treat diseases or conditions are regulated as drugs and biological products and require FDA approval before marketing.1
- In its December 2019 Public Safety Notification on Exosome Products, the FDA reported multiple serious adverse events in patients in Nebraska treated with unapproved products marketed as containing exosomes, and it has since warned consumers about clinics marketing them.1,2
“FDA-registered lab” or “FDA-compliant facility” on a product brochure does not mean the product is approved. How FDA regulation of regenerative products works.
Exosomes and Florida’s stem cell law
Florida’s 2025 law allows physicians to use certain non-FDA-approved stem cell therapies for orthopedic, wound-care and pain uses under specific conditions. Exosomes are cell-free products, and whether a given exosome product falls within that law is a legal question specific to the product. Either way, the law does not make any product FDA-approved or change its federal status.3
What the evidence shows
Joints and pain. Human evidence is early. A 2026 scoping review of orthobiologics concluded that exosome strategies remain experimental, noting that the one rigorous triple-blind randomized trial of exosomes in knee osteoarthritis did not show superiority over placebo.4
Skin and hair. Exosome serums are widely marketed for use after microneedling. Studies are mostly small and short, often industry-funded, and the products are not FDA-approved for these uses either. Applying any biologic to skin opened by microneedling carries infection and reaction risks. See regenerative aesthetics terminology.
Does PrimeCell offer exosomes?
Yes. PrimeCell offers exosome (extracellular-vesicle) products in selected cases, after a physician evaluation with Dr. Kenny Chantasi and written informed consent. No exosome product is FDA-approved for any medical or cosmetic use, the FDA has warned the public about unapproved exosome products, and exosome therapy is investigational, with early evidence in people.1
Before any decision you receive, in writing, the product category and its source, its regulatory status, what the evidence shows for your condition, the risks, the alternatives and a written estimate. For most people with joint or tendon pain, better-studied options such as rehabilitation, a conventional injection or PRP come first. PrimeCell also uses exosome products for some aesthetic, hair-loss and sexual-health concerns; those uses are investigational as well. Everything PrimeCell offers for pain, with FDA status.
Questions to ask before considering exosomes anywhere
- Who manufactures this product, from what cells, and how is its content verified?
- Will you state in writing that it is not FDA-approved?
- What randomized evidence exists for my condition?
- How will it be given (injection, infusion, topical), and what are the risks of that route?
- What is the total cost, and am I being asked to prepay for a series?
Frequently asked questions
Does PrimeCell offer exosome therapy?
Yes, in selected cases, after a physician evaluation and written informed consent. Exosome therapy at PrimeCell is investigational and not FDA-approved, and the product, its source and its status are disclosed to you in writing first.
Are exosomes the same as stem cells?
No. Exosomes are cell-free vesicles released by cells; they contain no living cells. They are sometimes marketed as “stem cell exosomes” because they are derived from stem-cell cultures.
Is exosome therapy FDA-approved for hair loss or skin?
No. No exosome product is FDA-approved for any use, including hair and skin.
How long does exosome therapy take to work?
There is not enough reliable evidence to say it works for pain, so there is no evidence-based timeline. Be cautious of any clinic that promises one.
How much does exosome therapy cost?
It is self-pay and depends on the product, the amount, the area and the number of sessions. PrimeCell does not publish prices; you receive a written estimate after an evaluation. How regenerative care is priced.
Who should avoid exosome products?
Anyone with an active infection, active cancer or recent cancer treatment, pregnancy, or an immune condition should be especially cautious; and anyone should avoid products whose source and FDA status cannot be clearly stated.
References
- U.S. Food and Drug Administration, Center for Biologics Evaluation and Research. Public safety notification on exosome products (December 6, 2019). fda.gov
- U.S. Food and Drug Administration. Consumer alert on regenerative medicine products including stem cells and exosomes. fda.gov
- Florida Statutes §458.3245 and §459.0127, Stem cell therapy (2025). flsenate.gov
- Di Lorenzo L, Forte AM, De Meo B, et al. Orthobiologics are not all the same: a mechanism-based scoping review of PRP, cytokine-rich serum, and extracellular vesicle–based strategies in musculoskeletal conditions. Front Pain Res. 2026;7:1772644. doi:10.3389/fpain.2026.1772644
General education, not medical advice. No exosome product is FDA-approved. Candidacy for any treatment is determined at an individual evaluation; results vary and are not guaranteed.