Exosomes and Wound Healing: What Dog and Cat Owners Should Know

Exosomes and Wound Healing: What Dog and Cat Owners Should Know

TPC Learn / Ingredients & Science

By Treat Protocol Co. · Updated September 2026 · 5-minute read

Quick answer

Exosome research offers a promising explanation for how signals released by cells may influence skin repair. Studies have reported changes in repair-cell activity, collagen formation, blood-vessel development and inflammation. But a laboratory result, an injected preparation and a finished care gel are not interchangeable. The studies discussed here do not establish a wound-healing outcome for EXOCARE.

This guide explains what researchers have observed, why it matters and how to read those findings alongside an everyday care product.

What are exosomes?

Exosomes are a type of extracellular vesicle: membrane-enclosed particles released by cells. They are not live stem cells. Their biological contents and effects depend on their source and preparation. The MISEV2023 research guidance emphasises careful characterisation; calling every small particle an exosome is not sufficient.

Conditioned medium is the liquid collected after cells have released substances into it. It can contain vesicles and other released materials. It is not automatically equivalent to an isolated exosome preparation. For EXOCARE’s canine UC-MSC conditioned medium and full ingredient list, read Inside EXOCARE: Cell-Free Conditioned Medium and What It Means for Dogs and Cats.

How might exosomes support repair?

Researchers are interested in communication between cells: can released particles influence the cells involved in repair without transplanting living stem cells? The following studies explore different parts of that question. They should be read as separate experiments, not combined into a list of guaranteed benefits from one product.

Repair-cell activity: canine-source laboratory research

In 2025, Pamulang and colleagues studied vesicles isolated from canine adipose-derived mesenchymal stem cells. In laboratory fibroblast cultures, the preparations increased cell movement, proliferation and expression of genes associated with wound repair. Fibroblasts are cells involved in building and maintaining connective tissue. These findings support further investigation of canine-source vesicles, but the work tested cells in culture—not wounds in pet dogs. It also used an adipose-cell source, not EXOCARE’s umbilical-cord conditioned medium. Read the Scientific Reports study.

Collagen and blood vessels: an animal wound model

Zhang and colleagues’ 2015 study used exosomes from human induced-pluripotent-stem-cell-derived MSCs in a rat skin-wound model. They reported improved wound closure, collagen maturation and blood-vessel formation compared with controls. Related cell experiments explored fibroblast and blood-vessel-cell responses. Treatment included injections around the wounds as well as application to the wound bed. This is evidence for that experimental preparation and delivery method, not proof that a topical pet gel produces the same effects. Read the Journal of Translational Medicine study.

Inflammatory signalling: a burn model

Li and colleagues’ 2016 work examined human umbilical-cord MSC exosomes in burned rats and stimulated immune cells. The researchers linked reduced inflammatory signalling to the vesicles’ miR-181c content and the TLR4 pathway. In plain language, a particular molecular signal influenced part of the inflammatory response in those models. This does not establish that all exosome-containing preparations are anti-inflammatory treatments, or that they kill microorganisms. Read the EBioMedicine study.

What about actual wounds in dogs?

A July 2026 report by Guidi and colleagues described four dogs with chronic wounds treated with plant-derived exosome-like nanovesicles delivered through ice-needling. Healing was reported in all four cases. However, this was a small, uncontrolled case series using a different vesicle source and a device-assisted treatment. It cannot separate treatment effects from other influences or establish typical outcomes. The authors disclosed commercial relationships and called for controlled studies. It was not an EXOCARE trial. Read the veterinary case series.

What does this mean for cats?

The studies above do not establish a feline wound-care benefit from EXOCARE. A canine cell source is not a clinical trial in dogs, and clinical observations in dogs cannot simply be transferred to cats. Differences in species, disease, preparation and delivery all matter.

Cats are included in EXOCARE's intended companion-animal use, but that product suitability is separate from proof of treating a particular condition. For cat mouth ulcers, read veterinary care and EXOCARE's possible supportive oral-care role. Do not substitute skin-repair research for evidence of oral-ulcer treatment.

Four questions to ask of a healing claim

  • What was tested? The finished product, isolated vesicles, conditioned medium or live cells?
  • How was it used? On the surface, by injection or with a delivery device?
  • In whom? Cultured cells, laboratory animals or clinical patients of the relevant species?
  • Compared with what? A control group, usual care or only a before-and-after observation?

For a claim about EXOCARE’s healing performance, the most directly relevant evidence would test the finished gel, its intended application and the relevant animal population. The studies above explain scientific interest; they do not provide that product-specific comparison.

Where EXOCARE fits—and why cleaning still comes first

EXOCARE is an All-in-One Oral & Skin Care Gel containing cell-free canine UC-MSC conditioned medium. It contains no live stem cells and supports the skin’s natural recovery process. The manufacturer confirms that it is sterile and suitable for most animals. Suitability for most animals is not a guarantee for every species or medical condition.

EXOCARE has no antimicrobial properties. Clean the surface before applying it. A sterile product does not disinfect the area beneath it. Its skin adhesion is separate from antimicrobial action, and sterility should not be assumed after opening or contamination.

For a wound, follow veterinary advice on cleaning, infection control and any dressing or additional care product. Do not cover a deep wound, bite or painful, discharging area with gel and postpone assessment. Our Clean First: Where EXOCARE, HX-01 and HX-03 Fit in Dog and Cat Skin Care explains the different roles of EXOCARE, HX-01 and HX-03 without assuming an untested mixing or layering protocol.

To connect these findings with practical wound preparation, read The Science of Wound Care for Dogs and Cats: Cleaning, Skin Repair and EXOCARE. Its simple diagrams explain cleaning, the stages of skin repair and why exosome research is not proof that EXOCARE speeds wound closure.

The useful takeaway

Exosome science is worth understanding because it investigates repair-related cell communication. Good product decisions still require the full formula, appropriate use and evidence relevant to the finished product. Scientific promise and careful everyday care can sit together without turning one into a guarantee of the other.

Continue reading

Sources are linked beside the findings they support. This is an educational overview of selected research, not a systematic review or veterinary treatment protocol. Treat Protocol Co. imports and distributes EXOCARE in Singapore. The cited researchers have not endorsed EXOCARE or TPC. Product information is separate from the research findings.

Back to blog