How the treatments differ

Platelet-rich plasma (PRP) is prepared from your own blood, concentrating platelets that release growth factors. It has an established history in regenerative medicine, although preparation methods, platelet concentrations and treatment responses vary.

Exosomes are small extracellular vesicles carrying proteins, lipids and genetic material involved in communication between cells. Researchers are investigating how these signals influence follicle activity and the hair-growth cycle.

What comparative research shows

Two human studies published in 2026 reported greater improvements with the exosome preparations tested than with PRP.

A 30-patient study reported an average increase of approximately 61 hairs/cm² after two sessions of a bacterial-derived vesicle-and-peptide preparation, compared with 27 hairs/cm² after four PRP sessions.

A separate 40-patient study reported increases of 44.4 hairs/cm² with salmon-derived exosomes and 26.3 hairs/cm² with PRP, using four and five sessions respectively.

These are encouraging findings. They support further investigation, but do not establish that every exosome formulation works better, faster or more consistently than PRP.

Why product selection matters

“Exosomes” does not describe one interchangeable treatment. Source, manufacturing, purification, formulation and delivery method all matter. Findings from one product cannot automatically be applied to another.

This is why I invest substantial time in reviewing research, understanding formulations and following developments internationally. Our RegenScalp AFRP® programmes bring that knowledge together with scalp assessment, selected technologies and documented progress.

Start with your scalp

Choosing treatment begins with understanding why your hair is thinning. An assessment helps identify contributing concerns and determine which options suit your scalp, hair-loss pattern and goals.

Book “Scalp/Hairloss- Clinical Scalp/Hair Analysis” online.

Research references

Exosomes versus PRP: 30-patient comparative study

Salmon-derived exosomes versus PRP: 40-patient randomised study

Adipose stem cell-derived exosomes: ExoCoBio-associated research, 2024

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