What it is
Exosomes are extracellular vesicles, much smaller than cells themselves, that carry signalling molecules from one cell to another. In aesthetic medicine they are most commonly applied topically after a microneedling or laser session, where the disrupted skin allows them to reach the dermis and influence skin behaviour during the recovery window.
What it does well
Recovery quality after energy-based treatments, and as a regenerative adjunct to a wider treatment plan. There is also growing interest in their use for hair loss, where the signalling effect may support follicle activity, although that part of the field is still developing.
What it does not do
Exosomes do not act on their own as a primary treatment for lines, laxity, pigment or volume. They are an adjunct. The marketing around them sometimes suggests otherwise. The honest picture is more measured.
Our view
Exosome treatments are useful as a layered adjunct, particularly after microneedling or laser, where they can support recovery and the quality of the result. As a stand-alone exosome facial, the evidence is thinner. Dr Ong recommends them where the science supports the use, and is straightforward when it does not.
Practical notes
Treatment depends on what they are being combined with. Recovery is no longer than the underlying treatment they are paired with.

