What it is
Exosomes are extracellular vesicles, packets far smaller than a cell, that carry signalling molecules from one cell to another. In the body they are part of how cells coordinate repair and communication. In aesthetic medicine, the exosome preparations used are most often applied to the skin immediately after a procedure that has opened it, usually microneedling or a laser session. The disruption gives the particles a route into the dermis, where they can influence how the skin behaves during the recovery window.
That timing is the point. Applied to intact skin, most of a large molecule stays on the surface. Applied in the short window after controlled injury, when the barrier is briefly open and the skin is already in repair mode, the same preparation reaches the layer where the signalling can matter. This is why exosomes are almost always discussed as a partner to another treatment rather than a treatment on their own.
It is worth being honest about what an exosome product is, because the term covers a wide range. Source, processing and concentration vary between preparations, and the category is young enough that standards are still settling. That variability is a large part of why the category is hard to judge from the outside, and a large part of why Dr Ong has not moved on it.
What the evidence supports, and what it does not
The strongest case in the literature is as an adjunct after energy-based work. After microneedling or a laser session the skin is repairing, and the interest is in whether the signalling supports that process so the result settles well. Used that way, inside a plan rather than as the main event, there is a reasonable rationale and a growing, if still early, body of interest behind it.
There is also developing attention on use in hair loss, where the signalling effect may support follicle activity. That part of the field is younger still, and the honest framing is interest rather than proof. Hair loss is diagnosed first in any case, because thinning has several different causes and they are treated differently.
What exosomes do not do is work as a primary treatment for lines, laxity, pigment or volume. They will not lift a jawline, fill a cheek, soften an established wrinkle or clear a sun spot on their own. The marketing around a stand-alone exosome facial sometimes implies otherwise, and the measured picture is that the evidence for exosomes used alone is thinner than the evidence for the base treatments they are paired with.
One practical consequence is worth knowing before you look at anyone's results. Because the preparation is almost always applied straight after a treatment that has opened the skin, a result shown from an exosome session came from two treatments at once. That is not a criticism of anybody. It is simply what the photograph is a photograph of.
Why we do not offer them
Exosomes are a genuine area of interest, and they are also a category where enthusiasm has run ahead of the data. Both things are true at once. Dr Ong's position is that the evidence has not finished grading this category, and that he is not willing to charge a patient for that gap. So it is not on the list here.
That is a decision about this clinic and not a judgement on any other. Reasonable doctors read a developing evidence base differently, and plenty of careful ones use exosomes thoughtfully as an adjunct. The difference is where each of us has set the bar for charging, and ours is set where it is deliberately.
The clinic's habit is to treat the diagnosis first and the trend never. New is not the same as better, and it is not the same as ready. We would rather under-claim and be right than sell a young category and be caught out by it later.
This is a position, not a permanent one. It will move as the evidence does, and if it moves, this page will say so plainly.
If you are considering exosomes elsewhere
Three questions travel well, and they work on any treatment, not only this one. First, ask what happens to the plan if this part is removed. If the plan collapses without it, the plan was built on the wrong thing. If the plan survives, you have just found out what you are actually paying for.
Second, ask what the base treatment is and what the result would be without the exosome layer. Because the two are delivered in one visit, that question separates them in a way a before-and-after photograph cannot.
Third, ask what is in the preparation and what the evidence says for your particular concern, not for the category in general. Source, processing and concentration vary, and a doctor who is using them thoughtfully will have an answer ready.
If your concern is structural, laxity or volume or an established line, the honest first move is a structural tool and a diagnosis, whoever you see. That part does not change with the category.

