Medically reviewed by Dr Sin Yong · Last reviewed · 13 min read · Doctor-performed, never delegated · Jump to questions
Related: the evidence on exosome treatment.
Dr Sin Yong · MBBS (NUS) · MRCS (Edin) · MSc Aesthetic Medicine with Distinction (Queen Mary, London) · MSc Practical Dermatology (Cardiff) · Global Key Opinion Leader
Exosomes are the most talked-about ingredient in regenerative aesthetics — and one of the least accurately described. In Singapore they are applied topically, most usefully in the window after laser or microneedling opens the skin. This page explains what they are, where the evidence stands, what HSA regulation means for how they can be used here, and when a different regenerative option serves you better.
Exosome treatment in Singapore is a topical step, not an injection. A preparation of extracellular vesicles, roughly 30 to 150 nanometres across, is applied to the skin or scalp straight after fractional laser or microneedling has opened microchannels. It is an adjunct for recovery and skin quality, the evidence is early, and Dr Sin Yong names the product he uses.
Also called: exosome therapy, exosomes treatment, exosome skin booster
Exosome treatment uses exosomes: nano-sized extracellular vesicles that cells release as messengers. They carry growth factors, lipids and nucleic acids that influence how nearby cells behave, such as dialling inflammation down and supporting fibroblast activity and repair. They are signalling cargo, not living cells, so they cannot divide or grow into tissue. Aesthetic products derive them from sources such as stem-cell culture or plant tissue, then purify and stabilise them.
Delivery is the crux. On intact skin the stratum corneum keeps large molecules on the surface, so an exosome serum used at home largely stays there. Applied straight after fractional laser or microneedling, while thousands of microchannels are open, a topical preparation can reach the epidermis and superficial dermis, where its signalling is relevant. That is why exosomes are paired with a procedure here and never booked on their own.
Small human studies and systematic reviews suggest that exosomes applied in the post-procedure window may support recovery and skin texture after energy-based procedures. The studies are small, the products differ in source, concentration and stability, and the effect of the adjunct cannot yet be separated reliably from the effect of the procedure. The exosome evidence guide sets out what the studies do and do not show.
In Singapore, exosome products are used topically. No injectable exosome product is approved by the Health Sciences Authority, and injecting exosomes falls into a different regulatory category that is not part of practice here. So the question at consultation is not whether to have an exosome jab, but which procedure, if any, a topical product should be paired with.
Anything sold as an exosome injection deserves scrutiny of exactly what is in the syringe and under what registration. Registered injectables, such as polynucleotide skin boosters, remain the injectable route for regenerative skin treatment and are compared on skin boosters in Singapore. Ask any clinic what the product is derived from, whether it is applied or injected, and what the published evidence for that product shows.
Exosome treatment suits skin that is already being treated with fractional laser or RF microneedling, where recovery and skin quality are part of the aim and the evidence is accepted as early. It does not suit someone expecting an injectable, a stand-alone effect or an answer to hair loss on its own.
| Group | What it looks like | What usually happens |
|---|---|---|
| Tends to suit | Skin already planned for fractional laser or RF microneedling; interest in an adjunct; willingness to have the product named and discussed | The adjunct is added to the procedure plan in writing |
| Should wait | Active infection, a cold sore or an open wound in the area; pregnancy or breastfeeding, where safety data are limited | Treatment is timed around these |
| Should not have it | A known allergy to a component of the product, or a contraindication to the paired procedure | The procedure alone, or another option, is discussed |
| Discussed first | A history of cancer or a significant immune condition, because the preparations carry growth factors | Suitability is decided with the doctor beforehand |
| Referred on | Hair loss that has not yet been diagnosed | Assessed within a proper hair protocol, or by a dermatologist |
Exosomes treatment means one thing at this practice: a topical application straight after a procedure has opened the skin. The procedure is the treatment, chosen for the concern; the exosomes are the adjunct. Dr Sin Yong uses them in three settings.
| Setting | What is done | Tends to suit | Not for |
|---|---|---|---|
| After fractional laser | Applied straight after fractional CO2 on the Tetra Pro or pico fractional resurfacing (T2 Frax Radiance), in the open-channel window | Skin already being resurfaced for acne scars or texture, as in the S3 Resurfacing Lift | Expecting the exosomes to do the resurfacing |
| After RF microneedling | Applied over the channels made by RF microneedling on the Secret DUO, which serve the same purpose at lower intensity | Texture and pore plans on skin treated with RF microneedling anyway | Active infection or uncontrolled inflammation, where the procedure itself waits |
| Scalp | Applied to the scalp alongside laser, such as the Luminescence Laser, and medical treatment, as one adjunct in a hair plan | Thinning that has been diagnosed and is already on a medical and laser plan; see hair regrowth | Hair loss treated with exosomes alone; follicles that are already gone |
All three are described as supporting repair, but they are different materials with different routes and evidence.
| Option | What it is | How it reaches the skin | Evidence status |
|---|---|---|---|
| Topical exosomes | Extracellular vesicles carrying signalling molecules | Applied straight after a procedure has opened channels; not injected here | Early, mostly small studies as an adjunct |
| PRP | Platelet-rich plasma prepared from your own blood | Injected, or applied after a procedure, depending on the protocol | Studied for some hair and skin uses, with mixed results |
| Polynucleotide skin booster | Purified DNA fragments in an HSA-registered injectable device | Injected into the dermis by a doctor | Clinical studies for skin quality, texture and post-acne skin |
| Exosome serum at home | A cosmetic product | Applied to intact skin, where large vesicles largely stay on the surface | Limited |
A polynucleotide booster is a treatment in its own right; the polynucleotide skin booster guide explains how PN and PDRN differ. Where a better-evidenced option fits the concern, Dr Sin Yong says so first.
Exosomes support a procedure; they do not replace one. On their own they do not lift sagging skin, replace volume, resurface a scar or treat active skin disease.
| Expectation | Why exosomes are not the answer | What is assessed instead |
|---|---|---|
| An exosome injection | Not part of practice in Singapore; no injectable exosome product is HSA-approved | Registered injectables: skin boosters or polynucleotides |
| Lifting sagging skin or replacing volume | A signalling adjunct, not a lifting or volumising treatment | Sagging face treatment or volume restoration |
| Treating acne scars | The scar result comes from the resurfacing and subcision plan | Acne scar treatment chosen by scar type |
| Regrowing hair on its own | The evidence supports adjunct use only, and is early | A diagnosed hair loss plan |
| A home serum instead of a procedure | On intact skin, large vesicles largely stay on the surface | The procedure alone, if no adjunct is wanted |
“Exosomes are messengers, not miracles. On intact skin they sit on the surface; the procedure opens the door, the exosomes walk through it.”
Dr Sin YongOn what topical exosomes can do
Redness, warmth and mild irritation follow the paired procedure itself, and the exosome product goes into the same open channels. Less commonly, a contact or allergic reaction, a flare of an existing skin condition or an infection can occur. Products vary widely in source, concentration and stability, so the meaningful safety questions are product quality and honest use. That is why the product is named openly, and why the adjunct can be dropped if it is not earning its place.
What to do if something feels wrong after any treatment is on complication care.
Procedure checklists are on CO2 laser aftercare and RF microneedling aftercare.
Fees are not published on this site. Because the exosomes are an adjunct, the quote covers the procedure and the product together. It depends on the delivery procedure (fractional laser, pico or RF microneedling), the area treated, the exosome product used, and whether it is part of a scalp plan. A written quote is given after assessment, with the product named. The consultation also decides whether an adjunct is advised at all, or whether the procedure alone is more sensible. How quotes work is on how we quote.
Dr Sin Yong treats exosomes as an adjunct that has to earn its place. The skin or scalp concern is assessed first and the delivery procedure is chosen for it; the topical application follows in the same visit, with the aftercare of that procedure. He performs the procedures himself, including fractional CO2 on the Tetra Pro and RF microneedling on the Secret DUO.
“Exosome describes a particle, not what is in a particular vial; the source and preparation are what matter.”
Dr Sin YongOn exosome products
Which product, if any, goes on your skin is a medical decision made openly, and it is named in the written plan. Where a better-evidenced option fits the concern, such as a registered injectable or the procedure alone, he says so first. At review, the adjunct is dropped if it is not adding anything.
Every treatment is performed by Dr Sin Yong personally. Singapore Medical Council registered · invited to share his clinical expertise internationally as a Key Opinion Leader for CLASSYS, DEKA, HIRONIC, FOTONA, ALMA, LUTRONIC and ILOODA · HSA-registered devices · ultrasound-guided correction
Dr Sin Yong's aesthetic clinic in Singapore is on Orchard Road, a short walk from Orchard MRT. More about the aesthetic doctor in Singapore who performs every treatment.
WhatsApp Dr Sin Yong →or use the enquiry formIt is the topical application of a preparation of extracellular vesicles, the signalling particles cells release, to the skin or scalp straight after a procedure such as fractional laser, RF microneedling or a laser hair protocol has opened microchannels. In Singapore it is used topically; injecting exosomes is a different regulatory category and is not part of practice here.
No. Here, exosomes treatment is a topical adjunct applied in the open-channel window after laser or microneedling. No injectable exosome product is approved by the Health Sciences Authority, so anything sold as an exosome jab deserves scrutiny of exactly what is in the syringe. Registered injectables, such as polynucleotide skin boosters, remain the injectable route.
The phrase usually means a topical exosome application layered over microneedling or laser, using the procedure's microchannels for delivery. It is different from injectable skin boosters, which are registered injectables placed into the dermis. Both are discussed for skin quality, but one does not replace the other; see skin boosters compared.
Recovery support after fractional resurfacing is their clearest use: applied while the channels are open, small studies suggest they may support recovery. The scar result itself still comes from the resurfacing and subcision plan chosen for the scar type, not from the exosomes.
They are used on the scalp as one adjunct within a diagnosed hair plan, alongside laser and medical treatment. The evidence is early and comes from small studies with different products, so they are not a stand-alone answer to androgenetic hair loss, and they cannot revive follicles that are already gone.
Over-the-counter exosome cosmetics exist, but on intact skin large vesicles largely stay on the surface, because the skin barrier works. The clinical use depends on procedure-paired delivery, which a home serum cannot replicate. A serum can be part of a routine, with modest expectations.
Fees are not published on this site. The fee depends on the delivery procedure, such as fractional laser, pico or RF microneedling, the area treated and the exosome product, because the adjunct is applied with a procedure. A written quote is given after assessment, with the product named, and the consultation also decides whether an adjunct is advised at all.
It may be worth considering if you are already having fractional laser or microneedling and accept that the evidence is early, with small studies and varied products. It is the wrong tool if you expect an injectable, a stand-alone treatment or an answer to hair loss on its own. The procedure remains the main driver; the evidence guide sets out what the studies show.
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Medically reviewed by Dr Sin Yong, MBBS (NUS), MRCS (Edinburgh) · Last updated 25 October 2026 · Editorial policy
Start with a message, not an appointment. Describe your skin concern on WhatsApp and you will get a straightforward reply about whether exosome pairing — or a better-evidenced alternative — makes sense for you.
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WhatsApp +65 8023 7170This page is general information, not a diagnosis. Suitability for any treatment is decided at an in-person medical assessment.
1. Flores Rodríguez JC, Toledo Avelar LE, Yi K, et al. Efficacy of Exosome-Based Therapies for Skin Rejuvenation: A Systematic Review of Human Studies. Cureus 2026;18(2):e104182. PubMed
2. Knauer et al. Clinical Evidence and Commercial Landscape of Topical Exosomes for Skin Rejuvenation: A Scoping Review. Aesthetic Surgery Journal, 2026. PubMed
3. Contreras, Ariza-Donado. Extracellular Vesicles in Regenerative and Cosmetic Medicine: Safety, Clinical Effectiveness and Translation. International Journal of Molecular Sciences, 2026. PMC
What the studies on topical exosomes do and do not show.
The delivery-channel procedure exosomes pair with.
Fractional CO2 resurfacing, the other pairing.
The registered injectable regenerative route.
Injectable skin boosters side by side.
Where scalp exosomes fit in a diagnosed hair plan.