Juvelook and Re2O — stimulating versus supplying
Juvelook and Re2O are the same injection doing opposite jobs. Juvelook (PDLLA) sends the skin a signal to make collagen; Re2O (hADM) sends no signal — it supplies the dermis’s own building material. So what to settle first is whether you want to stimulate, or to supply.
The short answer
Same injection, opposite job. Juvelook (PDLLA) is a class that sends the skin a signal to make collagen; Re2O (hADM) sends no signal — it leaves the dermis’s own building material in that layer. So the question is not which is better but do you want to stimulate, or to supply.
Side by side
| Item | Juvelook (PDLLA) | Re2O (hADM) |
|---|---|---|
| Composition | Polydioxanone-lactide microparticles | Human acellular dermal matrix |
| What it does | Stimulates collagen production | Supplies the material directly |
| After placement | Degrades slowly, leaving the response behind | Settles in the dermis |
| When the result shows | It takes time — it has to be made | The material is already there |
| Layer | Dermis and subdermis | Dermis |
| Chain of custody | By product lot | From donation to distribution |
| Reversal injection | None (degradable) | None (degradable) |
We do not put them in rank order. Products that do opposite jobs cannot be lined up.
Stimulating and supplying — what actually divides them
- Juvelook needs time. The result appears only once the skin has made collagen, so there is a waiting stretch after placement. “Nothing yet” is not a failure there.
- With Re2O the material is already in. It is not a structure that waits to be made — it adds back what has thinned. Placed shallow, small beads show right after treatment, and that is usually a sign the layer was right.
- So the session design differs. The stimulating class is built as a response accumulated over a course; the supplying class is placed, then watched.
Reversibility — neither, but for different reasons
Hyaluronidase dissolves cross-linked hyaluronic acid only. Neither of these is hyaluronic acid, so neither has a reversal injection.
- Juvelook: the result is the response left behind as the microparticles degrade. There is no way to erase only that response right after placement.
- Re2O: a matrix that is absorbed gradually. Likewise, there is no means of reversing it immediately after placement.
So with both classes we start short and add later, and we never say “if it goes wrong we can just dissolve it.”
Which one is a candidate
| If this is the goal | The fit |
|---|---|
| The dermis has thinned and needs support | Re2O — it supplies material directly |
| You would rather it be built by your own skin, even if slower | Juvelook |
| You prefer a human-derived material | Re2O |
| You are more comfortable with a synthetic | Juvelook |
| Volume has deflated | Neither is the answer — that belongs to filling materials |
| You want only a reversible material | That is cross-linked hyaluronic acid |
| Both apply | Different jobs, so we separate them in time |
Can they be combined
Yes. They do different jobs, so they do not replace each other. But we separate them in time — layered on the same day, there is no way to tell which one caused a reaction.
We place one, look at how it settles, and then decide the combination and the order. Which goes first is decided by whichever has thinned more right now.
Frequently asked questions
What most separates Juvelook and Re2O?
They do opposite jobs. Juvelook (PDLLA) stimulates the skin to make collagen; Re2O (hADM) supplies the dermis’s own building material. So the choice is not about better or worse but about stimulating versus supplying.
Which shows a result sooner?
The structure differs. Juvelook shows only once the skin has made collagen, so there is a waiting stretch; with Re2O the material is already in. Both, though, target dermal density and texture — neither is about filling deflated volume.
Can either be dissolved?
Neither is a material hyaluronidase dissolves — neither is hyaluronic acid. Both are materials the body breaks down, so neither stays permanently. Because there is no reversal injection, we start short.
Can they be combined?
Yes. They do different jobs and do not replace each other. But we separate them in time — layered on the same day, a reaction cannot be attributed. We place one, look at how it settles, then decide the combination.
The human origin of Re2O bothers me.
We do not press it — Juvelook and other classes serve the same goal. What we will say is that being human tissue means the record follows it from donation to distribution, with safety managed in layers through donor screening, viral inactivation and decellularisation.
Does either add volume?
Neither is a filling product. Both target dermal density and texture. If deflated volume is the main problem, that is a conversation about filling materials.
Which should come first?
Whichever has thinned more right now. If support is the bigger problem, Re2O first; if you would rather it be built by your own skin, Juvelook first. Then we look at how it settles and decide the next step.
Read next
Who wrote this
Written and reviewed by Lee Chi-Hak, MD, director of Miso Clinic, Daegu. The treatment standards and injection design here are the ones we use in practice.
| Director | Lee Chi-Hak, MD |
|---|---|
| Address | 4F Bombom Building, 125 Dongdeok-ro, Jung-gu, Daegu (Kyungpook National University Hospital Station, Exit 1) |
| Telephone | +82-53-428-2700 |
| KakaoTalk | Miso Clinic channel |
| Hours | Weekdays 11:00–19:00 (lunch 13:00–14:00) / Saturday 10:00–16:00 / Closed Sunday and public holidays |
This page is general information and does not replace medical diagnosis or treatment. Effects and adverse events vary with individual skin condition, age and underlying disease, and no outcome is guaranteed. Any decision to proceed should be made after an in-person consultation with a physician.
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