Miso Clinic · Treatment guide

How many GOURI sessions do you need?

“I was told you need three.” Many people arrive with that number. We start with one — because with no particles GOURI can cover the whole face as a sheet in one go. Whether to add is decided from the skin at four weeks.

Treatment guideAbout a 5-minute readSeptember 2026Miso Clinic, Daegu · Dr. Lee Chi-Hak

The short answer

In short: we start with one session and decide from the skin at four weeks whether to add. Further sessions go at four-to-six-week intervals, and the result is judged at twelve weeks. We do not fix the number in advance for one reason — skin comes up at different rates in different people.

And, to be plain, no human study has compared one session against three. So Miso Clinic starts with one and decides on more after looking at the skin at four weeks or later.

Why we start with one session

GOURI has no particles, so it spreads as a sheet along the plane it enters — which means one placement can cover the whole face. It is not designed to be built up over sessions the way point-filling products are.

There is a practical reason too. Polycaprolactone has no reversal injection, so too little can be topped up while the other direction is harder. We start conservatively and decide at four weeks.

Why wait four weeks before deciding

GOURI is not a treatment that shows on the day. The earliest recorded change in the literature is at four weeks, and tissue collagen increase was confirmed at six weeks in animals. Deciding at two or three weeks that “it did nothing” and booking another session means counting a change that has not arrived yet as absent, and adding sessions on that basis.

So we wait at least four weeks after the first session before deciding. The calendar does not decide; the skin does.

How Miso Clinic decides

  • One session to begin. A spreading formulation can cover the whole face as a sheet in one go
  • Review together at four weeks. Texture, fine lines and firmness, checked by examination.
  • One or two more if needed, at four to six week intervals.
  • No prepaid packages. Locking in a session count for a material that cannot be reversed shifts the risk onto the patient.

Which treatment fits which concern

Which treatment fits which concern
ConcernTreatments to considerWhy
Have one and seeOne GOURI sessionThe same as our baseline
Top up after four weeksGOURI, 1–2 more4–6 weeks apart
Prefer a treatment with a fixed courseRejuran (3–4 session course)The trial protocol set the count
Supply material directly to thinned skinRe2OCount decided by condition

Which treatment is “best” is decided by the state of your skin right now, not by the product. In consultation we look first at what has been lost and what is still there, before we talk about any product name.

Frequently asked questions

Is one GOURI session enough?

By our standard one is the baseline and more is optional. Whether one was enough shows at four weeks, and if the skin has come up well by then we do not recommend another.

Why one session rather than three?

Because with no particles GOURI can cover the whole face as a sheet in one go. Point-filling formulations are naturally built up over sessions; a spreading one is better placed once, with the result reviewed at four weeks.

Can I shorten the interval to two weeks?

We advise against it. Before four weeks the first session’s change has not fully arrived, and layering on top means nobody can tell what did what.

When do I come back after that?

Decided on the skin, not on a date. When texture starts to feel coarser again is the point to reassess. GOURI may be right again, or something else may suit better — we look at both.

Read next

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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.

Miso Clinic
Medical directorLee Chi-Hak, MD
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Everything on this page is general information and does not replace medical diagnosis or treatment. Effects and side effects vary with individual skin condition, age and underlying illness, and the same result is not guaranteed for everyone. Any decision to proceed should be made in an in-person consultation with a physician.

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