Selrdiem effect,

why it fades in 4–6 months

— the collagen principle

Last Friday, a patient came into the consultation room

saying they wanted to try Selrdiem once,

and they had printed out a stack of materials.

"Doctor, if I get this once, it lasts a year, right?

I heard it’s a collagen procedure."

This question is the starting point for today’s post.

Let me walk you through, step by step, why Selrdiem’s effect

lasts only that long, starting with the principle.

Selrdiem, compared with other collagen procedures,

here’s what makes it different

Selrdiem is a 'collagen filling' procedure that directly injects

animal-derived atelocollagen into the skin.

It is different in nature from procedures like Juvelook or Rejuran

that stimulate your skin to produce its own collagen.

If stimulation-type treatments wake up the skin

over time,

Selrdiem brings in collagen itself and

fills it in.

That’s why the volume is visible

from the next day.

Why does it show quickly but fade quickly,

really?

"Selrdiem is a treatment that directly replenishes collagen,

so you can see volume the very next day,

but it usually lasts 4–6 months.

Since it doesn’t build your own collagen,

but rather 'borrows' collagen itself,

it needs regular replenishment to maintain the result."

— Dr. Wi Young-jin (Beautystone Clinic, Hongdae)

Anything borrowed is eventually broken down

and fades over time.

Clinically, the usual duration is about 4–6 months,

with around 5 months being average depending on

skin thickness and metabolic rate.

In the first week, you see a filled-in look along with

mild swelling, and

it settles in over weeks 2–4,

when satisfaction is highest.

But it starts to gradually diminish after 3 months,

and by 6 months it returns to about 70–80% of the

pre-treatment level.

For people who exercise a lot or have a fast metabolism,

it may fade sooner, around 4 months.

Who Selrdiem suits well

vs. who may be better served by other treatments

Take a look and compare based on your situation.

It is a good choice for those who need results in a short time,

but

over the course of a year, costs can add up.

So I recommend getting the quick effect while also

setting up a long-term stimulation-type treatment.

3 questions people really ask

before getting Selrdiem

Q1. Can you see results with just one session?

Yes, the volume itself is visible immediately after injection.

However, you should expect it to return to baseline after 4–6 months.

Think of it not as a 'one-and-done' treatment,

but as something that lasts about half a year.

Q2. How many times a year should I get it?

On average, 2–3 times a year at 4–5 month intervals.

At first, I recommend a touch-up at the 2-month mark to define the line,

then moving to 6-month intervals after that.

Q3. Does it become uneven as it fades?

Because it breaks down naturally,

it rarely fades in an irregular way.

However, for a few days after treatment,

tiny granules may be felt,

and if the depth is set incorrectly, they can become visible on the surface,

so expertise matters.

If you take away just one thing today —

Selrdiem is not a treatment that 'builds' but one that 'fills,'

and what is filled will eventually fade.

In the next post,

I’ll explain the interval when using Selrdiem together with

stimulation-type treatments.

This was Dr. Wi Young-jin.

Skin Booster treatment details

This month: Filler & Collagen Booster

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Frequently asked questions

Q. Will I see results after just one session?

A. Yes, you can see the volume right away after the injection.

Q. How many times a year should I receive it?

A. On average, it is performed 2 to 3 times a year at intervals of 4 to 5 months.

Q. Doesn’t it become uneven when it’s removed?

A. Because it naturally biodegrades, it rarely comes out in an unusual way.

Q. Does CelluDerm break down faster if I exercise a lot?

A. That is absolutely possible. CellDerm typically lasts about 4 to 6 months, but if you have a high activity level or a fast metabolism, it can wear off a bit faster, around the 4-month mark. Since it acts like borrowed collagen, regular touch-ups are needed to maintain your results.