Double Slim Injection: Real Cost per Session

Double Slim costs slightly more per shot, but higher DCA often halves total sessions needed.

Published -

May 5, 2026

Updated -

Sep 5, 2026

Author

Wi Young-jin · Chief director

Seoul National University College of Medicine · Seoul National University Hospital Specialist

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Double Slim Injection: Real Cost per Session

DoubleSlim Injection Price,

When you look beyond a single session,

the math changes for a reason

"I’ve heard contour injections have to be done 4 to 5 times,

but the cost is too burdensome,"

many people say.

Today, let me walk you through the reason step by step.

DoubleSlim Injection,

it’s more than a name change

DoubleSlim Injection is a fat-dissolving injection developed at Beautystone with its own formula

by increasing the DCA (deoxycholic acid) content.

If a standard contour injection focuses on reducing swelling,

DoubleSlim Injection is weighted more toward

breaking down fat cells themselves.

Because the ingredients themselves are different,

the quality of the results has to be different as well.

Why is one session priced

close to two or three sessions elsewhere?

"DoubleSlim Injection is a highly concentrated fat-dissolving injection with increased DCA content.
Compared with standard injections, swelling lasts 1 to 2 weeks longer, but

one session delivers the effect of 2 to 3 sessions of typical market injections, so
in the end, the total number of sessions and the overall cost
are cut in half."

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

In the consultation room, I get asked at least fifteen times a week, "

Why is one DoubleSlim session

about the same price as two standard contour injections?"

That is a question many people ask.

The real reasons the price differs are

the "drug content" and the "effective dose".

Standard contour injections on the market are diluted to a concentration of 0.5–1%,

so you have to split them over 4 to 5 sessions before

the cumulative effect starts to show.

By contrast, DoubleSlim is a formula with the content increased by nearly

1.5 to 2 times,

so the effective ingredients in one session

are comparable to 2 to 3 sessions of market injections.

The per-session price may be about twice as high,

but the total number of sessions drops from 4 to 2, so

in the end, what the patient pays as the

"final cost" becomes more economical.

DoubleSlim Injection Price,

how to choose what’s right for you

For easier reading, I’ve summarized it in a table.

Type	Recommended choice	Reason
Those with a schedule within 2 weeks	Standard contour injection	Swelling tends to subside relatively quickly
No effect after 4 or more contour injections	DoubleSlim Injection	Low content is likely the cause
Those who want to lower total cost	DoubleSlim Injection	Cuts the total number of sessions in half
Those with little fat who only want to reduce swelling	Standard contour injection	High-concentration DCA is unnecessary in this case

If you chase only the cheapest option and end up getting 8 sessions of a diluted injection with less than 0.3% DCA,

your contour won’t change and you’ll just waste time and money.

In the end, you may come back a year later

looking for a stronger procedure.

Before getting DoubleSlim Injection,

the three questions we hear most often

Q1. Are there people who finish after just one session?

For those with only a small amount of fat,

one session can already define the contour.

But for those with a thicker fat layer,

up to 2 sessions are needed to see a clear change.

Honestly, claims that it will definitely end in one session

should be taken with caution.

Q2. How much time should we leave between sessions?

Usually, a 3-week interval is recommended.

The swelling needs to fully subside so we can accurately assess the results

and adjust the dosage.

If the sessions are too close together, it becomes hard to tell whether it’s swelling or actual fat,

which raises the risk of over-injection.

Q3. How much bruising or pain should I expect?

On the day of the procedure, there may be a burning sensation for about 2 to 3 hours.

Swelling may last for 1 to 2 weeks,

and in rare cases a firm nodule may form, but

it usually loosens quickly with massage.

If you take just one thing away today,

— don’t judge by the price of one session alone,

but by multiplying the total number of sessions needed until

your jawline actually changes.

In the next post,

I’ll explain how to plan around the 1 to 2 weeks of swelling after DoubleSlim Injection

if you have upcoming plans.

This has been Dr. Wi Young-jin.

Frequently asked questions

Q. Are there some people who only need one treatment and are done?

A. For those with relatively little fat, a single treatment can already help define the contours.

Q. How long should the interval between sessions be?

A. A 3-week interval is usually recommended.

Q. How much bruising, pain, or other side effects should I expect?

A. You may feel a burning sensation for about 2–3 hours on the day of the procedure.

Q. How many days will the swelling last after receiving the Double Slim Injection?

A. Some swelling may last for about 1 to 2 weeks. On the day of the treatment, you might feel a warm, burning sensation for 2 to 3 hours. In rare cases, firm nodules may develop, but they usually resolve with massage. However, we recommend planning your treatment well in advance of any important events.

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