2026-10-02
Fat-Dissolving Injection Ingredients: Is Checking for "Steroids" Really Enough?
Learn why checking fat-dissolving injection ingredients goes beyond steroids. Understand DCA, injection depth, formulation ratios, and safety guidance by Dr. Song Jong-geun at Pixel-Lab Plastic Surgery Clinic in Sinnonhyeon, Seoul, Korea.

Have you ever checked what ingredients are actually inside the fat-dissolving injections you receive?
Even with the exact same 10cc volume, the mechanism of action and your body's response will differ depending on what is formulated in that syringe.
In particular, checking whether steroids and deoxycholic acid (DCA) are included is essential.

Hello,
I am Dr. Jong-geun Song, Head Director of Pixel-Lab Plastic Surgery in Sinnonhyeon.
Pixel-Lab Plastic Surgery's 'HaruFit' is a fat-dissolving injection crafted with a proprietary, trademarked recipe based on 15 years of clinical experience and patient data, developed through direct research into its ingredients and optimal compounding ratios.
When consulting patients considering fat-dissolving injections,
I am often asked:
"Does this contain steroids?"

To give you the bottom line right away:
You must absolutely verify
the ingredients of fat-dissolving injections.
However, simply checking the names of the ingredients is not enough.
Because even when using the identical active ingredients, the outcomes and biological responses vary significantly depending on the depth and formulation ratio the medical team injects.
Today, I will walk you step-by-step through the working principles of fat-dissolving injections, two core criteria to review when inspecting ingredients, and the crucial question you must ask right after seeing the ingredient list.
1. How do fat-dissolving injections work?

Fat-dissolving injections are procedures that inject a specialized solution into the subcutaneous fat layer
to induce the breakdown of adipocytes (fat cells).
Afterward, our body clears out
the broken-down fat via natural metabolic processes.
The goal of this treatment is not merely to temporarily shrink the size of fat cells,
but to take an approach aimed at reducing the actual number of adipocytes.
However, remaining fat cells
can expand again if you gain weight.
That is why I never tell patients that
the procedure alone finishes all body contouring management.
I consistently guide patients to combine post-treatment care
with dietary control and regular aerobic exercise.
2. Ingredients are evaluated across two key axes

When evaluating fat-dissolving injection ingredients, there are two primary factors I check first.
One is whether steroids are included, and the other is whether deoxycholic acid (DCA) is applied.
Type | Ingredient Composition | Characteristics |
Red | Contains Steroids | Designed to simultaneously alleviate swelling and inflammation |
Green | Steroid-Free | Mild intensity for those seeking gradual, gentle changes |
Purple | Steroid-Free + Deoxycholic Acid | Acts powerfully on fat cells for localized, targeted fat breakdown |
During consultations, I transparently explain
that the Red type contains steroids.
Only when patients know exactly what ingredients are being administered
can treatment frequency be safely managed for repeated sessions,
and those who feel uncomfortable with steroids
can deliberately choose a steroid-free option.
3. Hearing "It's steroid-free" alone is not enough

Does that mean steroid-free injections
are unconditionally better?
Not necessarily.
Even if an injection is advertised as steroid-free,
the specific ingredients and compounding methods
vary from clinic to clinic.
Some clinics use their own proprietary blends mixing various compounds,
so rather than merely checking whether steroids are absent,
it is far wiser to verify what actual ingredients are used instead.
In other words, rather than stopping at the question,
"Does this contain steroids?",
you should follow up with,
"Then what ingredients are inside?"
I believe that only when a clinic can answer that question specifically
can patients accurately judge whether the procedure is right for them.
4. For deoxycholic acid, injection depth and compounding ratio matter more than just the ingredient itself

Deoxycholic acid is an ingredient widely used to target fat cells
and aid in localized fat reduction,
and it is also utilized in HaruFit Purple.
What matters most is not just the presence of the ingredient,
but how it is administered.
Even with identical deoxycholic acid, it must be injected into the targeted fat layer
at the appropriate depth and compounding ratio
to achieve the intended therapeutic results.
Therefore, when using deoxycholic acid,
I carefully design both the injection depth and formulation ratio
based on the specific characteristics of the ingredient.
First, the medical team must adjust the injection depth precisely to match the targeted fat layer. Second, the medical team must formulate ingredient ratios while considering both therapeutic efficacy and cutaneous tissue reactions. |
Ultimately, even with the same ingredient,
'where and how much is placed' is what matters.
This is precisely why Pixel-Lab custom-formulated the compounding ratios of HaruFit in-house.
5. Injection volume and technique differ across treatment areas


When determining volume, I first evaluate
the surface area and the thickness of the fat layer.
For broader areas such as the upper arms,
I divide the volume evenly across the posterior, lateral, anterior, and medial sections,
while for the abdomen,
I partition the injection into zones like the lower abdomen, upper abdomen, and love handles.
If a doctor injects the solution concentrated in a single spot,
the skin surface can appear uneven or irregular.

In contrast, the double chin has a thin subcutaneous layer
and sits close to critical anatomical structures and nerves.
Therefore, under the chin, I prioritize precise anatomical depth
over sheer injection volume.
In short, the structural design of the injection
is just as critical as its chemical composition.
6. How are side effect risks managed?

Following the procedure, patients may experience
mild stinging pain, bruising, and localized swelling.
As the active ingredients work,
some patients may also notice temporary palpitations, chills, or mild diaphoresis.
I apply numbing cream for pain-sensitive patients
and thoroughly screen current medications and underlying conditions before treatment.
If you are pregnant or breastfeeding, have cardiovascular disease,
severe allergies, or coagulation disorders,
or if you are taking anticoagulants
or have active dermatitis in the treatment area,
the decision to proceed must be weighed very cautiously.
If you have previously experienced skin dimpling, indentations, or asymmetry after fat-dissolving injections,
please make sure to share this during your consultation.
7. When can you expect to see visible results?


A certain amount of time is required for fat cells to break down
and for their residual byproducts to be metabolized and eliminated by the body.
Subtle volume changes often start to show around week 1,
and contour refinements are typically noticeable after 2 weeks.
In fact, in cases measured at the 2-week mark,
we have observed circumference reductions of around 2cm,
such as decreasing from 26cm to 24cm.
However, the extent of these changes varies
depending on individual fat density, anatomical area,
injected dose, and personal lifestyle habits.
Considering these metabolic cycles,
I generally recommend a basic protocol of at least 3 sessions
spaced 2 to 4 weeks apart.
Response rates will naturally differ depending on fat thickness
and individual metabolic baseline.
I also advise patients to maintain ample hydration,
healthy dietary habits, and routine aerobic workouts post-procedure.
8. Frequently Asked Questions

Q1. Do you disclose the fat-dissolving injection ingredients during consultation?
Yes. Pixel-Lab Plastic Surgery explains the ingredient composition for each type and whether steroids are present upfront, allowing patients to make an informed choice together with the doctor.
Q2. Should I avoid types that contain steroids entirely?
Steroids are included to help suppress swelling and post-injection inflammation. However, treatment intervals and total frequency need careful adjustment for repeated sessions, and if you have concerns, you can safely opt for steroid-free formulations.
Q3. Are fat cells destroyed permanently, or do they just shrink in size?
Depending on the formulation, fat-dissolving injections work to reduce the size or the absolute number of fat cells. However, remaining fat cells can expand if total body weight increases.
Q4. Can I choose a clinic based solely on price?
I strongly advise checking ingredient compositions and injection design before price. Even with identical volumes, differing ingredients and injection delivery techniques yield completely different therapeutic responses.
Q5. Can I combine this with injections received from another clinic?
This depends on what ingredients you received and at what dosages. If you share your prior treatment history, we can thoroughly review it together during your consultation.
Checking the ingredients of a fat-dissolving injection
is by no means a demanding or unreasonable request.
Knowing what is being administered into your body
is a natural and necessary patient right.
And once you have checked the ingredient label,
there is one more critical question I encourage you to ask:
"At what anatomical depth, and in what compounding ratio, will this be injected?"
I believe that only after confirming this question
can you truly compare fat-dissolving injections
with clarity and confidence.




*This article was authored directly by Pixel-Lab Plastic Surgery Clinic for medical information and promotional purposes in compliance with Article 56, Paragraph 1 of the Medical Service Act. Because all treatments and surgical procedures carry potential risks of adverse effects depending on individual physiology, we strongly recommend consulting thoroughly with a qualified medical specialist prior to making any decision.