Guide

What is a contour injection?

A contour injection is a series of small injections that deliver a fat-dissolving or fat-reducing solution directly into localized fat. Formulas vary between clinics and products. Many are designed to break down fat cell membranes or support the body's natural clearance of fat, which is then processed over the following weeks.

At Re:berry, the contour injection is called Berry Slim and is commonly paired with ONDA, a microwave-based device. For a general overview, see what is a contour injection? and the main Berry Slim contour injection page.

Is my double chin suitable for injections?

A double chin can come from several causes, and the right treatment depends on which one is involved.

Localized fat: A soft pad of fat under the chin is the most suitable for injections.
Loose skin: Sagging skin may need tightening or lifting instead of, or in addition to, fat reduction.
Bone structure: A small or receding chin can make a double chin look larger; filler or other approaches may help.
Posture and weight: Overall weight changes can affect results.

The doctor examines the area while you sit upright and look down, and gently pinches to see how much is fat versus skin.

Who should not have a contour injection?

Treatment is usually avoided during pregnancy and breastfeeding, with infection or inflammation in the area, or with certain thyroid or swallowing conditions. Tell the doctor about blood thinners, allergies and any previous neck procedures.

What to expect during treatment

Mapping: The area is marked to keep injections within the fat pad.
Comfort: Ice or numbing may be used.
Injection: Small amounts are injected in a grid pattern, which typically takes 10 to 20 minutes.
Optional ONDA: Where planned, ONDA may be applied in the same visit or on a separate day.

Downtime and side effects

Swelling, tenderness, redness, warmth, bruising and a firm feeling under the chin are common for about 1 to 5 days, though some formulas cause more swelling than others. Rare risks include nerve irritation that affects the smile temporarily, nodules, or skin irregularity. Contact the clinic if you notice difficulty swallowing, uneven smiling or worsening pain.

How many sessions are needed?

Many patients need about 3 to 5 sessions. The interval depends on the formula, ranging from about 1 week for lighter solutions to around 4 weeks for stronger ones. Results build gradually, and the final assessment is usually made several weeks after the last session. Results vary by individual, and weight gain can bring fat back.

Why pair a contour injection with ONDA?

ONDA uses microwave energy to heat fat and support skin tightening. Combining it with contour injections may help both reduce fat and improve the firmness of the skin above it, which can give a cleaner jawline than injections alone. See ONDA face lifting for double chin for that side of the plan.

How do I prepare and look after the area?

Avoid alcohol and supplements that increase bruising for a few days before treatment, and eat normally beforehand. After a session, gentle cold compresses can ease swelling during the first day. Sleep with your head slightly raised, avoid massaging the area unless instructed, and skip saunas and hard workouts for a day or two. Keep hydrated and maintain your usual activity level, since a stable weight helps preserve results.

How will my progress be checked?

The doctor typically reviews the area before each session to decide whether to continue, adjust the formula or pause. Side-profile photos taken in the same position are useful for comparison, because day-to-day swelling and posture can make changes hard to judge in the mirror.

What are the alternatives?

ONDA or other devices alone: No injections and minimal downtime, suitable for people who prefer a device-only plan.
Lifting treatments: For laxity, Ultherapy Prime or a thread lift may be more effective.
Surgical options: Liposuction may suit larger fat volumes; this is outside Re:berry's non-surgical menu.

Pricing depends on the formula, area and number of sessions, and it is confirmed in writing at consultation. Book through our Booking page.

Do contour injection results last?

Fat cells that are destroyed are generally not replaced, but remaining fat cells can grow with weight gain. Many patients keep their results with a stable weight, while others choose occasional maintenance. Results vary by individual, and the doctor will discuss realistic expectations at consultation.

How swollen will I be after a double chin injection?

Swelling varies by formula and person. Some people have mild puffiness for a day, while others look noticeably swollen under the chin for three to five days. Scarves or high collars can help if you have plans. Avoid booking an important event immediately after a session.

Can I get a contour injection on a short trip to Seoul?

You can start treatment during a trip, but most plans need several sessions spaced at least a week apart. For a short stay, the doctor may suggest one session combined with ONDA and a follow-up plan at your next visit. Share your travel dates when booking.