Concern

What are fine lines?

Fine lines are shallow, thin creases that form in the outer layers of the skin. They are often the first visible sign of skin aging and commonly appear in the late twenties or thirties, although the timing varies widely. Unlike deep wrinkles and folds, fine lines are usually still soft and may fade when the skin is stretched or well hydrated.

Fine lines matter because they tend to deepen over time if the causes are left unaddressed. Treating them early is often simpler and gentler than correcting established wrinkles later, which is why many people in their twenties and thirties visit clinics in Hongdae and across Seoul for preventive care.

What causes fine lines?

Repeated muscle movement: Smiling, squinting and frowning fold the skin in the same place thousands of times.
Dehydration: Skin that lacks water looks crepey and shows lines more clearly, especially under the eyes.
Sun exposure: UV light breaks down collagen and elastin, which is one of the biggest drivers of early lines.
Natural collagen decline: Collagen production slows gradually from early adulthood.
Lifestyle: Smoking, poor sleep, stress and frequent screen squinting can contribute.
Climate: Seoul's dry, cold winters and heated indoor air can make lines look more obvious seasonally.

How does the doctor diagnose the type of fine lines?

Re:berry's approach is diagnosis before packages. Not all fine lines are the same, and the right treatment depends on what is causing them. During consultation, the doctor typically looks at your face at rest and while you make expressions, checks skin hydration and texture, and asks about sun habits and skincare.

Dynamic lines

These appear when you move your face and soften at rest, such as crow's feet when smiling or forehead lines when raising the brows. Muscle activity is the main driver.

Dehydration lines

These are fine, crisscrossed lines that look worse when the skin is dry and improve with hydration. They are common on the cheeks and under the eyes.

Static or early structural lines

These remain visible even at rest and suggest collagen loss or early laxity. They may need a combination of skin quality treatments and lifting support.

Which Re:berry treatments may help?

Botox for expression lines

Botox relaxes the specific muscles that crease the skin, which may soften dynamic lines around the eyes, forehead and between the brows. Effects typically begin within a few days and last around three to four months. Our guide on Botox for fine lines explains dosing and placement in more detail.

Skin boosters for texture and hydration

Boosters such as Rejuran Healer, PDRN, Re2O and Laetigen are injected into the upper skin to support hydration, repair and skin quality. They are often used for dehydration lines and crepey under-eye skin. Results usually build over a series of sessions.

Skin Botox for fine texture

Skin Botox, sometimes called micro Botox, places very diluted amounts superficially. It may help with a smoother surface and fine texture lines in some patients, while keeping natural expression.

Energy-based lifting for early laxity

When fine lines are linked to early loosening of the skin, devices such as Thermage FLX, Sofwave or Ultherapy Prime may be considered to support collagen and firmness over time.

Why combinations often work better

Most people have more than one type of fine line. For example, crow's feet may be partly dynamic and partly due to thin, dehydrated skin. In that case, Botox alone may soften the movement but leave crepey texture, while a booster alone may improve texture but not the creasing. A combined plan addresses each cause. The doctor will explain the role of each step and space treatments safely. You can read about pairing options in what treatments can be combined in one visit.

What is a realistic timeline?

Week 0: Consultation, diagnosis and a written plan. Some treatments can start the same day if appropriate.
Weeks 1–2: Botox effects typically become visible within 3 to 14 days.
Weeks 2–8: Boosters are usually repeated every two to four weeks, with skin quality improving gradually.
Months 3–4: Review and maintenance. Botox is often repeated, and boosters move to maintenance intervals.

Results vary by individual and depend on age, skin type, lifestyle and how consistently sunscreen and skincare are used.

What can I do at home?

Apply broad-spectrum sunscreen every day, including on cloudy days in Seoul
Use a moisturizer suited to your skin type and consider a humidifier in winter
Introduce retinoids carefully, if your doctor agrees, and pause them around treatments as advised
Wear sunglasses to reduce squinting outdoors
Prioritize sleep and avoid smoking

Side effects and safety

Each treatment carries its own risks. Botox may cause temporary bruising, headache or, rarely, eyelid or brow heaviness. Boosters commonly cause small bumps, redness or bruising that settle within days. Energy devices may cause temporary redness or swelling. Treatments are usually postponed during pregnancy or breastfeeding and when there is active infection. The doctor will review your medical history before recommending anything.

Getting started at Re:berry Hongdae

A consultation is the best first step, especially if you are unsure which type of lines you have. Pricing depends on the treatments, areas and plan, and is confirmed in writing at consultation. See Location & Hours for the address and opening hours, or request an appointment via our Booking page.

Can fine lines be reversed?

Fine lines can often be softened, and some dehydration lines may become much less visible with hydration and boosters. Lines caused by sun damage and collagen loss usually improve gradually rather than disappear. Ongoing sun protection and maintenance help keep improvement. Results vary by individual, so the doctor will set realistic expectations at consultation.

Is Botox or a skin booster better for fine lines?

It depends on the cause. Botox is generally better for lines that appear with movement, such as crow's feet. Skin boosters are often better for crepey, dehydrated texture. Many people benefit from both, planned in a sensible order. A doctor's assessment of your lines at rest and in motion helps decide.

At what age do fine lines usually start?

Many people first notice fine lines in their late twenties or thirties, but genetics, sun exposure, skin type and lifestyle make a big difference. Some people see early lines sooner, especially around the eyes. Starting good sun protection and hydration early is helpful regardless of age.

Do under-eye fine lines need special care?

Yes. Under-eye skin is thin and often dehydrated, so treatment tends to be gentler. Boosters such as Rejuran Healer are commonly discussed for this area, and Botox doses near the eye are kept conservative. The doctor will also check for hollows or dark circles, which may need different treatment.