Dark circles:

there's a reason

creams don't work

1. I slept more than 10 hours, but the area under my eyes still looks bluish.

2. I finished an entire high-end eye cream, but nothing changed.

3. When I gently pull the skin under my eyes, the color looks even darker.

If even one of these applies to you,

your dark circles are

a problem of 'structural deficiency.'

That means the issue lies deep within the skin,

where face masks or supplements simply cannot reach.

Especially for dark circles caused by thin skin,

the only solution is to introduce

a 'support structure' to prop up the thinned layer.

Let me share an honest conversation from the clinic

about Restylane Eyelight—

the product that most precisely

fulfills that supporting role.

💡 Key summary of today's post

Q. Is there only one cause of dark circles?

A. No.

They fall into three types: pigmented, vascular, and structural,

and the approach differs completely depending on the cause.

Q. In what cases is

Restylane Eyelight effective?

A. It is best suited for the

structural type— where thin skin makes vessels show through, or volume loss causes the under-eye area to look hollow.

Q. How is it different from

regular hyaluronic acid fillers?

A. It is specially formulated for the sensitive eye area,

so the risk of the skin appearing bluish from

the Tyndall effect is significantly lower.

Dark circles: why you need to

identify the cause first

Many people misunderstand this,

but dark circles are not a single condition.

Even if the result looks the same,

the underlying cause can be very different.

1. Pigmented type

   Melanin pigment deposits under the skin (brown/black)

   
   
   

2. Vascular type (translucent type)

   Thin skin that lets underlying vessels show through (bluish)

   
   
   

3. Structural type (hollow type)

   A deep tear trough that creates shadows

If you sleep well and are in good health but your dark circles persist,

they are most likely vascular or structural in nature.

That means creams or sleep

simply cannot solve the problem.

In fact, the American Academy of Dermatology (AAD) explicitly states

that these three types must be clearly distinguished

and treated accordingly.

How Restylane Eyelight

differs from regular fillers

The under-eye area has thin skin, frequent movement, and

an extremely complex network of

blood vessels and lymphatic flow.

Using regular filler incorrectly in this area

can easily cause the skin to appear bluish—

a phenomenon known as the Tyndall effect.

Restylane Eyelight has low viscosity and small particle size,

allowing it to spread naturally in thin tissue

with minimal show-through.

It is also formulated with NASHA technology,

which means it tends to last relatively longer

compared to regular fillers.

The downside is cost.

As a specialized product, the price is higher,

but for a sensitive area like the eye zone, using a product

matched to the tissue's specific characteristics is the medically sound choice.

👨‍⚕️ Dr. Wi Young-jin's practical note:

In my experience, the key to under-eye procedures is

injection depth and volume control.

I typically inject a small amount—

around 0.3–0.5cc per side—

placed precisely in the supraperiosteal or submuscular plane.

Rather than injecting a large amount,

placing a small amount in exactly the right location

is the key to minimizing swelling and side effects.

That said, for those with significant fat protrusion,

filler improvement is limited,

and I make sure to discuss this during consultation.

Who is

Restylane Eyelight

right for?

Cases I actively recommend:

• Those whose under-eye area appears bluish and translucent

• Those with deepened tear troughs causing shadows

• Those whose under-eye volume looks sunken due to aging

• Those who have not seen results from creams or supplements

Cases requiring caution:

• Those whose main cause is pigmentation (laser treatment first)

• Those with significant fat protrusion or sagging (consider a surgical approach)

Rather than recommending filler unconditionally,

confirming the cause type first

is the first step toward a successful outcome.

The procedure and

realistic recovery timeline

Even including anesthesia, the procedure typically takes

around 10–20 minutes in my experience.

• Days 1–3

  Bruising and swelling may occur, as this area is rich in blood vessels.

  
  
  

• Weeks 1–2

  Swelling subsides and the filler settles naturally into place.

  
  
  

• Final result

  The most accurate assessment can be made 2 weeks after the procedure.

Duration varies considerably between individuals,

but typically ranges from 6 to 18 months.

While it is unfortunate that results are not permanent,

a major advantage is that the filler can be dissolved immediately

if any issue arises.

Frequently Asked Questions (FAQ)

Q1. Is there a way to self-diagnose?

A. Gently pull the skin just below your eye.

If the color lightens, it is likely structural or vascular;

if it stays the same, it is likely pigmented.

Q2. Is the procedure painful?

A. Numbing cream is applied beforehand,

so most people feel only a mild sting.

That said, because the area is sensitive,

you may feel it more acutely if you are tense.

Q3. I had a different filler previously—

can I add more on top?

A. Checking the layer of any remaining filler is essential.

Incorrect layering can cause excessive swelling,

so please be sure to mention this when you visit.

If you have any questions,

feel free to reach out via KakaoTalk.

This has been Dr. Wi Young-jin.

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