Chin Filler Consult: Why Check Below Lips First?
Chin Filler Consult: Why Check Below Lips First?
Chin Filler Consult: Why Check Below Lips First?
Why chin filler needs to address the hollow below the lips for a natural side profile line.
Published -
Updated -

Author
Wi Young-jin · Chief director
Seoul National University College of Medicine · Seoul National University Hospital Specialist
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Chin filler
You came in for a consultation,
why do we look at
the area under the lips first?
Let me give you the conclusion first.
If filler is placed only in the chin,
the side profile can actually look more awkward.
I'll explain why in this post.

They may look similar, but
the key point is elsewhere
Chin filler, literally,
adds volume to the chin point
to improve a recessed chin and a short chin.
But this is where many people misunderstand it,
the chin should be viewed as a 'plane,' not a 'point.'
Proper chin correction
must also include the hollow under the lips
and is something that has to be considered together.
Director Wi Young-jin's
key insight
The chin and the area under the lips are connected structures.
If filler is placed only in the chin, it looks unnatural,
and the hollow under the lips must also be corrected
to create a natural line from the side.

Last month, a client in their early 40s came in,
and they had received chin filler twice at another clinic.
The front view was fine, but from the side
the chin tip seemed to jut out.
The side profile line
the lower lip, the hollow under the lips, and the chin
these three points should connect in a smooth S-curve
for the profile to look natural.
So if I usually use 1.0 cc in the chin,
I place about 0.2 to 0.3 cc in the hollow area under the lips
in a shallow layer.
Director Wi Young-jin's key summary
Chin filler is not a procedure that looks only at the chin tip.
The side profile is much more important than the front,
and to improve the side line, the hollow under the lips
must be considered together to look natural.

In my clinic, I
divide it like this
Type | Features | Approach |
Recessed chin + deep under-lip hollow | Short chin and a pronounced hollow below the lips | Treat chin tip + under-lip area together |
Only the chin tip is short | The under-lip area is flat; only the chin recedes | Focus on the chin tip, with under-lip support |
Only under-lip hollow type | Chin length is fine, but the side line sinks in | Light correction only under the lips |
Chin + severe wrinkle line | A deep groove from the corners of the mouth to the chin | Consider marionette lines as well |
About 70% of the people who come for consultation
fall into the first type.
Many come back because after treating only the chin, the side profile looks awkward
so,
it's more cost-effective to assess both from the start.
If you've read this far,
you may be wondering this
Q1. If filler is placed under the lips, won't it look strange when smiling?
If a soft filler is placed very superficially
in a small amount, it won't look lumpy.
Usually I stop at around 0.2 to 0.3 cc.
Q2. How long does it last?
The chin usually lasts about 1 to 1.5 years,
while the under-lip area is affected by facial expressions
and lasts about 8 to 12 months.
Q3. Where are bruising and swelling worse?
The under-lip area may get mild bruising,
and the chin is in a deeper layer, so bruising is less common,
but swelling can last 2 to 3 days longer.
I hope today's post was helpful.
This has been Wi Young-jin.
Read more
▶Rejuran vs Juvelook, which is right for my skin?
▶Peanut-shaped face: Can temple filler help? Radiesse duration and side effects fact-check
▶Juvelook Eye: Is it really effective for dark circles?
▶Immediate Radiesse vs gradual Sculptra, which option is right for me?
Frequently asked questions
Q. If I get filler under my lips, won’t it look strange when I smile?
A. If you use a very small amount of the smooth formula and apply it very lightly, it won’t look caked.
Q. How long does it last?
A. The chin tip usually lasts about 1 to 1.5 years, and the area under the lips lasts about 8 to 12 months because it is affected by facial expressions.
Q. Where is the bruising or swelling more severe?
A. A slight bruise may form under the lips, and because the tip of the chin is a deeper layer, there is less bruising, but swelling may last 2–3 days longer.
Q. For chin fillers, is the front view or the side profile more important?
A. The side profile is actually much more important. For a natural-looking side view, the lower lip, the dip below the lip, and the tip of the chin should connect in a soft S-curve. If you only fill the tip of the chin, it can end up looking like it's awkwardly jutting out from the side.

Chin filler
You came in for a consultation,
why do we look at
the area under the lips first?
Let me give you the conclusion first.
If filler is placed only in the chin,
the side profile can actually look more awkward.
I'll explain why in this post.

They may look similar, but
the key point is elsewhere
Chin filler, literally,
adds volume to the chin point
to improve a recessed chin and a short chin.
But this is where many people misunderstand it,
the chin should be viewed as a 'plane,' not a 'point.'
Proper chin correction
must also include the hollow under the lips
and is something that has to be considered together.
Director Wi Young-jin's
key insight
The chin and the area under the lips are connected structures.
If filler is placed only in the chin, it looks unnatural,
and the hollow under the lips must also be corrected
to create a natural line from the side.

Last month, a client in their early 40s came in,
and they had received chin filler twice at another clinic.
The front view was fine, but from the side
the chin tip seemed to jut out.
The side profile line
the lower lip, the hollow under the lips, and the chin
these three points should connect in a smooth S-curve
for the profile to look natural.
So if I usually use 1.0 cc in the chin,
I place about 0.2 to 0.3 cc in the hollow area under the lips
in a shallow layer.
Director Wi Young-jin's key summary
Chin filler is not a procedure that looks only at the chin tip.
The side profile is much more important than the front,
and to improve the side line, the hollow under the lips
must be considered together to look natural.

In my clinic, I
divide it like this
Type | Features | Approach |
Recessed chin + deep under-lip hollow | Short chin and a pronounced hollow below the lips | Treat chin tip + under-lip area together |
Only the chin tip is short | The under-lip area is flat; only the chin recedes | Focus on the chin tip, with under-lip support |
Only under-lip hollow type | Chin length is fine, but the side line sinks in | Light correction only under the lips |
Chin + severe wrinkle line | A deep groove from the corners of the mouth to the chin | Consider marionette lines as well |
About 70% of the people who come for consultation
fall into the first type.
Many come back because after treating only the chin, the side profile looks awkward
so,
it's more cost-effective to assess both from the start.
If you've read this far,
you may be wondering this
Q1. If filler is placed under the lips, won't it look strange when smiling?
If a soft filler is placed very superficially
in a small amount, it won't look lumpy.
Usually I stop at around 0.2 to 0.3 cc.
Q2. How long does it last?
The chin usually lasts about 1 to 1.5 years,
while the under-lip area is affected by facial expressions
and lasts about 8 to 12 months.
Q3. Where are bruising and swelling worse?
The under-lip area may get mild bruising,
and the chin is in a deeper layer, so bruising is less common,
but swelling can last 2 to 3 days longer.
I hope today's post was helpful.
This has been Wi Young-jin.
Read more
▶Rejuran vs Juvelook, which is right for my skin?
▶Peanut-shaped face: Can temple filler help? Radiesse duration and side effects fact-check
▶Juvelook Eye: Is it really effective for dark circles?
▶Immediate Radiesse vs gradual Sculptra, which option is right for me?
Frequently asked questions
Q. If I get filler under my lips, won’t it look strange when I smile?
A. If you use a very small amount of the smooth formula and apply it very lightly, it won’t look caked.
Q. How long does it last?
A. The chin tip usually lasts about 1 to 1.5 years, and the area under the lips lasts about 8 to 12 months because it is affected by facial expressions.
Q. Where is the bruising or swelling more severe?
A. A slight bruise may form under the lips, and because the tip of the chin is a deeper layer, there is less bruising, but swelling may last 2–3 days longer.
Q. For chin fillers, is the front view or the side profile more important?
A. The side profile is actually much more important. For a natural-looking side view, the lower lip, the dip below the lip, and the tip of the chin should connect in a soft S-curve. If you only fill the tip of the chin, it can end up looking like it's awkwardly jutting out from the side.
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