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Hollow Temples: Juvelook Volume or Filler?

Hollow temples: how Juvelook Volume builds collagen slowly, and when filler is the better fit.

Jul 3, 2026

You catch your reflection and the temples, or the sides of the forehead, look more sunken than they used to. You have not lost weight, but the face reads tired and older than it did. That is often down to a change in volume in exactly those areas.

For hollowing like this, one option discussed alongside simply filling the space is Juvelook Volume, which prompts your own collagen to build up instead. One thing to be clear about first: Juvelook is not FDA-approved in the US and is used in Korea under MFDS authorization, so this is background information rather than a recommendation. Knowing the mechanism, and where it fits, means a consult becomes a comparison rather than a decision made on a product name.

This article covers why the temples and forehead hollow out, how Juvelook Volume works, and which situations it suits. Individual results and recovery vary.

> This is general information from Beautystone, a skin clinic in Hapjeong, Seoul.

What you will learn

How Juvelook Volume fills a hollow area
Why the temples and forehead start to look sunken
Which situations Juvelook Volume suits, and which it does not
What to know before and after, and which recovery signals matter

How Juvelook Volume fills a hollow

Juvelook Volume works differently from a hyaluronic acid filler, which occupies space physically. It stimulates the dermis to produce new collagen of its own, so volume builds gradually over time rather than appearing at once.

Dermis*: the layer beneath the epidermis that holds up the thickness and elasticity of the skin, where collagen is mainly concentrated.

New collagen*: collagen the body makes in response to a stimulus, filling in volume and firmness as time passes.

Research finding that injecting PDLLA into aged skin produced a clearly higher density of collagen fibers than in controls, along with increased blood vessel formation sets out how the material prompts collagen synthesis within the skin. Which is why the change arrives across months rather than immediately after the injection, and why individual results vary.

New collagen building up within the layers of the dermis

Assessing a hollow area before deciding on an approach

Why the temples and forehead look sunken

Hollowing here is less about losing weight than about the structures that held the volume shrinking with age. As an overview explaining that with age or weight loss the superficial fat layer of the temple and the volume of the temporalis muscle both decrease, producing a sunken appearance describes, several layers thin at once and a shadow forms. Broken out, it looks like this.

What changes	What happens
Superficial fat layer	Tends to thin with age
Temporalis muscle volume	Tends to decrease gradually
Cheek fat descending	Drifts down, leaving the upper face emptier
How the face reads	Shadowed, and tired-looking

When the temples and the sides of the forehead hollow, the soft curve across the upper face disappears, and the face reads more worn than it is. Which is why this area usually responds better to restoring volume than to smoothing wrinkles.

A shadow forming across the temple and side of the forehead

When Juvelook Volume is a fit

The same hollow can call for different things depending on the situation. These are the cases where it is worth discussing.

When you want the change to be gradual — because collagen fills in over time, the result comes up quietly rather than abruptly
When the hollow is broad and shallow — it suits raising volume across a surface rather than filling a single point
When you are thinking in terms of a longer horizon — collagen your own body has made settles in gradually
When the hollow is deep and sharply defined — this is the case where comparing against filler and other options is worth doing properly

So the depth of the hollow, how much area it covers, and how fast you want the change are what decide the method. Costs vary by clinic and by how much material is used, so ask for the specifics rather than working from a headline number. This judgment is safest made with a clinician who has looked at the area.

Comparing a broad shallow hollow with a deep, sharply defined one

Why where you have it done still matters

At Beautystone, a small clinic a short walk from Hapjeong Station in Seoul, the first step is not agreeing to fill because something looks hollow, but looking at which layer is empty and by how much, and how fast you want the change. With the same material, where it goes and how it is divided is what determines the result. Being small is what makes it practical to look at one person area and settle the method and the amount together. Wherever you go, it is fair to ask which layer your clinician thinks is empty, and why this material rather than another.

A consultation deciding placement and amount for the treatment area

What to expect, and the recovery signals

Juvelook Volume is injected rather than cut, so getting back to normal is quick. The collagen takes time to settle, though, so the change appears gradually.

How collagen fills in over the weeks after treatment

Worth knowing beforehand.

When it shows — the change across one to three months matters more than the moment right after the injection
Common reactions — swelling or redness at the injection site usually settles within a few days
How it feels during — some pressure can be felt as it goes in, and this varies by area
When to check back — if swelling or pain worsens rather than easing after a few days, contact the clinician who treated you, and seek urgent care for severe or rapidly worsening symptoms

How much changes and how long it holds differ from person to person with the state of the area and how hollow it is, and individual results vary. Put the amount and the placement that suit your own anatomy ahead of the product name, and agree the timing and number of sessions with a clinician. If you are travelling for treatment, plan for follow-up where you live as well, since a clinic in Seoul cannot assess something that develops after you fly home. This article is general information, so whether the treatment suits you is for the clinician who examined you to decide with you.

Checking the treated area in the days after an injection

Frequently asked questions

Q. How is Juvelook Volume different from filler?

A. Hyaluronic acid filler adds volume physically, so the change right after treatment is clear. Juvelook Volume instead prompts your own collagen to form, so volume comes up gradually, which suits someone who wants a gradual change and is not in a hurry. Which one fits depends on how deep the hollow is and how fast you want the change, so it is a conversation to have at a consult. Note that Juvelook is not FDA-approved in the US and is used in Korea under MFDS authorization.

Q. When does it start to show?

A. You may not notice much right after the injection. As new collagen fills in, volume usually comes up gradually over one to three months and tends to carry through to around the six-month mark. Individual results vary, so it is better to give it room than to judge it early.

Q. Can the temples and forehead be done together?

A. The two areas run into each other, so they are often discussed together. That said, how hollow each one is and the state of the layers differ, so dividing the amount and the placement between them matters. Deciding how much goes where is for the clinician who has examined the area.

Q. How long do swelling and bruising last?

A. Mild swelling or redness at the injection site is common and usually settles within a few days. Bruising can take a little longer. If swelling or pain worsens rather than easing after a few days, contact the clinician who treated you.