Under-eye volume loss
Hello, this is Raon Dermatology Clinic in Wangsimni!
Among the factors that determine the overall impression of the face, the eye area accounts for a very large share. Clear, firm-looking eyes create a lively impression, but on the other hand, if the under-eye area sinks deeply and casts a dark shadow, it can easily make you look older than you are or give a tired impression! These changes are often not simply a matter of fatigue, but are caused by structural changes within the skin. Today, we will take a closer look at the phenomenon of under-eye volume loss and explain in detail how to manage it effectively :)

Under-eye volume loss
Let's take a closer look!
The appearance of hollow under-eyes results from a combination of skin aging and internal tissue changes. As time passes, the fat layer that supports the eye area is lost, or the underlying muscle tissue atrophies, causing the skin surface to appear sunken! This structural change makes the tear trough deeper and causes the surrounding ligament structure to stand out more. As the skin becomes thinner, the underlying skeletal structure becomes more visible, so the hollowing tendency tends to accelerate over time.
When under-eye volume decreases like this, it does not just change the appearance; it also affects the skin’s overall condition. Areas with weakened support structures are more strongly affected by gravity, leading to faster skin sagging and creating an environment in which fine lines and wrinkles form more easily~ In particular, the skin around the eyes is thin, so when tissue density decreases, its resistance to external irritation drops sharply. Therefore, maintaining appropriate volume under the eyes is very important not only for improving appearance but also for slowing down aging around the eyes.

Let's take a closer look!
Why is it important?
Compared with other parts of the body, the under-eye area has the thinnest and most sensitive skin, so ingredient selection must be approached carefully when managing it. Because there are few sebaceous glands, it is prone to dryness, and because microvessels are densely distributed there, it responds sensitively to irritation! If a material with large particles or a strong foreign-body sensation is used forcefully in this area, nodules may form, leaving the skin surface uneven. Once a nodule forms, it is difficult to resolve, so it is advisable to consider options whose safety has been confirmed from the beginning.
In addition, it is important to remember that the skin around the eyes is like a thin membrane, so substances inside it can easily be projected outward. If a certain ingredient appears bluish under the skin, causing a Tyndall effect, it may instead look as if dark circles have become worse! For this reason, under-eye treatment should proceed in a direction that enhances the skin’s own regenerative ability and forms natural-looking volume, rather than by inserting large amounts of artificial filler. The key is to use ingredients that blend harmoniously with the surrounding tissue and cause as little sense of foreignness as possible!
<Importance of ingredient selection>
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Eye-area skin is thin and has few sebaceous glands
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Risk of nodules when choosing materials with large particles
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Risk of Tyndall effect is also high
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Discomfort in daily life, such as foreign-body sensation and swelling

Why is it important?
- Lituo
One method that has been frequently used recently to structurally reinforce the under-eye area is Lituo. Lituo is based on ECM, an extracellular matrix component, and works by rebuilding the skin’s internal environment! While conventional methods have focused on temporarily filling space, Lituo directly supplies key components that make up skin tissue, helping to strengthen the dermis. The injected ingredients not only fill the tissue spaces immediately but also stimulate fibroblast activity, helping improve the skin’s own environment.
The active ingredients delivered into the tissue go through a process that normalizes the skin’s internal regeneration cycle and increases tissue density over time. As the skin itself regains healthy strength, the previously thinned skin layer becomes thicker and elasticity is restored~ Because it creates a natural sense of fullness rising from within the skin rather than an artificial volume, it does not look awkward even when facial expressions change. In particular, it plays a very positive role in strengthening the basic resilience of the under-eye skin that has thinned due to aging :)

- Lituo
Why is it suitable?
The reason Lituo is especially suitable for the under-eye area is its excellent spreadability and low viscosity. Around the eyes, the skin is thin and moves often, so it is most important that the injected substance spreads evenly without pooling in one place! Lituo has a soft, near-liquid texture, so it can be applied evenly even to narrow and sensitive areas without clumping. Thanks to this, there is less concern that the skin surface will become bumpy after injection, and it blends quickly with the surrounding tissue, offering the advantage of feeling almost non-greasy.
It is also composed of ingredients similar to human tissue, so even people with sensitive skin can continue treatment comfortably. Reactions such as swelling or redness after injection are relatively minimal, and over time natural volume is formed through self-tissue regeneration! Because it can effectively deliver the necessary nutrients and regenerative ingredients without placing excessive pressure on the thin under-eye skin, satisfaction tends to be high. When you want delicate management of even the fine contours around the eyes, Lituo can be a very efficient alternative.
<Lituo benefits>
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Low viscosity and excellent spreadability
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Naturally blends into tissue after injection
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Minimal immune reaction, rejection, or foreign-body sensation
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Naturally improves under-eye wrinkles and hollowness

Why is it suitable?
- Rejigen
Meanwhile, when direct collagen supplementation is needed, using Rejigen is appropriate. Rejigen is a process that directly delivers purified collagen components to the dermis layer of the skin to quickly make up for the lack of elasticity! When collagen, which makes up more than 90% of our skin, decreases, the skin loses elasticity and becomes sunken, and Rejigen directly fills this gap to enhance the tissue’s structural cohesion. In particular, when applied to areas like the under-eye area, where skin density drops sharply, you can expect immediate volume formation along with a brighter skin tone.
The atelocollagen used in Rejigen is an ingredient that removes factors that may trigger immune rejection, thereby increasing safety. When injected around the eyes, it faithfully serves as a supporting structure and helps boost the surrounding tissue’s self-regenerative capacity~ Through this, the hollow look under the eyes is eased, and fine wrinkles are smoothed out, allowing the overall eye area to maintain a firmer appearance. If you want to restore healthy elasticity by increasing density within the skin, this type of collagen supplementation can be very helpful :)
<Rejigen>
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Direct collagen supplementation
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A concept that effectively fills under-eye hollowness
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Improves fine wrinkles and uneven under-eye skin

- Rejigen
Under-eye collagen procedure

