Undereye Treatments for Hollowing and Dark Circles

Why the Undereye Area Is Different

The skin beneath the eye is the thinnest on the face, averaging 0.5mm in depth compared to 2mm elsewhere. It has fewer sebaceous glands, less structural collagen, and almost no subcutaneous fat in younger skin. As the face ages, three interconnected changes occur in this region simultaneously.

First, the orbital fat pads that sit beneath the eye shift forward and downward due to the weakening of the orbital septum, a fibrous membrane that holds them in place. This creates the appearance of puffiness above, and a hollow valley beneath, known as the tear trough. Second, the skin itself loses collagen and elastin, becoming thinner and more translucent, which makes the underlying musculature and vasculature more visible and contributes to the appearance of dark circles. Third, volume loss in the mid-face causes the cheek to descend, deepening the shadow beneath the lower eyelid and elongating the appearance of hollowing.

Dark circles specifically have multiple causes that require different treatments. Vascular dark circles, which appear bluish or purple, are caused by the visibility of blood vessels through thin skin. Pigmented dark circles, which appear brown, are caused by hyperpigmentation in the skin itself, often exacerbated by sun exposure, friction, or inflammation. Structural dark circles are shadows created by the physical depression of the tear trough and have nothing to do with the skin colour at all. Most people present with a combination of all three, which is why a single treatment rarely resolves the concern completely.

PRF — Platelet Rich Fibrin

What It Is

Platelet Rich Fibrin is a regenerative treatment derived from the patient's own blood. A small amount of blood is drawn, centrifuged to concentrate the platelets and growth factors, and the resulting fibrin matrix is injected into the treatment area. Because it uses the patient's own biological material, it carries no risk of allergic reaction and is considered one of the safest injectable options available.

How It Works

PRF works by delivering a concentrated dose of growth factors — including PDGF, TGF-beta, VEGF, and IGF — directly into the tissue. These growth factors stimulate fibroblast activity, which drives collagen and elastin synthesis in the treated area. The fibrin matrix also acts as a scaffold that holds the growth factors in place for a sustained release period of several days to weeks, rather than dispersing immediately after injection.

The primary mechanism is tissue regeneration rather than volume replacement. PRF stimulates the skin to produce its own structural proteins, which gradually improves skin quality, thickness, and elasticity over a period of weeks to months. It has limited volumising effect and is not well suited to significant hollowing. Its main strength is in improving the quality of very thin, crepey undereye skin and reducing the visibility of fine vascular structures beneath the surface.

What It Addresses

PRF is most effective for skin quality concerns in the undereye area: fine lines, crepey texture, skin thinning, and mild vascular dark circles. It has some effect on mild tear trough hollowing but is not the primary treatment for structural volume loss. It is often used in combination with fillers, where PRF improves skin quality and fillers address volumetric concerns simultaneously.

Treatment Considerations

A typical PRF course involves two to three sessions spaced four to six weeks apart. Results develop gradually over two to three months as collagen synthesis progresses, and are typically visible for nine to eighteen months before a maintenance session is required. The procedure involves minimal downtime, with bruising and swelling resolving within a few days. The cost per session ranges from approximately £300 to £600 in the UK, CAD 400 to 800 in Canada, and AED 1,200 to 2,500 in the UAE, depending on the clinic and the volume used.

Limitations

PRF does not provide immediate results. The regenerative process takes time, and patients who are looking for a visible change within days or weeks are often disappointed. It does not adequately address significant volume loss or deep tear trough depressions, and it has limited effect on pigmented dark circles caused by melanin in the skin rather than vascular visibility.

EZ Gel

What It Is

EZ Gel, also known as albumin gel or PRF gel, is a second-generation development of PRF technology. Like PRF, it is derived from the patient's own blood. The key difference is in the processing method. EZ Gel is heated after centrifugation, which causes the albumin proteins in the plasma to denature and form a thicker, gel-like consistency. This gives the resulting injectable a volume and texture that more closely resembles a soft dermal filler while retaining the biological regenerative properties of PRF.

How It Works

EZ Gel combines two mechanisms of action. The albumin gel component provides immediate, soft volumisation in the treated area, filling the tear trough depression in a way that standard PRF cannot. The growth factor component simultaneously initiates the regenerative process, stimulating collagen synthesis and tissue remodelling over the following weeks. The volumising effect from the albumin gel is temporary, gradually absorbed by the body over two to four months, but during that time the regenerative process is progressing, so some improvement in skin quality persists beyond the point at which the gel itself has been absorbed.

What It Addresses

EZ Gel is well suited to mild to moderate tear trough hollowing combined with skin quality concerns. It offers a more immediate visual result than standard PRF while retaining the biological advantage of autologous material. It is particularly appealing to patients who want some degree of volume restoration but are reluctant to use synthetic fillers, or who have experienced filler complications in the past.

Treatment Considerations

EZ Gel is typically administered in one to two sessions. Results are visible within one to two weeks as initial swelling resolves, and the full regenerative effect develops over two to three months. Longevity varies between patients but generally sits at six to twelve months for the combined effect. Pricing is similar to or slightly higher than PRF, ranging from approximately £350 to £700 per session, with regional variation.

Limitations

EZ Gel is not widely available at all clinics, as it requires specific equipment and training. The volumising effect, while superior to standard PRF, is still modest compared to hyaluronic acid fillers and is not adequate for significant hollowing or structural volume loss. Like all autologous treatments, results vary between patients depending on the quality and composition of their own blood, which is influenced by age, hydration, nutrition, and health status.

Dermal Fillers

What They Are

Dermal fillers for the undereye area are most commonly composed of hyaluronic acid, a naturally occurring polysaccharide that attracts and retains water. Hyaluronic acid fillers used in the tear trough are specifically formulated to be soft and hydrophilic, as the undereye area requires a filler that integrates smoothly with thin tissue and does not create visible lumps or a bluish discolouration beneath translucent skin. The Tyndall effect, a bluish cast caused by light scattering through inappropriately placed or overly hydrophilic filler, is one of the more common complications in inexperienced hands.

How They Work

Fillers physically replace lost volume in the tear trough by injecting a gel-like substance into the subdermal or supraperiosteal plane beneath the eye. The result is immediate structural support of the hollowed area, which lifts the skin, reduces the shadow that creates the appearance of dark circles, and softens the transition between the lower eyelid and the cheek. Hyaluronic acid also has some degree of hydrating effect on the surrounding tissue, though this is secondary to the volumising mechanism.

What They Address

Fillers are the most effective non-surgical treatment for moderate to significant tear trough hollowing and for structural dark circles caused by volume loss and shadowing. They do not improve skin quality, texture, or elasticity, and they have no effect on pigmented or vascular dark circles. They are best suited to patients whose primary concern is the physical depression of the tear trough rather than the quality of the skin overlying it.

Treatment Considerations

A single filler session typically addresses both tear troughs simultaneously, with results visible immediately and fully apparent within two weeks as swelling resolves. Hyaluronic acid fillers in this area last between twelve and eighteen months on average, though individual variation is significant. The treatment is reversible using hyaluronidase, an enzyme that dissolves hyaluronic acid, which is an important safety consideration in an anatomically complex area. Pricing ranges from approximately £400 to £900 per session in the UK, CAD 600 to 1,200 in Canada, and AED 1,500 to 3,500 in the UAE.

Limitations

The tear trough is considered one of the highest-risk areas for filler treatment due to its proximity to the infraorbital artery and the thin, unforgiving nature of the overlying skin. Complications including vascular occlusion, the Tyndall effect, migration, and prolonged oedema are more common here than in other facial areas, and practitioner selection is critical. Filler does not address skin laxity, crepiness, or pigmentation, and in patients with significant skin quality concerns, the volumising effect can paradoxically draw more attention to the texture of the overlying skin.

Fat Grafting

What It Is

Fat grafting, also called autologous fat transfer or lipofilling, is a surgical procedure in which fat is harvested from a donor site on the patient's own body — typically the abdomen, flanks, or inner thigh — processed, and injected into the tear trough and periorbital area to restore volume. It is the only volumising treatment in this category that uses the patient's own fat cells, making it biocompatible and eliminating the risk of allergic reaction or foreign body response.

How It Works

Fat is harvested using a small cannula under local or general anaesthesia, then centrifuged or filtered to remove blood, oil, and damaged cells, leaving a purified fat graft. This is injected in small aliquots into the subdermal and subcutaneous planes of the tear trough and lower eyelid area. The injected fat establishes a new blood supply over the following weeks, and a proportion of the transferred cells survive long-term as living tissue. Surviving fat cells behave like natural fat, responding to weight changes and ageing in the same way as the patient's existing facial fat.

What It Addresses

Fat grafting is best suited to patients with significant volume loss in the periorbital area who are looking for a long-term or permanent solution and are willing to undergo a surgical procedure. It addresses structural hollowing, improves the transition between the lower lid and cheek, and can have some regenerative effect on skin quality due to the stromal vascular fraction and growth factors present in the fat graft. It is often performed in conjunction with blepharoplasty or other facial fat grafting procedures.

Treatment Considerations

Fat grafting carries a more significant recovery period than injectable treatments, with bruising and swelling in both the donor and recipient sites lasting two to four weeks. The initial result appears overcorrected, as the surgeon accounts for the proportion of fat that will not survive. Survival rates of the transferred fat vary between 40% and 70%, and a second session is sometimes required to achieve the desired result. Results in surviving fat are considered permanent, though the face continues to age and further volume loss may occur over time. Cost ranges from approximately £2,000 to £5,000 in the UK and equivalent ranges in other markets, depending on the extent of treatment and whether it is combined with other procedures.

Limitations

Fat grafting involves surgical risk, anaesthesia, and a meaningful recovery period that injectable treatments do not. The unpredictability of fat survival makes precise correction more difficult than with synthetic fillers, and overcorrection or irregularities in fat distribution can be difficult to revise. It is not appropriate for patients with mild concerns, and the cost and recovery commitment mean it is typically considered only when other options have been exhausted or when significant, permanent volume restoration is the goal.

Side-by-Side Comparison

Considerations for South Asian Skin

South Asian skin sits predominantly at Fitzpatrick IV to V on the phototype scale, which has several implications for undereye treatment that are worth understanding before choosing a procedure.

Pigmented dark circles are significantly more prevalent in melanin-rich skin types. This is relevant because none of the four procedures above address pigmented dark circles, which are caused by melanin deposition in the dermis rather than by volume loss or vascular visibility. Patients with Fitzpatrick IV to V skin who undergo tear trough filler for dark circles and see no improvement often have pigmented rather than structural dark circles, and the procedure was therefore addressing the wrong cause.

Post-inflammatory hyperpigmentation is also a significant consideration. Any procedure that causes bruising, inflammation, or skin trauma in this area can trigger post-inflammatory darkening in melanin-rich skin, which can persist for weeks to months. This does not mean these procedures are contraindicated for South Asian skin, but it does mean that practitioner experience with darker skin types, appropriate aftercare, and barrier maintenance are more important considerations than they might be for lighter phototypes.

The tear trough anatomy also presents differently in South Asian patients on average, with a tendency toward earlier and more pronounced pigmentation in the periorbital area due to a combination of genetic predisposition, thinner skin in the region, and higher rates of seasonal allergies and eye rubbing in populations from the Indian subcontinent. A thorough consultation that distinguishes between the vascular, pigmented, and structural components of the concern is particularly important before selecting a treatment pathway.

The Role of Skincare in the Undereye Area

Skincare cannot replicate what procedures achieve in terms of volume restoration or structural correction. What it can do is address the skin quality component of undereye concerns, slow the rate of further collagen and elastin loss, and maintain the results of any procedure that has already been performed.

The undereye area has specific requirements that differ from the rest of the face. It needs ingredients that support barrier function without occluding the delicate skin, actives that stimulate collagen and elastin synthesis without causing irritation in a thin-skinned area, and hydration that counteracts the transepidermal water loss that makes fine lines and creepiness more visible. It does not tolerate high-concentration exfoliating acids, strong retinoids, or anything that causes inflammation or disruption to an already fragile barrier.

Peptides are among the most evidence-supported topical ingredients for periorbital skin. Signal peptides such as argireline and matrixyl stimulate fibroblast activity and collagen synthesis in a manner similar in principle to the growth factors delivered by PRF, but through topical application rather than injection. Carrier peptides deliver trace minerals that support enzymatic processes involved in collagen production. The effect is gradual and incremental, but consistent use over several months produces measurable improvement in skin thickness and elasticity.

Barrier support is equally important. A compromised barrier in the undereye area accelerates collagen degradation, increases sensitivity to environmental triggers, and reduces the skin's capacity to retain the moisture that keeps fine lines from becoming visible. Ceramides, fatty acids, and humectants work together to maintain the structural integrity of the barrier without placing strain on thin, reactive skin.

For those who have had PRF, EZ Gel, fillers, or fat grafting, a barrier-focused skincare routine in the weeks surrounding and following the procedure supports recovery, reduces the risk of post-inflammatory pigmentation, and extends the longevity of results by maintaining the skin's own structural capacity between treatment cycles.