Under Eye (Tear Trough) Fillers in Singapore – Restore Bright, Youthful Eyes Without Surgery

Understanding the Tear Trough Anatomy

The tear trough refers to the concave depression that extends from the inner corner of the eye (medial canthus) downward and outward toward the mid-cheek.

In youthful faces, this transition between the lower eyelid and cheek is smooth and convex.

However, several structural changes contribute to a deepening of the tear trough¹ over time:

• Bone Resorption: The infraorbital rim (cheekbone) recedes with age, reducing skeletal support beneath the eye.
• Fat Pad Descent: The malar and deep medial cheek fat pads shift downward due to gravity and volume loss.
• Ligamentous Laxity:

• • The Orbicularis Retaining Ligament (ORL) loses tension, leading to separation between the lower eyelid and cheek.
  • The Zygomatico Cutaneous Ligament slackens, exacerbating midface sagging.
• Skin Thinning: Periorbital skin (~0.5 mm thick) becomes even thinner with age, making underlying vessels more visible and shadows more pronounced.

As these changes accumulate, patients experience:

• Hollowing under the eyes
• Shadow formation contributing to dark circles
• Tired, aged, or unhealthy facial expressions even when well-rested

Note: Tear trough deformities are often structural, not simply pigmentation issues.

Even younger patients with genetically recessed infraorbital rims may present with prominent under-eye hollows.

What Fillers Don’t Correct (But We Can Help With)

Tear trough fillers primarily target volume-related and structural concerns. They may not be suitable for:

• Pigmentation-related dark circles (due to melanin): Best treated with pigment-specific lasers (e.g., Alexandrite Pico Pro Laser)
• Vascular blueish tint (from visible veins): May see partial improvement with filler, but additional treatments like laser or PRP may be needed
  
• Puffy under-eyes caused by fat herniation: These are better addressed surgically

How Diagnosis Works

During your consultation, our MOH-accredited doctor will assess:

• Your anatomical structure (including bone loss, ligament laxity, fat pad descent)
  
• Whether filler alone or a multi-modal plan (e.g., filler + laser) will give you the best outcome

Cross-Linked Hyaluronic Acid (HA) Fillers: Immediate Hydration and Volume

Hyaluronic Acid (HA) is a naturally occurring glycosaminoglycan found throughout connective tissues.

In its native form, HA is rapidly degraded in the body.

To make HA suitable for long-lasting dermal fillers, the molecules are chemically stabilised through 1,4-butanediol diglycidyl ether (BDDE) cross-linking, a method that enhances both durability and cohesiveness² ³.

When choosing the right filler for tear troughs, we consider scientific properties such as:

• HA concentration for hydration and longevity
• Elastic modulus (G’) and tan delta for how firm or soft the filler feels
• Hydrophilicity to avoid unwanted swelling
• Cohesivity for smooth, natural blending with under-eye tissue

Key Benefits of Cross-Linked HA in Tear Troughs:

• Immediate volumisation with visible hollow reduction
• Hydration enhancement of the under-eye skin
• High reversibility with hyaluronidase (enzymatic correction possible if needed)
• Predictable integration with minimal lumpiness when injected correctly

Injection Planes & Cannula Technique

Safety and precision are central to filler placement at AURA Clinic. To minimise risk and ensure natural outcomes, our doctors use one of two anatomical planes:

• Supraperiosteal plane: Just above the bone for foundational structural support
• Sub-orbicularis oculi plane: Deep to the muscle for smooth contouring

All treatments are performed using:

• Blunt-tip microcannulas: For reduced trauma and vascular safety
• Fine gauge needles: For precise adjustments where needed

Correct plane selection reduces risks such as the Tyndall effect (a bluish tint from superficial filler) and vascular occlusion. Every patient’s anatomy is carefully mapped prior to injection.

Will I Look Puffy or Unnatural After Tear Trough Fillers?

No, not when treated by experienced medical professionals.

At AURA Clinic, we use low-hydrophilicity HA fillers with carefully selected rheological properties ensuring minimal water attraction and natural tissue integration.

By injecting conservatively and placing filler in the correct anatomical plane (supraperiosteal or sub-orbicularis), we achieve a subtle lift without overcorrection.

Our goal is not to dramatically change your appearance — but to restore the fresh, rested look you naturally had years ago.

Collagen-Stimulating Fillers: Long-Term Rebuilding of Skin Structure

In cases where skin laxity and thinning are more prominent, collagen-stimulating fillers offer an advanced approach by regenerating the skin’s own structural matrix rather than merely replacing volume.

These biostimulatory agents, typically made of poly-L-lactic acid (PLLA) or polycaprolactone (PCL) microparticles, work by activating your body’s own fibroblasts to regenerate collagen (Types I & III), leading to measurable skin thickening over time.

1. Macrophage activation (recognition of the particles)
2. Fibroblast is recruited and activated
3. Collagen Type I and III synthesis, rebuilding dermal thickness over several months that leads to:

• Thicker, firmer skin
• Improved under-eye support
• Smoother texture and resilience

Clinical studies have shown that collagen-stimulating fillers lead to measurable increases in dermal density and improved tissue resilience⁴.

Important Consideration: [call out/ highlight]

Because collagen stimulators induce biological change rather than simply occupying space, they are not reversible like HA fillers.

Careful dilution protocols and conservative dosing are used at AURA Clinic to ensure controlled, predictable outcomes.

Can Tear Trough Fillers Treat All Types of Dark Circles?

Not always.

There are three main causes of dark circles:

• Volume loss and hollowing: Correctable with fillers
• Pigmentation (melanin accumulation): Best treated with pigment lasers 
• Vascular congestion (bluish hue): May partially improve with fillers but sometimes requires complementary treatments

During consultation, our doctors will assess the dominant cause of your dark circles and recommend a tailored strategy — which may include tear trough fillers, laser therapy, or a combination.

How Long Will the Results Last?

Result longevity depends on the filler material used, individual metabolism, and lifestyle factors:

• Cross-linked Hyaluronic Acid Fillers: 9 to 12 months
• Collagen-Stimulating Fillers: 18 to 24 months, with gradual natural enhancement as new collagen forms [Chang, 2024 / Angelo-Khattar M, 2022]

Patients who maintain good skincare, sun protection, and general health typically enjoy longer-lasting results.

Choosing the Right Filler for Your Tear Troughs

The decision between HA fillers and collagen-stimulating fillers depends on a comprehensive evaluation of:

• Skin thickness and elasticity

• Depth and contour of the tear trough
• Presence of midface volume loss
• Patient’s age, lifestyle, and treatment expectations

In many cases, a hybrid strategy yields the best results:

HA fillers correct immediate hollowing, while collagen-stimulating fillers enhance long-term dermal resilience.

Every treatment plan at AURA Clinic is fully personalised and discussed in detail with you during consultation to ensure both safety and aesthetic precision.

At AURA Clinic, your doctor will assess your under-eye structure and skin quality in detail to recommend the most suitable filler, ensuring natural, long-lasting results with minimal risk.

Tip: [call out/ highlight]

In many cases, a hybrid approach works best — using HA for immediate improvement and collagen-stimulators for long-term skin quality. Your plan at AURA Clinic is always tailored to your anatomy and aesthetic goals.

In-Depth Understanding of Periorbital Anatomy

The under-eye region involves a complex interplay of critical anatomical structures:

• Thin skin (~0.5 mm): among the thinnest on the body
• Infraorbital artery and vein: Vascular branches are highly susceptible to injury if improperly injected
• Angular artery: Located near the medial canthus (inner corner of the eye), a danger zone requiring absolute precision
• Orbicularis retaining ligament (ORL) and zygomatico cutaneous ligament: Structures that create natural compartmentalisation between the eyelid and cheek (Wong & Hsieh, 2012)
• Loose connective tissue and superficial fat pads: Easily displaced by incorrect filler placement, leading to puffiness or irregularities

Our doctors are trained to identify and avoid high-risk anatomical zones, reducing the risk of:

• Bruising (ecchymosis)
• Intravascular injection (rare but serious)
• Tyndall effect (bluish discolouration from superficial filler placement)
• Post-treatment oedema (swelling from misplaced filler)

Safe Injection Planes:

• Supraperiosteal plane (on bone): Provides strong, stable support with minimal interference to superficial vessels.
• Sub-orbicularis oculi plane: Allows gentle contour smoothing while protecting the superficial skin from filler visibility.

Cannula Insertion Angle:

Blunt-tip cannulas are inserted at an angle of less than 30 degrees to the skin surface, an important technique to navigate anatomical planes safely⁵.

Careful Selection of Filler Materials for the Tear Trough Area

Choosing the correct filler is as crucial as the injection technique.

For the tear trough, our doctors select HA fillers with the following scientifically validated properties:

• G’ Prime (Elastic Modulus): 200–400 Pa, offering soft yet supportive tissue integration
• HA Concentration: 15–23 mg/mL to balance hydration with structural longevity
• Cohesivity: High cohesivity fillers that resist migration in dynamic areas
• Hydrophilicity: Moderate to low, reducing the risk of persistent swelling

These rheological characteristics ensure that the filler behaves like natural soft tissue, seamlessly integrating into the under-eye region without creating lumps, puffiness, or textural irregularities.

Emergency Protocols and Reversibility Measures

Even though severe complications are exceedingly rare in skilled hands, AURA Clinic maintains strict safety standards:

Immediate Readiness for Hyaluronidase Administration:

• Enzyme doses ranging from 10–30 units per 0.1 mL of HA filler are prepared and available on-site for emergency reversal if needed (DeLorenzi, 2014).

Vascular Monitoring:

• Capillary refill testing and real-time skin blanching assessments are performed intra-procedurally to detect early signs of vascular compromise.

Clinical Emergency Kits:

• Stocked with vasodilators, anticoagulants, and corticosteroids, following best-practice vascular occlusion management guidelines (Goldberg et al., 2021).

These measures ensure that even rare adverse events are managed promptly and effectively — an essential part of offering safe aesthetic treatments in high-risk anatomical zones.

What Happens If I Don’t Like the Result?

One of the advantages of hyaluronic acid fillers is their reversibility.

If necessary, we can safely dissolve the filler using hyaluronidase, an enzyme that breaks down HA almost immediately.

At AURA Clinic, we rarely need to use hyaluronidase due to our conservative injection philosophy — but it remains an important safety net for your peace of mind.

Before Your Treatment — Comprehensive Consultation and Planning

Your journey begins with a detailed one-on-one consultation with an MOH-accredited doctor.

During this session, we conduct a comprehensive assessment, including:

• Facial anatomy analysis: Evaluating bone structure, ligament integrity, and fat pad positioning (Wong & Hsieh, 2012).
• Skin quality assessment: Measuring skin thickness, elasticity, and hydration levels.
• Photographic documentation: Clinical photos are taken to plan treatment approach and track outcomes.
• Medical history screening: Identifying any contraindications such as bleeding disorders, autoimmune conditions, or prior adverse filler events (Sundaram & Cassuto, 2013).

You will also receive a fully personalised treatment plan — including filler type, injection technique, expected outcomes, and possible adjunctive treatments (e.g., skin boosters or Pico Laser if pigmentation contributes to dark circles).

During Your Treatment — Precision Injection and Patient Comfort

On the day of the procedure, the treatment steps are carefully choreographed for safety and comfort:

1. Topical Anaesthesia Application:
   
   A lidocaine-based numbing cream is applied for 20–30 minutes to minimise discomfort.
2. Treatment Zone Marking:
   
   Landmarks including the infraorbital foramen, angular artery track, and tear trough groove are precisely mapped to guide cannula or needle insertion (Liew et al., 2020).
3. Sterile Technique Protocol:
   
   The injection area is disinfected following clinical-grade standards to minimise infection risk.
4. Microcannula or Needle Injection:
   
   Depending on the planned technique:
5. • Blunt-tip cannula (25G–27G) is used to deposit filler in the supraperiosteal or sub-orbicularis plane.
   • Fine 30G needle may be used for precise spot corrections.
6. Real-Time Aesthetic Refinement:
   
   Fillers are placed slowly using linear threading or retrograde injection methods, with continuous visual and tactile monitoring for symmetry, avoidance of overcorrection, and vascular safety checks (DeLorenzi, 2014).
7. Immediate Post-Injection Monitoring:
   
   We check capillary refill times and skin coloration before you leave the clinic to confirm normal vascular flow (Goldberg et al., 2021).

The entire treatment typically lasts 30 to 45 minutes.

Is the Procedure Painful?

Discomfort is very minimal for most patients.

We apply a potent topical anaesthetic cream prior to treatment, and the fillers themselves often contain lidocaine for further numbing during the procedure.

Additionally, using blunt-tip microcannulas reduces tissue trauma compared to needles, making the experience much gentler.

Most patients describe the sensation as a slight pressure or mild pinching.

After Your Treatment — Healing, Results, and Aftercare

Mild post-procedure effects are common, including:

• Swelling: Minimal to mild, peaking within 24–48 hours and typically resolving by Day 3–5.
• Bruising: Occurs in ~10–20% of cases, often minor and easily concealed after 48 hours (Wilde et al., 2023).
• Tenderness: Localised around the entry site; generally subsides within 2–3 days.

Post-Treatment Care Instructions:

• Avoid alcohol, aspirin, or vigorous exercise for 24 hours.
• No facials, massages, or cosmetic treatments around the eye for 1 week.
• Apply cold compresses gently if instructed by your doctor.

Result Longevity:

• Hyaluronic Acid Fillers: Typically last 9–12 months depending on individual metabolism and lifestyle factors.
• Collagen-Stimulating Fillers: Results progressively improve and may last 18–24 months.

Maintenance Plan:

Our doctors may recommend periodic touch-ups or complementary skin treatments to maintain optimal under-eye rejuvenation without overcorrection.

Understanding the Real Risks of Injectable Treatments: A Medical Procedure, Not a Quick Beauty Fix

Today, injectable treatments like dermal fillers and skin boosters are often marketed as simple enhancements, almost on par with getting a facial or a haircut.

However, despite their minimal invasiveness, it’s crucial to recognise that these are medical procedures, carrying real — and sometimes irreversible — risks.

When administered by qualified, properly trained doctors in sterile environments, complications are rare.

But when safeguards are overlooked, whether through rushed consultations, unverified practitioners, or non-sterile conditions, the risks rise sharply.

Severe complications, while rare, can include:

• Miscommunication about treatment type: A lack of clarity between skin boosters and fillers
• Compromised technique: Potential use of improper injection methods
• Missed “Golden Hour” intervention: A crucial delay in recognising vascular complications, severely diminishing the chance of preventing long-term damage

While South Korea remains internationally celebrated for its aesthetic industry and technological advancements, some often-overlooked risks of beauty tourism include:

• In pursuit of lower prices or quicker results, patients may unknowingly compromise their safety
• Immediate medical support post-procedure is not always guaranteed when treatment is sought abroad

Unfortunately, these risks are often undercommunicated in beauty-focused marketing, leading patients to believe that filler treatments are risk-free or easily reversible. In reality, patient safety depends heavily on the injector’s anatomical knowledge, product selection, and preparedness to manage complications immediately and effectively.

Protecting Yourself: Non-Negotiables for Safer Aesthetic Treatments

Before proceeding with any injectable, it’s crucial to assess not just the price or popularity of the clinic, but the medical safeguards in place.

Ensure a Doctor-Led Practice

• Confirm your injector is a licensed doctor, preferably with specific accreditation in aesthetic medicine.
• Always have your consultation and procedure performed by the same professional.

Prioritise Medical Readiness Over Price Tags

• High-quality fillers, safe technique, and sterile environments come with costs.
• Deep discounts often mean compromises — whether in the product used, staff qualifications, or the absence of proper aftercare protocols.

Ask About Emergency Preparedness

• A credible clinic should have emergency medications (like hyaluronidase) ready on-site, with staff trained to recognise and immediately treat vascular occlusions.
  

Resist Same-Day, High-Pressure Offers

• Comprehensive facial assessment, detailed treatment planning, and time to review your consent documents are minimum standards.
• Clinics pushing walk-in promotions or rushed “lunchbreak” filler treatments may be putting your long-term health at risk.

How to Protect Yourself

Heartbreaking stories can potentially be prevented with:

• Proper injector training by a licensed medical doctor, not a beautician or unverified practitioner
• Immediate recognition of vascular compromise
• Understanding emergency protocols, including the availability of hyaluronidase for filler reversal within the “golden hour” window

Even in countries renowned for aesthetic expertise, patient education, injector training, and emergency preparedness are not guaranteed.

At AURA Clinic, our first priority is your health and safety.