Nasolabial folds, medically termed nasolabial sulcus, are symmetrical grooves extending from the sides of the nose to the outer corners of the mouth. They are among the earliest deep wrinkles to appear on the face — most people notice them becoming visible after 25, deepening noticeably after 30, and forming deep grooves after 35. Nasolabial folds age the appearance because they shift the visual center of the mid-to-lower face — in youth, full cheeks place the center higher (apple cheek area), while deepening folds create a sagging impression and shift the center downward, resulting in a tired, aged look. The causes are multidimensional: (1) Skeletal structure — those with maxillary retrusion or insufficient zygomatic development have congenitally deeper nasolabial folds, as the midface lacks bony support causing soft tissue to descend and accumulate at the nasolabial groove. (2) Fat pad descent — malar and nasolabial fat pads descend with age under gravity, creating a contrast between accumulated bulges and sunken grooves at the nasolabial line. (3) Ligament tethering — zygomatic cutaneous and maxillary ligaments are fixed fibrous structures that act as anchor points, tethering the skin to create depressions when surrounding tissue descends. (4) Muscle dynamics — repetitive contraction of the risorius and zygomaticus major muscles deepens dynamic creases. (5) Loss of skin elasticity — dermal collagen and elastin depletion prevents skin from rebounding. Rappoel Dermatology near Gangnam Station, Seoul, uses premium cross-linked hyaluronic acid injection therapy to precisely fill nasolabial depressions and restore midfacial volume, providing an instantly visible non-surgical solution.
Technical Principles of Hyaluronic Acid Filler for Nasolabial Folds
- Volumetric filling effect of cross-linked HA: Hyaluronic acid (HA) is a polysaccharide naturally present in the human dermis — one HA molecule can bind 500 times its weight in water. Cross-linking technology transforms linear HA molecules into a three-dimensional gel network — when injected into the nasolabial dermis, it creates volumetric support that instantly lifts the sunken groove. Rappoel uses medium-to-large molecular cross-linked HA (such as Restylane Lyft, Juvederm Voluma), balancing support strength and pliability
- Deep supraperiosteal injection for skeletal support: Experienced physicians do not merely fill the groove surface — they perform deep support injections at the supraperiosteal layer above the nasal base and medial zygoma, first reconstructing the skeletal volume of the midface, then performing precise groove filling in the superficial dermis. This dual-layer approach of deep support plus superficial refinement creates more natural and lasting results
- Supporting ligament release technique: For nasolabial folds with significant ligament tethering, the physician first releases the zygomatic cutaneous ligament using a cannula before HA injection — freeing the skin depression held by the ligament, then filling HA into the space created by release for more complete correction
- Sustained hydration improvement: Post-injection HA continues absorbing water and expanding over 2-4 weeks — the initial filling effect enhances by approximately 10-15%, with concurrent improvement in skin texture and elasticity
- Reversibility safety guarantee: HA is the only reversible filler material — if results are unsatisfactory or complications arise, injecting hyaluronidase can completely dissolve the HA within 24-48 hours. This provides a safety guarantee unavailable with other filler materials
Filling Strategies for Different Nasolabial Fold Types
- Skeletal type (congenital): Maxillary retrusion causes midface flatness and congenitally deep nasolabial grooves. Strategy: deep supraperiosteal large-molecule HA for midfacial volume reconstruction (0.5-1ml per side), then superficial groove refinement (0.3-0.5ml per side). Significant improvement but may require 2-3 cumulative sessions
- Aging type (acquired): Fat pad descent and skin laxity after age 30. Strategy: release ligament tethering first, then fill the deep nasal base (0.5-0.8ml per side), then superficial groove refinement (0.3-0.5ml per side). May need combination with midface thread lifting to elevate descended fat pads
- Mixed type: Skeletal deficiency plus aging descent combined. Strategy: staged treatment — first session for deep volume reconstruction (1ml/side), evaluate after 4 weeks, then superficial refinement. Total usage may reach 2-3ml per side
- Dynamic type: Folds are very deep when smiling but shallow at rest. Strategy: HA filling has limited effect — because dynamic creases are primarily caused by muscle contraction. Recommend combination with micro-Botox injection at risorius insertion points to reduce dynamic folding
Rappoel Nasolabial Fold HA Filler Treatment Protocol
- Facial assessment and plan design (15 min): Static and dynamic evaluation of fold depth and etiology → assess midfacial volume and skeletal base → determine fold type (skeletal/aging/mixed/dynamic) → establish filling plan (injection depth, volume, combination needs)
- Disinfection and anesthesia (10 min): Povidone-iodine facial preparation → apply lidocaine topical anesthetic to nasolabial area → wait 10 minutes → many premium HA products contain integrated lidocaine for near-painless injection
- Deep support injection (5-8 min): 22G cannula entry from lateral nasal ala → cannula advances safely in supraperiosteal plane to medial zygoma → retrograde injection of large-molecule HA for deep support → 0.5-1ml per side
- Superficial precision refinement (3-5 min): 27G or 30G fine needle for linear retrograde injection in the superficial nasolabial dermis → precise filling of groove depression → 0.3-0.5ml per side → physician uses gentle technique ensuring uniform filling without lumps
- Shaping and immediate assessment (5 min): Gentle massage to ensure uniform HA distribution → patient performs smiling and talking expressions to confirm natural dynamic results → immediate before/after photography → post-care instructions provided
Nasolabial fold HA filler is one of Rappoel’s most popular instant rejuvenation procedures — 15-minute treatment shows immediate fold reduction, restored midfacial fullness, and 3-5 years of perceived youthfulness. Results last 12-18 months. Located 3 minutes from Gangnam Station Exit 10, with seamless English and Chinese consultation.
Frequently Asked Questions
How long do HA fillers last for nasolabial folds? Do I need regular touch-ups?
The average duration of HA in the nasolabial area is 12-18 months. Factors affecting longevity: (1) HA type — high cross-linking large-molecule products (e.g., Voluma, Lyft) last longer (15-18 months); medium-molecule products (e.g., Restylane, Juvederm Ultra) last 10-12 months. (2) Injection depth — deep supraperiosteal injection lasts longer than superficial dermal injection (deep metabolism is slower). (3) Individual metabolic rate — faster metabolism means faster HA degradation. (4) Dynamic activity — frequent smiling and talking in the nasolabial area accelerates HA metabolism. Rappoel recommends: 12-month follow-up after initial treatment; if results have diminished by more than 50%, a touch-up can be done (typically 1/2-2/3 of initial volume). Regular touch-ups can extend overall duration — because each treatment stimulates slight local collagen proliferation.
Will HA filler for nasolabial folds make my face look plastic and unnatural?
The root cause of a plastic look is injection technique and volume, not HA itself. Keys to avoiding unnatural results: (1) Volume control — 0.5-1ml per side is the safe range; exceeding 1.5ml/side risks over-plumping. (2) Injection depth — Rappoel uses a dual-layer approach of deep support plus superficial refinement, not just surface groove filling (surface-only filling can look like two sausages). (3) Dynamic assessment — the physician has the patient repeatedly smile and talk during injection to ensure natural dynamic results. (4) Not over-correcting — nasolabial folds are a natural facial structure; complete elimination looks unnatural. Rappoel’s goal is to reduce deep grooves to shallow lines, maintaining natural youthfulness. Choosing an experienced physician matters more than choosing the HA brand — the same product produces vastly different results in different hands.
What is the relationship between nasolabial fold filling and cheek filler? Which should be done first?
Nasolabial folds and cheeks (midface) are anatomically connected — one root cause of deepening folds is descent of the apple cheek area (malar fat pad). So nasolabial filling and midface/cheek filling are often integrated: (1) If cheeks are noticeably flat — recommend midface deep volume filling first (large-molecule HA 1-2ml/side) to reconstruct skeletal support; folds may naturally reduce 30-40%, then supplement with groove filling. (2) If cheeks are adequate but folds are deep — direct groove filling suffices. (3) If cheek descent is severe — HA filling has limited effect; thread lifting may be needed first to reposition descended fat pads, then fill residual fold depressions. Rappoel’s facial assessment evaluates midface and nasolabial folds simultaneously — developing an integrated plan rather than focusing only on the groove. Many clients find that cheek filling naturally lightens their nasolabial folds without separate treatment.
What are the risks and side effects of nasolabial fold HA filler?
The nasolabial area is relatively safe anatomically (away from high-risk areas like the ophthalmic and supratrochlear arteries), but note: (1) Common short-term reactions — post-injection redness (1-2 days), mild swelling (2-3 days), bruising (5-7 days, significantly reduced with cannula use). These don’t affect daily life. (2) Vascular complications — while the nasolabial area is not high-risk, the lateral nasal ala has facial artery branches — using a cannula reduces embolism risk to extremely low levels. Rappoel uses cannulas exclusively for nasolabial filling. (3) Tyndall effect — if superficial injection is too shallow, HA appears bluish-gray under the skin — can be dissolved with hyaluronidase if detected. (4) Asymmetry — caused by inconsistent bilateral volume or depth — experienced physicians prevent this through pre-treatment symmetry assessment and intra-operative bilateral comparison. Rappoel’s safety measures: cannula-only technique, aspiration before injection to confirm no blood, hyaluronidase on standby. Nasolabial filling is among the safest areas for facial filler injection.
Can I get HA filler for nasolabial folds after having thread lifting? Do they conflict?
Thread lifting and HA filling do not conflict and can be combined, but timing matters: (1) Thread lift first, then filler (recommended) — after thread lifting repositions the descended midface fat pads, nasolabial folds may naturally reduce 30-50%, with residual groove depressions filled with HA. Filling 2-4 weeks after thread lifting is ideal — waiting for thread-lift tissue swelling to subside before assessing actual residual fold depth. (2) Filler first, then thread lift — if folds are very deep requiring large HA volumes, filling can restore volume first, but subsequent thread lifting needles passing through HA-filled areas may displace the HA. This sequence is not recommended. (3) Same-day — thread lifting can be done first, immediately assessing fold reduction, then deciding whether HA supplementation is needed on the spot. Rappoel frequently uses thread lift + HA combination — thread lifting addresses structural descent, HA addresses volume loss, complementing each other for optimal rejuvenation. The combined effect typically exceeds either treatment alone.
Nasolabial folds making you look tired and aged? Rappoel HA filler — 15 minutes to instantly smooth deep smile lines!
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