A thread lift in Singapore places absorbable PDO, PCL or PLLA threads under the skin through small entry points under local anaesthetic. Barbed threads hold a mildly descended jowl, cheek or brow in a repositioned place while collagen forms around them. Threads do not add volume or remove skin, so suitability is decided at assessment.
- What a thread lift is
- Key Facts
- PDO, PCL and PLLA: what the materials mean
- Mono, screw and cog threads
- Who a thread lift suits
- The assessment
- What happens during the procedure
- Recovery
- Risks stated plainly
- Threads, energy lifting and surgery: different mechanisms
- Nose thread lift: a separate application
- What determines the cost
- How Dr Sin Yong approaches thread lifting
- Thread lift vs filler: which one does the face need?
What a thread lift is
A thread lift places absorbable surgical sutures into the subcutaneous layer of the face, through a blunt cannula or fine needle, under local anaesthetic. Lifting threads carry small cogs or barbs cut or moulded along their length. Once a thread is in position and the tissue is drawn back along its vector, the barbs engage the fibrous septae of the subcutaneous fat and hold the tissue where it has been placed.
Two things then happen. The first is mechanical: the barbs hold descended tissue — a jowl, the lower cheek, the tail of the brow — closer to where it sat before it slid. The second is biological: the body lays down a fibrous capsule of collagen around the thread, which persists for a period after the polymer is broken down by hydrolysis and contributes some support along that line.
That is the whole mechanism. A thread does not heat tissue, add volume or remove skin. Dr Sin Yong performs thread lifting as the Bliss Lift protocol, with cog and smooth threads mapped individually at consultation.
Key Facts
- Classification
- Minimally invasive; absorbable suture placed through puncture entry points under local anaesthetic. No incision, no general anaesthesia, no skin removed.
- Materials
- PDO (polydioxanone), PCL (polycaprolactone), PLLA (poly-L-lactic acid). All three are absorbable polymers.
- Resorption
- By hydrolysis in the tissue, not by enzymes. Relative profile: PDO fastest, PLLA intermediate, PCL slowest.
- Thread types
- Mono (smooth, no lift); screw or tornado (wound filament); cog or barbed (cut or moulded barbs — the one type that repositions tissue).
- Gauge
- Cog threads are commonly delivered on a 19–21 G cannula or needle; mono threads on finer needles.
- Tissue plane
- Subcutaneous fat, superficial to the SMAS (superficial musculo-aponeurotic system). Threads do not enter the SMAS.
- Mechanism
- Mechanical repositioning by barb engagement, plus a fibrous collagen capsule laid down around the thread as it resorbs.
- Anaesthesia
- Local infiltration along entry points and thread paths; the patient is awake and sitting for marking.

PDO, PCL and PLLA: what the materials mean
Three absorbable polymers are in common use. PDO (polydioxanone) is the material of a standard absorbable surgical suture and the most widely used. PCL (polycaprolactone) is a more slowly hydrolysed polyester. PLLA (poly-L-lactic acid) sits between the two and is also familiar from collagen biostimulator injectables.
All three are broken down by hydrolysis — water in the tissue gradually cleaves the polymer chain — and the by-products are metabolised. What differs is the rate: PDO loses tensile strength and resorbs fastest, PLLA more slowly, PCL slowest of the three. The slower the polymer resorbs, the longer it remains as a scaffold for collagen deposition. Whether that is an advantage depends on the zone, the skin thickness and how the plan is staged — an assessment question, not a rule.
Mono, screw and cog threads
Material describes what a thread is made of; type describes its shape and what it can do.
- Mono threads are smooth single filaments placed in a mesh pattern. They have no barbs and no lifting capacity; their purpose is the fibrotic response along the thread, directed at skin firmness.
- Screw or tornado threads are filaments wound around the carrier needle. They occupy slightly more space than a mono thread and are used where a little fullness along a line is wanted.
- Cog or barbed threads carry directional barbs, cut or moulded, and are the one type that repositions tissue. These are what people mean by “thread lift”.
Cog threads are typically delivered on a 19–21 G cannula or needle; mono threads ride on finer needles.
Who a thread lift suits
The procedure works where there is tissue to grip and somewhere to put it: mild-to-moderate descent of the jowls, mid-face or lateral brow with facial volume reasonably preserved, and skin thick enough that the thread and its barbs sit beneath it without being seen or felt. Early jowling — the soft pocket at the corner of the jawline that forms before the neck itself has loosened — is the most common reason people ask about threads; the assessment behind that decision is on the jowls and lower-face sagging page.
Who it does not suit
- Heavy skin excess. A thread repositions tissue; it does not remove skin. Moving redundant skin produces bunching rather than a lift.
- Very thin skin. A cog thread needs cover. In thin, sun-damaged or very lean faces the thread can be visible or palpable.
- Active acne, infection or inflammation along the planned vector. An infected thread tract is a serious complication, so the procedure is postponed.
- Keloid or hypertrophic scar tendency, because each entry point is a small wound.
- Bleeding disorders or anticoagulant medication, reviewed individually; sometimes the plan is adjusted, sometimes threads are not appropriate.
- Volume loss mistaken for sagging. A hollow mid-face is a volume problem; lifting it with a thread moves the hollow rather than filling it.
Where the assessment points away from threads, the alternatives are usually energy-based, as set out on the sagging face treatment page.
“A thread repositions tissue it can grip. It does not replace volume that is gone, and it does not remove skin that is in excess.”
Dr Sin YongOn what a cog thread can and cannot do
The assessment
A thread lift is planned on the face in front of the doctor, not from a template. Dr Sin Yong examines the face at rest and in animation; palpates the jowl and cheek to judge how mobile the tissue is and how much of it is fat rather than skin; checks skin thickness over the intended vectors; and notes existing asymmetry, because a lift will not hide it and can make it more obvious if not planned around. Bleeding tendency, medications, previous filler or threads in the zone and scarring history are taken at the same visit.
The output is a thread plan — zones, number of threads, material and type, and the direction of each vector — and a decision on whether threads are the right tool at all, or whether the descent is better addressed by VF Lift or another energy protocol, with or without threads.
What happens during the procedure
Vectors and entry points are marked with the patient sitting upright, because tissue falls differently lying down. The entry points and the path of each thread are anaesthetised with local infiltration. Through a small puncture, the cannula or needle carrying the thread is passed along the marked vector in the subcutaneous plane, superficial to the SMAS; the thread is released, the carrier withdrawn, and the tissue drawn back so the barbs engage. Excess thread is trimmed flush at the entry point, and symmetry is checked before the final threads go in. The procedure is done awake; once the anaesthetic is in, most people describe pressure and pulling rather than pain.
Recovery
Recovery varies. Normal in the early period: swelling and some bruising along the vectors, tightness when opening the mouth wide or smiling, tenderness at the entry points, and small surface dimples or puckers where a barb has caught the skin superficially. Dimpling usually settles as the tissue relaxes; if it does not, it can be released at review. Minor early asymmetry is common because swelling is rarely symmetrical, and is reassessed rather than corrected on the day.
Wide mouth opening, vigorous facial massage, dental work and sleeping on the treated side are avoided in the early period so the barbs are not dislodged before the capsule has formed. What warrants an earlier review: increasing redness or warmth along a thread line, discharge from an entry point, a thread end becoming visible at the skin, or persistent numbness or altered sensation.
Risks stated plainly
- Visible or palpable thread — more likely with thin skin or superficial placement.
- Extrusion — a thread end working out through the skin at the entry point; the exposed portion is trimmed or the thread removed.
- Infection along the thread tract, which may require thread removal and antibiotics.
- Dimpling or puckering that persists beyond the settling period.
- Nerve irritation — transient altered sensation or, rarely, weakness where a thread passes near a nerve branch; vector planning is directed at avoiding these.
- Asymmetry, bruising and, uncommonly, haematoma.
- Thread migration or loss of hold, more likely if the early precautions are not followed.
These are the recognised complications in the published thread-lift literature (see References). Most are managed by the doctor who placed the thread, which is one reason to keep the procedure and its review in the same hands.
Threads, energy lifting and surgery: different mechanisms
People searching for a thread lift in Singapore are usually also weighing HIFU, radiofrequency and a facelift. These are different mechanisms on different timelines, not a ranking. Threads act mechanically in the subcutaneous plane: tissue moves because it is held.
HIFU — high-intensity focused ultrasound, and its visualised form Ultherapy — creates discrete thermal coagulation points at set depths, typically 4.5 mm at the SMAS and 3.0 mm in the deep dermis. Nothing is moved on the day; the tissue contracts and remodels around those points on its own timeline.
Monopolar radiofrequency — Thermage at 6.78 MHz, or the Volnewmer platform that leads Dr Sin Yong’s VF Lift — heats the dermis and subcutaneous layer in bulk rather than at points, driving collagen contraction and new collagen formation through the heated volume.
A surgical facelift lifts and fixes the SMAS layer itself and removes the resulting skin excess. It is the one option here that removes skin, which is why it remains the answer for heavy laxity. Threads sit above the SMAS and remove nothing.
Because threads and energy work in different planes by different means, they are often planned together, with the sequence decided at consultation. A wider comparison is in the non-surgical facelift guide.
Nose thread lift: a separate application
The same PDO material is used in a nose thread lift, but the purpose is different: threads are placed along the dorsum and columella to define the bridge line and support tip projection, not to hold tissue against descent. The assessment, thread type and risks are specific to the nose, and it is planned as a separate procedure.
What determines the cost
Cost is set out at consultation, once the plan exists, because it depends on:
- the zones being treated — jowl, mid-face, brow or neck — and how many vectors each needs;
- the number, type and material of threads the assessment calls for;
- whether threads are used alone or combined with an energy protocol or volume restoration in the same plan;
- how the plan is staged, and the review it includes.
Consultations with Dr Sin Yong are by appointment at Orchard Road, Singapore.
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References
- Kalra R. Use of barbed threads in facial rejuvenation. Indian J Plast Surg. 2008 — PubMed.
- Suh DH, Jang HW, et al. Outcomes of polydioxanone knotless thread lifting for facial rejuvenation. Dermatol Surg. 2015 — PubMed.
- Karimi K, Reivitis A. Lifting the Lower Face With an Absorbable Polydioxanone (PDO) Thread. J Drugs Dermatol. 2017 — PubMed.
- Riopelle AM, Geisler AN, et al. Update on Absorbable Facial Thread Lifts. Dermatol Surg. 2025 — PubMed.
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All treatments performed personally by Dr Sin Yong at Orchard Road, Singapore.
WhatsApp +65 8023 7170| Option | What it does | What it cannot do | Typical recovery | Who it tends to suit |
|---|---|---|---|---|
| Cog thread lift (PDO, PCL or PLLA barbed threads) | Barbs engage the subcutaneous tissue and hold a descended jowl, lower cheek or brow in a repositioned place, with a collagen capsule forming around each thread | Add volume, remove skin or lift heavy laxity | Swelling, bruising and tightness along the vectors; wide mouth opening and sleeping on the treated side are avoided early on | Mild-to-moderate descent with reasonably preserved volume and skin thick enough to cover the thread |
| Mono threads | Smooth threads placed in a mesh pattern to prompt a fibrotic response directed at skin firmness | Reposition tissue, because they carry no barbs | Minor bruising and swelling at the entry points that settle | Skin firmness concerns rather than descent |
| VF Lift – Vertical Facelift (Volnewmer monopolar radiofrequency) | Heats the dermis and subcutaneous layer in bulk, driving collagen contraction and new collagen formation | Move tissue on the day, add volume or remove skin | Varies with settings; discussed before treatment | Laxity where an energy-based approach suits better than threads, or alongside threads |
| HIFU (high-intensity focused ultrasound) | Creates discrete thermal coagulation points at set depths in the SMAS and deep dermis, which contract and remodel over time | Reposition tissue on the day or remove skin | Varies; tenderness or swelling can occur and is discussed beforehand | Early laxity where tightening at depth is the aim |
| Volume restoration (dermal filler or collagen biostimulator) | Restores volume where hollowing or flattening, rather than descent, is the problem | Lift heavy descent or remove skin | Swelling or bruising at the injection points that settle | Volume loss that a thread would only move rather than fill |
| Surgical facelift (referred to a plastic surgery specialist) | Repositions and fixes the SMAS layer and removes the resulting excess skin | Restore lost volume or change skin quality on its own | Surgical recovery, guided by the operating team | Heavy skin excess and advanced descent |
How Dr Sin Yong approaches thread lifting
Dr Sin Yong performs thread lifting as the Bliss Lift protocol. Vectors are planned individually and drawn on the face with the patient seated upright: an anchor point, a direction, and the number and type of thread for each vector. Jowl vectors run from an anchor in front of the ear across the jowl toward the jawline, mid-face vectors run obliquely from a temporal anchor across the cheek, and short brow threads are placed from within the hairline.
Material is chosen per vector rather than per face. PDO cog threads are used for most jowl and mid-face vectors; PCL is chosen where tissue is heavier, where sustained support is planned, or where vectors are being re-laid after an earlier PDO lift has resorbed; PLLA is used less often. Cog threads are placed in the subcutaneous plane above the SMAS through a 19–21 G cannula or needle, and smooth mono threads are sometimes combined where skin firmness is part of the plan.
Thread lift vs filler: which one does the face need?
A thread lift and a filler answer different problems: threads reposition tissue that has descended, while filler replaces volume that has been lost. Choosing between them starts with deciding which of the two is actually happening in the face.
Descent shows as tissue that has slid: a jowl sitting below the jawline, a cheek fat pad that has moved down and inward, a brow tail that has dropped. If the tissue can be lifted back by hand and the face looks right in that position, a cog thread may be able to hold it there. Volume loss looks different: a flattened cheek, a hollow temple or tear trough, a chin that lacks projection. Lifting a hollow with a thread moves it rather than filling it, and adding filler to tissue that has descended adds weight to what is already low.
Many faces show both, which is why the two are often planned together, with the order decided at assessment. Reversibility differs too: hyaluronic acid filler can be dissolved with hyaluronidase, whereas absorbable threads resorb on their own timeline and cannot be dissolved on demand.
| Material | What it is | Relative resorption | Made as | Where it tends to be chosen |
|---|---|---|---|---|
| PDO (polydioxanone) | The polymer of standard absorbable surgical suture; firm, with limited stretch | Fastest of the three, so its mechanical hold tapers first while the collagen track remains | Mono, screw and cog threads across a range of gauges | Most jowl and mid-face vectors |
| PCL (polycaprolactone) | A more flexible, slowly hydrolysed polyester | Slowest of the three, so it remains as a scaffold for collagen for longer | Mono, screw and cog threads | Heavier tissue, vectors that need sustained support, or re-laying vectors after an earlier PDO lift has resorbed |
| PLLA (poly-L-lactic acid) | A polymer from the same family as injectable collagen biostimulators | Between PDO and PCL | Lifting and non-lifting threads, depending on the product | A particular zone that calls for its handling characteristics; used less often |
| Mono threads (any of the three) | Smooth single filaments with no barbs | Follows the material | Placed in a mesh pattern | Skin firmness rather than descent; they do not reposition tissue |
Frequently Asked Questions
PDO (polydioxanone) and PCL (polycaprolactone) are both absorbable polymers broken down by hydrolysis in the tissue. PDO is the same material as absorbable surgical suture and resorbs the fastest of the common thread materials; PCL resorbs the slowest, so it remains as a scaffold for collagen deposition for longer. Both can be made as mono, screw or cog threads. Which material suits a given zone is decided by skin thickness and the plan, not by the material alone.
A thread lift is classified as minimally invasive. Absorbable sutures are placed through small puncture entry points under local anaesthetic, without incisions, general anaesthesia or removal of skin. It is not a facelift: a surgical facelift repositions and fixes the SMAS layer and excises excess skin, whereas threads sit in the subcutaneous plane above the SMAS and remove nothing. The two address different degrees of descent.
The entry points and the path of each thread are infiltrated with local anaesthetic before any thread is placed, so the procedure itself is felt mainly as pressure and pulling. Afterwards, tightness on wide mouth opening, tenderness at the entry points and an awareness of the threads are expected while the tissue settles. Recovery varies between people and zones; persistent or increasing pain is a reason for review rather than something to wait out.
No. A thread repositions tissue it can grip; it cannot remove skin. Where descent is mild to moderate and skin quality is reasonable, threads can hold a jowl or cheek in a repositioned place. Where there is heavy skin excess, moving that skin with a thread produces bunching, and a surgical facelift, which excises the excess, is the appropriate discussion. The assessment decides which category a face falls into.
Yes, and they are often planned together because they work by different mechanisms in different planes. Threads hold tissue mechanically in the subcutaneous layer. HIFU creates thermal coagulation points at the SMAS and deep dermis; monopolar radiofrequency heats the dermis in bulk. Neither energy treatment moves tissue on the day, and no thread heats it. The order and spacing of combined treatments are decided at consultation for each face.
A dimple or pucker along a thread line means a barb has engaged the tissue close to the skin surface, or the tissue has been gathered slightly at that point. It is a recognised and usually temporary finding that settles as the surrounding tissue relaxes. A dimple that does not settle can be released by the doctor at review. It is not a sign the thread has failed, and it is different from the surface irregularity of a thread placed too superficially.
In the early period, yes. If a thread end extrudes at the entry point, or a tract becomes infected, the thread can be located and withdrawn or trimmed. Because the materials are absorbable, a thread that is simply no longer wanted is left to resorb by hydrolysis rather than removed. Removal later becomes harder as the fibrous capsule forms around the thread, which is one reason concerns should be raised at review rather than deferred.
No. A cog thread moves tissue that already exists; it does not add any. A hollow mid-face, flattened cheek or deep tear trough is a volume problem, and lifting it with a thread moves the hollow rather than filling it. Screw threads occupy slightly more space than mono threads but are not a volume treatment. Where the assessment finds volume loss, volume restoration is discussed as a separate step, sometimes alongside threads.
It uses the same absorbable PDO material but is a different application. In a nose thread lift the threads are placed along the dorsum and columella to define the bridge line and support the tip, not to hold tissue against descent. The assessment, the thread type and the specific risks belong to the nose rather than the face, so it is planned and consented as a separate procedure.
Threads are not the right tool for heavy skin excess, for very thin skin where the thread would be visible or palpable, or for volume loss mistaken for sagging. They are postponed where there is active acne, infection or inflammation along the planned vector. A keloid tendency, a bleeding disorder or anticoagulant medication, and pregnancy are each assessed individually before a decision is made.
There is no fixed duration. The barbs hold tissue while the thread keeps its strength, and the collagen capsule laid down around it contributes some support after the polymer has been broken down. How long the effect remains depends on the material, with PDO resorbing fastest, PLLA more slowly and PCL slowest; on how much descent there was to begin with; on skin thickness; and on the fact that the face keeps ageing around the threads. Threads do not stop that process, so maintenance, and any combination with energy-based lifting, is planned from what review shows rather than on a calendar.
There is no set age. Suitability follows the tissue rather than the birthday: mild-to-moderate descent, reasonably preserved volume and skin thick enough to cover the thread. That pattern is common from the mid-thirties onwards, but some faces in their fifties suit threads and some younger faces are better served by volume restoration or energy-based treatment. Heavy skin excess at any age points toward a surgical discussion with a plastic surgery specialist.
Yes, often, because they address different problems: threads reposition descended tissue and filler replaces lost volume. Whether they are placed at the same visit or staged depends on the zones involved, the expected swelling and how the threads settle, and that order is decided at consultation. Previous filler in a zone where threads are planned is noted at assessment, since it affects how the vectors are laid.
It varies between people and zones. Swelling, bruising along the vectors and tightness on opening the mouth are common early on, so some people plan a few quieter days before social or work commitments while others return sooner. Wide mouth opening, facial massage, dental work and sleeping on the treated side are avoided in the early period so the barbs are not dislodged. What to expect for your plan is explained before treatment.
