NEO Cog Cannula
Polydioxanone (PDO) cog thread · bi-directional barbs on a blunt cannula · 18G and 19G, 100 mm. 20 pieces per pack.
$138.90
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Neo Cog Thread (Bi-Directional / Cannula) PDO is a polydioxanone threads on cannula with bi-directional barbs used for the thread lifting of face, elimination of fine lines and management of skin sagginess. Cog Thread (Bi-Directional / Cannula) threads is a model of threads on cannula with bi-directional barbs for the management of skin sagginess.
Types example :
| Model Code | Needle Size | Needle Length | Threads Length | USP |
| M3112 | 31G | 12mm | 16mm | 7-0 |
Professional use only. This product is intended for administration by licensed healthcare practitioners trained in the relevant anatomy and injection technique. By ordering you confirm you are authorised to purchase and handle products of this class in your jurisdiction. Availability and permitted use vary by country — please verify local regulations before ordering.
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Bi-directional barbed PDO threads on a blunt cannula
NEO Cog Cannula is a barbed polydioxanone thread delivered through a blunt-tipped cannula rather than a sharp needle. Unlike the smooth threads in this range, it is designed to engage tissue and hold it in a new position.
The barbs are bi-directional: they face outward from the midpoint of the thread in both directions. That configuration anchors against tissue at both ends rather than requiring a fixed anchor point, so the thread supports the segment it spans without being tethered to deep fascia.
The cannula matters as much as the cogs. A blunt tip pushes vessels and nerves aside rather than cutting through them, which materially reduces bruising and the risk of vascular injury compared with a sharp-needle cog thread. The trade-off is that you need an entry point made with a separate sharp needle, and advancing a blunt tip through fibrous tissue takes more deliberate technique.
Barbed threads grip and reposition tissue. The smooth threads in this range do not — that is the whole distinction.
A blunt tip displaces vessels rather than cutting them, reducing bruising and vascular risk compared with sharp-needle cog threads.
Barbs face outward from the midpoint in both directions, anchoring the thread against tissue at both ends.
Mechanical support while the thread is intact, plus the collagen response that outlasts it.
Why practitioners stock NEO Cog Cannula
The barbs engage subcutaneous tissue and hold it where you place it. This is the product to reach for when the clinical problem is descent rather than skin texture.
A blunt cannula tip parts tissue rather than cutting it. For patients who cannot afford visible downtime, this is the practical argument for the cannula format.
Bi-directional barbs anchor against tissue at both ends, so the thread does not need to be tethered to temporal fascia or any fixed point.
Spans the full vector from entry point to target in jawline and cheek work without needing a second pass.
Treatment areas
Areas where barbed threads are used to reposition tissue. These are lifting applications — distinct from the skin-quality work that smooth threads address.
The primary application. Vectors run from a pre-auricular or temporal entry down along the mandibular border to gather and support descended tissue, restoring definition to the jaw angle.
Repositioning malar and submalar tissue that has dropped, typically along an oblique vector toward the temporal region. Depth control is critical here — too superficial shows as contour irregularity.
Addressed indirectly by lifting the tissue above them rather than filling them. Worth setting out clearly at consultation: a thread lift softens these folds by moving what causes them, which looks different from filling them.
Early submental laxity and upper neck slackness, where the 100 mm cannula spans the vector in a single pass. Marked platysmal banding or significant submental fat is a surgical conversation, not a thread one.
PDO threads are sterile implantable medical devices. Which applications are permitted, and what training is required, is determined by the regulatory framework where you practise. Barbed threads produce a mechanical result that depends almost entirely on operator technique. Korea Filler Experts supplies the product; nothing here is a recommendation to treat any condition, and nothing here substitutes for hands-on training.
Available sizes and specifications
| C18100B-C | 18G · 100 mm cannula · 140 mm thread |
| C19100B-C | 19G · 100 mm cannula · 140 mm thread |
| Material | Polydioxanone (PDO) |
| Barb configuration | Bi-directional cogs |
| Delivery | Blunt-tipped cannula |
| Pack size | 20 pieces per pack |
| Sterilisation | Sterile, single use only |
| Storage | Room temperature, dry, away from sunlight |
Checking the pack
- The model code matches your order — C18100B-C and C19100B-C differ only in gauge.
- Each blister is intact and dry. A breached sterile barrier makes that unit waste.
- The expiry date is clear. PDO hydrolyses with moisture, so shelf life is real.
- The pack holds 20 pieces.
Plan your entry needles separately. A blunt cannula cannot make its own entry port — you will need a sharp needle of appropriate gauge, and it is not supplied with this product.
What each component does
Reading these specifications
- 18G and 19G — the cannula diameter. These are substantially heavier than the 26G–31G needles used for mono threads, because a barbed thread is thicker and the cannula has to carry it. Expect to make an entry port with a sharp needle first.
- 100 mm cannula, 140 mm thread — the filament extends 40 mm beyond the cannula so it stays in tissue as the cannula withdraws.
- Bi-directional barbs — cogs are cut facing outward from the thread’s midpoint in both directions. Each half grips the tissue it passes through, so the thread anchors itself against the tissue at both ends.
Why bi-directional rather than uni-directional
Uni-directional cog threads have all barbs facing one way and must be anchored at a fixed point — typically deep temporal fascia — so the thread pulls against something immovable. That gives strong lift but requires a more involved technique and a secure anchor.
Bi-directional threads anchor against tissue itself at both ends. The technique is more forgiving and the entry is simpler, with the trade-off that the lift vector is generally less aggressive. For most jawline and cheek work that trade is worth making, which is why bi-directional threads are the more widely used format.
One specification we have deliberately left out
The supplier’s variation codes carry a trailing number — 2 on the 18G and 1 on the 19G. We believe this indicates threads per cannula, but it is not documented and we have not been able to confirm it. Rather than print a guess on a specification sheet practitioners rely on, we have omitted it. Ask us before ordering and we will confirm against the supplier documentation.
How to use NEO Cog Cannula
Reference information for practitioners already trained in barbed thread technique. Cog threads carry a materially higher risk profile than smooth threads — dimpling, visible contour irregularity, asymmetry and extrusion are all realistic outcomes of poor vector planning. This is not a procedure to learn from a product page.
Step by step
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Plan vectors with the patient upright
Mark entry points and intended vectors before the patient lies down. Gravity changes everything about where tissue sits, and a vector planned supine will not deliver what you discussed in the mirror.
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Prepare and anaesthetise
Thorough antisepsis — this is an implant. Local anaesthetic at entry points and along the planned tracks; topical alone is rarely sufficient for 18G or 19G work.
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Create the entry port
Make the entry with a sharp needle of appropriate gauge. The blunt cannula cannot penetrate intact skin by itself.
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Advance in the correct plane
Introduce the cannula and advance in the subcutaneous plane along the marked vector. Depth consistency matters more than speed — too superficial causes dimpling, too deep loses purchase.
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Withdraw and engage
Withdraw the cannula while holding the thread, leaving the barbed filament in tissue. The cogs engage as tissue settles against them.
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Redrape and assess
Gently redrape the tissue along the vector to seat the barbs, then sit the patient up and assess symmetry before treating the other side or trimming.
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Trim flush
Trim protruding thread at skin level with the tissue in its neutral position, so the end retracts below the surface rather than standing proud.
Administration notes
Assess sitting up, always. The single most common cause of an unhappy thread-lift patient is a result planned and judged with them lying flat. Sit them up before you commit to the contralateral side.
Dimpling at the entry or along the track usually means the thread was placed too superficially, or the tissue was redraped too aggressively. Mild dimpling often settles within one to two weeks; marked dimpling needs review rather than reassurance.
- Single use. Never re-sterilise or reuse a cannula or thread.
- Do not place cog threads across an active infection, recent filler, or an area of previous permanent implant.
- Barbed threads in the wrong plane can be visible, palpable or extrude. Plane control is the technique.
- Dispose of entry needles into a sharps container per local clinical waste requirements.
After treatment
- Swelling, bruising and a tight or pulling sensation are expected for one to two weeks
- Advise minimal facial movement — no wide yawning, big smiles or chewing tough food — for two weeks
- Sleep on the back, head elevated, for the first week
- No facial massage, facials or dental work for three to four weeks
- No saunas, steam rooms or strenuous exercise for two weeks
- Review at two weeks. Spreading redness, increasing pain, discharge or a visibly extruding thread needs seeing promptly
Storing and handling NEO Cog Cannula
Store at room temperature in a dry place, away from direct sunlight. No refrigeration, no cold chain.
Each unit is individually sealed and sterile. Do not use any whose blister is open, torn, damp or damaged. Never re-sterilise — autoclaving destroys PDO.
Avoid dragging the thread against the packaging or instruments when loading. Barbs are cut features and can be damaged, which costs you the grip you are paying for.
Single use only. Do not reuse, re-sterilise or repackage. Dispose of used cannulas and entry needles into a sharps container, and unused product as clinical waste in line with local requirements.
What's included
Entry needles are not supplied and are required — a blunt cannula cannot make its own entry port. Antiseptic, local anaesthetic, marking pen and sharps disposal are also not included.
NEO Cog Cannula — frequently asked questions
What is a cog thread?
A polydioxanone thread with barbs — cogs — cut into its surface. The barbs grip subcutaneous tissue, which allows the thread to hold tissue in a repositioned place. This is what distinguishes it from the smooth mono and screw threads in the same range.
How is this different from the mono threads you sell?
Fundamentally. A mono thread is smooth, so it has nothing to grip with — it stimulates collagen and improves skin quality, but it cannot move tissue.
A cog thread grips and repositions. If your patient’s problem is jowling or a lost jawline, this is the product; if it is crepey texture with no descent, mono threads are the better and far cheaper answer. Many suppliers describe both as “lifting” threads. Only one of them is.
Why a cannula rather than a needle?
A blunt cannula tip pushes vessels and nerves aside instead of cutting through them. In practice that means considerably less bruising and a lower risk of vascular injury, which matters when you are travelling 100 mm through the subcutaneous plane.
The cost is that you need a separate sharp needle to make the entry port, and advancing a blunt tip through fibrous tissue requires more deliberate technique.
What does bi-directional mean?
The barbs face outward from the midpoint of the thread in both directions, so each half grips the tissue it passes through. The thread anchors against tissue at both ends rather than needing to be tied to a fixed point such as temporal fascia.
Uni-directional threads, by contrast, all face one way and must be anchored. They give a stronger pull but demand a more involved technique.
What is the trailing number in the product code?
C18100B-C ends in 2 and C19100B-C ends in 1. We believe this indicates threads per cannula, but it is not documented in the material we hold, so we have left it off the specification table rather than print a guess.
Ask us before ordering and we will confirm it against the supplier documentation.
How long does the result last?
The PDO hydrolyses over roughly six months, so the mechanical support is temporary. The collagen laid down around the thread persists beyond that, which is why the result does not simply disappear when the material does.
Reported duration varies widely with patient tissue, thread count and technique. We would rather not give you a number to repeat to patients — assess at review and plan from what you see.
How many threads per side?
That is a technique decision rather than a product specification, and it depends on vector plan, tissue weight and the result you are aiming for. It is covered in cog thread training, which is a prerequisite for using this product.
What if the patient dimples after treatment?
Dimpling along a track usually means the thread sits too superficially, or the tissue was redraped too hard. Mild cases often settle within one to two weeks as swelling resolves and tissue relaxes.
Persistent or marked dimpling needs reviewing in person. Do not manage it over the phone.
Do they need refrigeration?
No. Room temperature, dry, out of direct sunlight — no cold chain to manage, which makes threads much simpler to stock than injectables.
Who can buy and use these?
Barbed threads are sterile implantable medical devices and carry a higher risk profile than smooth threads. They require specific training in vector planning, plane control and barbed thread technique. We supply to practitioners qualified to perform the procedure in their jurisdiction, and do not sell to consumers.
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