You’ve been researching PDO thread lifts. You’ve probably seen the terms “mono threads,” “screw threads,” and “COG threads” pop up and wondered what they actually mean.
This matters. The type of thread your provider uses directly determines what you’ll see in the mirror after treatment.
Here’s the honest breakdown.
All three thread types share the same base material. PDO stands for Polydioxanone – a synthetic biodegradable polymer used in surgical sutures for decades. The body absorbs it naturally through hydrolysis, and as it dissolves, it triggers fibroblasts to produce new collagen in the treated area. By month 7 post-treatment, the collagen present in the treated area increases by 100%.
So every type of PDO thread stimulates collagen. That’s not what sets them apart.
What separates them is their design – and their design is everything.
The thread type determines whether you get skin tightening, volume, or actual lifting. These are three different outcomes. Patients often walk in thinking they’re the same. They’re not.
Mono threads are smooth, single-strand filaments with no barbs. They’re placed in a mesh-like pattern under the skin to stimulate collagen production and gradually improve skin firmness over time.
Think of them as a scaffold for your skin’s own healing response. They’re best for areas like the neck, forehead, under-eye region, and fine lines where mild laxity is the primary concern.
Here’s the limitation that most clinics won’t spell out clearly: mono threads do not physically lift tissue. They improve skin quality over time. The results are gradual and subtle.
If you’re noticing sagging skin along the jawline, drooping cheeks, or jowls forming, mono threads alone won’t address that. Your skin will feel slightly firmer months later, but the position of the tissue won’t change.
Between 10 and 20 mono threads are typically used per treatment area. Without barbs, they have to be anchored to a fixed point to create any traction at all. Even then, the lift they produce is minimal compared to barbed options.
Screw threads are mono threads coiled around the inserting needle, creating a twisted structure. This design increases the thread’s surface area contact with the subcutaneous layer, which means stronger collagen stimulation than a flat mono thread.
Screw threads work well in hollow or sunken areas of the face. They’re often used in:
The coiled design adds a subtle plumping effect as collagen forms around the thread structure. For patients dealing with volume loss rather than tissue descent, screw threads can help.
But like mono threads, screw threads don’t grip tissue. They can’t reposition sagging skin. They improve texture and add subtle fullness. If lifting is your goal, screw threads won’t get you there.
COG threads are barbed PDO threads. The barbs are tiny hook-like projections that grip the underside of the skin tissue when inserted. This allows the provider to physically reposition and lift the skin, not just stimulate collagen.
This is a mechanical lift. It works immediately.
When COG threads are placed, the barbs anchor into the tissue. The provider then applies traction to reposition the skin in an upward direction. You see the result right away – lifted cheeks, a defined jawline, reduced jowl appearance.
Then, as the threads dissolve over 6-12 months, new collagen forms around the barbs. This reinforces the structural change and extends the results beyond the life of the thread itself. Total result longevity with COG threads averages 12-18 months.
For patients who want a visible facelift without surgery, COG threads are the thread type that delivers it.
Here’s how the three types compare on the factors that actually matter to patients:
| Feature | Mono Threads | Screw Threads | COG Threads |
| Physical lift | No | Minimal | Yes – immediate |
| Collagen stimulation | Yes | Yes (stronger than mono) | Yes |
| Best for | Skin texture, mild laxity | Volume loss, hollow areas | Sagging skin, jowls, jawline, cheeks |
| Anchors to tissue | No | No | Yes (barbs) |
| Typical results duration | 6-12 months | 9-12 months | 12-18 months |
| Lifting mechanism | Passive (collagen only) | Passive (collagen only) | Active (mechanical grip + collagen) |
Most people who search “PDO thread lift,” “jawline thread lift,” or “non-surgical facelift” are responding to a specific visual change they’ve noticed. Their skin is starting to move. Gravity is winning.
Skin texture treatments like mono threads address how the skin looks and feels at the surface. COG threads address where the tissue sits.
If you’re in your late 30s or 40s and you’re noticing:
…the issue is structural. The tissue has descended. Collagen stimulation can improve the quality of that descended tissue. But it won’t move it back up.
Only a thread with physical grip – a barbed COG thread – can do that.
This is why barbed PDO threads are used in the highest-value thread lift procedures. When you see a PDO thread lift priced at $1,500-$3,500 in Texas, it almost always involves COG threads. That’s the thread built for real lifting outcomes.
Some providers combine thread types in a single session. They may use COG threads for lifting in the cheeks and jawline, then place mono threads in surrounding areas to improve overall skin texture.
This combination can produce strong results. COG threads do the repositioning work. Mono threads then refine and firm the skin quality around the treated area.
The issue? Not all clinics offer this approach. Some offer only mono or screw threads at a lower price point and market it as a “thread lift.” The patient expects lifting and gets collagen stimulation instead. That’s the disconnect that causes disappointment after treatment.
Before you book any thread procedure, ask directly: Are you using barbed COG threads? That question tells you immediately whether you’re getting a real lift.
Some patients assume barbed threads carry more risk because they grip tissue more aggressively. That concern is understandable. Let’s address it directly.
PDO COG threads have been used in aesthetic medicine for years with a well-documented safety record. The material is the same biocompatible polydioxanone used in surgical sutures globally. The barbs dissolve along with the thread.
Risks associated with COG thread lifts are generally mild – some swelling, tenderness, or bruising in the first 1-3 days. These resolve on their own. Serious complications are rare when the procedure is performed by an experienced, licensed provider with proper anatomical training.
The risk profile increases significantly when thread lifts are performed by inadequately trained providers. Thread placement requires precise anatomical knowledge. The depth, angle, and direction of insertion all affect both safety and outcome.
This is not a treatment to choose based on price alone. Your provider’s qualifications matter more than any other variable.
InjectCo specializes in barbed COG thread lifts across eight Texas locations. Here’s where COG thread placement is most effective:
COG threads work on patients with mild to moderate skin laxity. If skin laxity is severe, a consultation will determine whether threads are sufficient or whether a surgical approach is a better fit.
At InjectCo, our providers use advanced barbed PDO threads because they deliver the most noticeable lifting and structural support while still stimulating collagen production as the threads dissolve naturally over time.
We’re a nurse-led practice. Every treatment is performed by a licensed master nurse injector with physician supervision. That means your COG thread placement is done by someone who understands facial anatomy at the clinical level.
Here’s why patients across Dallas, Fort Worth, Plano, Colleyville, Argyle, The Woodlands, Waxahachie, and Austin choose InjectCo for thread lifts:
Smooth threads have their place. Screw threads do too. But if you came here because you want to look lifted – not just firmer – COG threads are the right tool.
Don’t spend your money on a thread procedure that can’t deliver the result you’re looking for.
Learn more about PDO thread lifts at InjectCo and book a free consultation with one of our licensed nurse injectors. We’ll assess your skin laxity, discuss your goals, and tell you exactly what a COG thread treatment plan for your face would look like.
Call (817) 533-7676 or book online. Eight Texas locations. Same-day appointments often available.
This blog is intended for educational purposes only and does not constitute medical advice. Individual results vary. Please consult a licensed medical provider to determine what treatment is appropriate for your needs.
