Fios de PDO Cog

1. How do Cog threads physically lift sagging skin, and how do they differ from Mono threads?

Cog threads provide immediate physical lifting and structural support, whereas Mono threads only improve skin texture and collagen over time without lifting.

Unlike smooth mono sutures that sit in the superficial skin layer, Cog threads are equipped with small, directional barbs. When placed into the deeper tissue layer (the SMAS and subcutaneous fat pads), these barbs open up and anchor securely into the tissue. By gently pulling the thread, the practitioner can immediately reposition sagging skin—such as jowls, cheeks, and brow tails—into a higher, firmer position. Over the following months, the suture naturally dissolves while stimulating fresh collagen to hold the newly lifted contour.

2. Why do some Cog threads lose their lift early or slip, and how do Deenora threads stay secure?

Threads lose their lift when the barbs fail to grip firmly or when the suture cannot handle daily facial movements like smiling, speaking, and chewing.

Deenora Cog Threads are designed with reinforced, high-tensile barbs cut at precise angles. During insertion, the barbs compress smoothly inside the cannula, and upon withdrawal, they immediately open and lock into the surrounding facial fascia. This strong mechanical hold keeps the thread firmly anchored, preventing slippage or premature drop even in active, expressive facial areas.

3. What is the real difference between 3D, 4D, and 6D Cog threads, and which one should I choose?

The main difference is the arrangement of the barbs: 3D and 4D threads have barbs on 3 to 4 flat planes, while 6D threads feature a full 360-degree spiral of barbs for maximum all-around grip.

• 3D & 4D Cogs: Ideal for straightforward, linear pulling along the cheeks and nasolabial folds where direct upward traction is required.
• 6D Helical Cogs: Best for dynamic facial areas. Because the barbs wrap around the entire thread in a continuous spiral, the thread maintains grip from all angles even when facial muscles move. This 360-degree design increases holding power by around 40% and distributes pulling force evenly, helping prevent skin dimpling or surface irregularities.

4. Which gauge and thread length is best for Fox Eyes and Brow Lifts versus Lower Face Jowls?

Use 25G 38mm or 60mm Mini Cog and Fox Eyes threads for eyebrows and temples, and stronger 19G or 21G 100mm threads for lower-face jowls and heavy sagging.

Delicate areas with thin skin—such as the eyebrow tail, temple (Fox Eye area), and nose tip—require fine threads to avoid visible lines, bumps, or entry marks. Our 25G Mini Cog enters smoothly without requiring a pre-punched hole, while our specialized Fox Eyes sutures lock into the temporal fascia to provide a crisp, upward-lateral pull that resists blinking fatigue. For heavier sagging along the jawline, jowls, and neck, the thicker 19G and 21G traction threads provide the heavy-duty strength needed to lift deeper tissue.

5. How do PDO, PCL, and PLLA Cog threads compare in duration and flexibility?

PDO threads last 12 to 18 months and offer firm holding stiffness; PCL threads last 2 to 3 years and provide natural flexibility; PLLA threads last 18 to 24 months and actively restore lost facial volume.

• PDO (Polydioxanone): The classic, reliable choice. Provides strong initial firmness and immediate lifting for sagging jowls and heavy skin, with results lasting 12 to 18 months.
• PCL (Polycaprolactone): Extremely soft and flexible. In highly active expression zones (like smile lines), PCL bends and moves naturally with facial expressions without feeling stiff, offering long-lasting results for 2 to 3 years.
• PLLA (Poly-L-Lactic Acid): Ideal for mature or thinner faces. As PLLA gradually dissolves, it releases micro-stimulators that trigger collagen growth, thickening the skin and restoring natural facial volume alongside the lift.

6. How do Deenora Cog Threads help prevent skin dimpling, puckering, and thread extrusion?

Skin dimpling and extrusions are prevented through our 360-degree distributed tension design and pre-loaded smooth blunt cannulas.

Dimpling happens when pulling tension is concentrated on a single spot beneath the skin. Our 6D spiral barb design spreads the lifting tension across multiple points along the entire thread, keeping the skin surface smooth and natural. Additionally, our threads are pre-loaded in premium L-type and W-type blunt cannulas, allowing smooth navigation through the correct tissue layer without puncturing delicate blood vessels or placing the thread too close to the skin surface.

7. Are Deenora Cog Threads certified?

Yes, all Deenora Cog Threads are made from 100% pure medical-grade suture material and are fully CE-certified.