The nasolabial folds — the lines running from the nose to the corners of the mouth — are among the most visible signs of facial aging, and among the most misunderstood in thread work. Patients often expect threads to "erase" the fold. The professional reality is different and more effective: thread lifting does not directly erase folds. Instead, threads support the surrounding tissues, improve facial structure and stimulate collagen remodeling — and for practitioners who understand this, the nasolabial area is a precise, rewarding treatment zone.
This guide is written for licensed practitioners. It covers perioral aging as a whole — nasolabial folds, marionette lines, mouth corner aging and perioral skin quality — because these concerns appear together and are treated as one region. Product references point to CE-Marked, medical-grade threads intended for professional use.
Introduction: Understanding Perioral Aging
Perioral aging is not one problem — it is a cluster of changes that arrive together:
- Nasolabial folds — deepening lines from the nose to the mouth corners.
- Marionette lines — lines running downward from the corners of the mouth.
- Downturned mouth corners — the corners of the mouth turning downward as tissue descends.
- Perioral skin laxity — thinning skin, fine lines and loss of elasticity around the mouth.
All four share a root cause: the midface descends, volume shifts and skin loses elasticity. Treating the nasolabial area well means understanding this shared mechanism — and selecting threads that address structure, support and skin quality in combination.
Can Threads Improve Nasolabial Folds?
Yes — but with the right expectation. Threads do not remove nasolabial folds by pulling the fold itself. Attempting to "pull" a nasolabial fold creates an unnatural look. The effective approach is support:
Thread lifting does not directly erase folds. Instead, threads support surrounding tissues, improve facial structure and stimulate collagen remodeling.
This is the professional core of nasolabial work: treat the midface descent that drives the fold, support the tissue around it, and let collagen improve skin quality over time.
Best Threads for Nasolabial Fold Treatment
Cog Threads: Lifting and Repositioning
Cog threads are the first layer of nasolabial treatment. The nasolabial fold deepens largely because the midface descends — the cheek tissue migrates downward and pushes into the fold. Cog threads address this cause: they lift and reposition the midface tissue, which in turn improves the appearance of the nasolabial fold.
- Best for: folds driven by midface descent and cheek tissue migration.
- Placement logic: cog threads in the midface and cheek, not in the fold itself.
- Material: PDO standard; PCL where extended support is wanted.
Screw Threads: Structural Support and Collagen Stimulation
Screw threads are the second layer. The nasolabial area frequently involves volume loss and reduced tissue support, and screw threads provide structural support around the nasolabial area — a scaffolding effect that helps the surrounding tissue hold its position while stimulating collagen.
- Best for: volume loss and reduced support around the fold.
- Framing: screw threads provide structural support around the nasolabial area; they do not "fill" the fold — that is the domain of fillers.
Mono Threads: Skin Quality Enhancement
Mono threads are the third layer: collagen stimulation and skin-quality improvement in the nasolabial region. They do not treat the fold directly, but they improve the texture and firmness of the surrounding skin, making the overall result look natural.
Thread Hierarchy at a Glance
| Layer | Thread | Role |
|---|---|---|
| 1 — Lifting | Cog threads | Lift and reposition midface tissue driving the fold |
| 2 — Support | Screw threads | Structural support around the nasolabial area |
| 3 — Skin quality | Mono threads | Collagen stimulation and texture improvement |
Threads for Nasolabial Folds
What Causes Nasolabial Folds?
The fold is not merely a skin crease. Three mechanisms drive it:
- Midface descent — cheek tissue migrates downward, pushing tissue into the fold line.
- Volume changes — fat compartments deflate and shift, deepening the fold.
- Skin elasticity loss — reduced collagen and elastin allow the fold to settle.
Because the fold is driven by descent and volume change, thread treatment focuses on the cause, not the crease: lift the midface (cog), support the region (screw), improve the skin (mono).
Treatment Approach
- Lift the midface with cog threads to reduce the tissue pressure driving the fold.
- Support the nasolabial region with screw threads for structure.
- Improve surrounding skin quality with mono threads.
- Combine with fillers where volume deficit is significant — threads regenerate and support, fillers restore volume; many protocols use both.
Threads for Marionette Lines
Marionette lines — the downward lines at the mouth corners — are driven by lower face tissue descent and reduced jawline support. They frequently appear with nasolabial folds, and they respond to the same logic with a lower-face emphasis:
- PDO cog threads along the lower face and jawline to lift the descending tissue.
- PCL cog threads where extended support is wanted (18-24 months).
- Jawline support is the key structural layer — see our Threads for Jawline guide for the lower-face approach.
Threads for Smile Lines and Perioral Skin Quality
Beyond the folds, perioral aging includes fine lines and declining skin quality around the mouth. This layer is the mono thread's territory:
- Mono PDO threads improve fine lines, texture and firmness through collagen stimulation.
- Smooth PDO designs suit the delicate perioral skin with minimal trauma.
- PLLA may support collagen regeneration where skin quality is the primary goal.
How Practitioners Choose Threads
Thread selection for the perioral region follows the patient's clinical picture, not a fixed formula. Factors affecting thread selection include:
- Severity of tissue laxity and midface descent.
- Facial anatomy and the depth of the folds.
- Thread type and material (PDO vs PCL for duration).
- Treatment goals — structure, support or skin quality.
The practitioner determines the combination and count based on assessment; there is no standard number.
Results, Longevity and Recovery
What to Expect and When
- Day 0-2: mild swelling; possible bruising; tissue feels supported.
- Week 1-2: swelling settles; early structural effect visible.
- Month 1-3: collagen response builds; fold appearance improves progressively.
- Month 6-12: PDO results gradually fade; maintenance scheduled.
- Month 18-24: PCL results fade; maintenance scheduled.
PDO vs PCL Longevity
- PDO cog/screw: 6-12 months of support and collagen benefit.
- PCL cog/screw: 18-24 months — the longer-duration option for mature patients and those who want fewer sessions.
- Results vary with technique, patient factors and lifestyle.
Recovery Notes
Most patients return to normal activity within 24-48 hours. Swelling is usually mild; bruising can occur and settles within 1-2 weeks. Aftercare: avoid pressure on and massage of the midface for two weeks, sleep with the head elevated, and follow the practitioner's instructions.
Safety Considerations
The perioral region is anatomically sensitive, and professional awareness is essential:
- The area is supplied by the facial artery and its branches, including the angular artery — placement must respect these structures.
- This guide is educational awareness, not an operative tutorial; practitioners follow anatomy-based protocols and their training.
- Use only CE-Marked, medical-grade threads with documented traceability.
The full candidacy and safety discussion is in the Safety section of the Aesthetic Threads Knowledge Center.
Frequently Asked Questions
Can threads improve nasolabial folds? Yes — by lifting and supporting the surrounding midface tissue, not by pulling the fold itself. Results improve progressively over months as collagen remodels.
Are PDO threads good for smile lines? PDO mono threads improve fine lines and perioral skin quality through collagen stimulation; the folds themselves are addressed by cog and screw support layers.
Can thread lift fix marionette lines? Threads improve marionette lines by lifting lower face tissue and supporting the jawline; PDO and PCL cog threads are the usual choices.
PDO vs PCL threads for nasolabial folds — which is better? Not better — different. PDO provides 6-12 months with quick onset; PCL provides 18-24 months of extended support. The choice follows the patient's laxity and maintenance preference.
Are threads better than fillers for nasolabial folds? They are different tools: threads lift, support and regenerate; fillers restore volume. Many protocols combine both — the right approach depends on whether descent or volume deficit dominates.
Next Steps
The nasolabial area rewards cause-based treatment: lift the midface, support the region, improve the skin. For the full area-by-area overview, see the Thread Applications by Area section of the Aesthetic Threads Knowledge Center.
Explore the Cog Threads Collection, Screw Threads Collection and Mono Threads Collection — professional threads designed for perioral rejuvenation and midface support, in CE-Marked, medical-grade quality.
For clinics and distributors, wholesale pricing and OEM options are available — contact our team for bulk inquiries.
Disclaimer
This article is provided for educational purposes for licensed medical professionals. It does not constitute medical advice, training, or a treatment protocol. Practitioners are responsible for completing appropriate training, confirming candidacy, and following applicable regulations in their jurisdiction. Auro Threads products are CE-Marked medical devices intended for professional use only.

Sarah Bennett is a medical aesthetic educator with over 12 years of experience in non-surgical procedures, specializing in thread lifting and collagen biostimulation. She has trained practitioners across North America and Europe, and writes the clinical education content for Auro Threads, in collaboration with the Auro Medical Education Team. All articles are reviewed against current clinical literature and intended for licensed medical professionals.
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