Thread Lift (PDO / PLLA / PCL)

What it is

Thread lifting inserts absorbable sutures subcutaneously using a needle or cannula to lift, anchor, and rejuvenate sagging facial tissue without open surgery. Three primary polymer families are used.

• PDO (Polydioxanone) — synthetic polyester suture material with decades of surgical history. Aesthetic PDO threads dissolve via hydrolysis over approximately 6 to 8 months. Collagen scaffolding effects persist 12 to 18 months.
• PLLA (Poly-L-lactic acid) — Silhouette Soft (Sinclair Pharma) is the leading branded option. Threads dissolve over 12 to 18 months with prolonged progressive collagen biostimulation.
• PCL (Polycaprolactone) — Korean brands include BISTOOL and ELASTY PCL. Threads degrade over 12 to 15 months with tissue effects lasting up to 24 months. Comparative animal studies show significantly higher Type III collagen induction than PDO or PLLA.

Thread configurations include monofilament (smooth threads for skin texture), cog or barb (uni- or bi-directional hooks for mechanical lifting), and screw or spring (double-helix for volumizing). Combination layering of cog PDO for the lift vector plus smooth PCL for neocollagenesis is standard protocol in Korean high-volume clinics.

How it works

Two mechanisms work in parallel.

First, mechanical suspension. Cog and barb threads physically anchor to subcutaneous tissue and are tensioned to elevate sagging skin. Bidirectional cog designs distribute tension evenly. Korean MINT Lift uses patented 360-degree helical molded barbs.

Second, neocollagenesis via foreign-body response. Thread polymer presence triggers a controlled inflammatory response involving macrophage recruitment, myofibroblast activation, and TGF-beta signaling. Collagen Type I and III production follows. Mechanical stress at the insertion site provides additional fibroblast stimulation. PCL produces the most sustained collagen response. PDO has a shorter-duration but faster initial response. PDO hydrolysis yields 2-hydroxyacetic acid monomers eliminated by normal metabolic pathways without systemic accumulation.

Origin and development

Tissue lifting via sutures traces conceptually to the 1950s. Modern aesthetic thread lifting began in 1996 when Dr. Marlen Sulamanidze of Georgia introduced Aptos barbed polypropylene threads. Aptos received FDA clearance in 2020.

Korea's pivotal contribution came at the turn of the 2000s when Seoul-based aesthetic dermatologists began repurposing PDO surgical suture material for facial rejuvenation. The first English-language peer-reviewed clinical paper on PDO thread lifting was published by Dong Hye Suh and colleagues from Arumdaun Nara Dermatologic Clinic and Korea University College of Medicine in Dermatologic Surgery in June 2015 (n=31 procedures, 87 percent satisfactory results). Korean dermatologists Kang, Byun, and Kim at Catholic University of Korea developed a vertical lifting technique specifically for Asian skeletal anatomy, with 89.7 percent patient satisfaction in 39 Korean subjects.

HansBiomed (한스바이오메드) commercialized MINT Lift (Minimally Invasive Nonsurgical Thread) with patented press-molded 360-degree helical barbs. MINT received MFDS approval in May 2014 and became the first PDO thread to receive three FDA 510(k) clearances by 2023.

Regulatory status

Typical protocol

• Consultation and design: 30 to 60 minutes including facial mapping, skin pinch test, photography, and vector planning
• Anesthesia: topical EMLA cream applied 45 to 60 minutes prior. Optional local infiltration anesthesia at insertion and exit points
• Procedure duration: 30 to 60 minutes for a standard full-face lift
• Thread counts: typically 10 to 30 cog/barb threads for a full-face lift, plus 20 to 60 supplementary smooth or screw threads for adjunct skin quality work
• Post-procedure: cold compress; lifting compression bandage recommended for 3 to 5 days
• Downtime: most return to work within 1 to 3 days. Visible swelling typically resolves within 1 to 2 weeks; bruising within 5 to 10 days
• Longevity: PDO 6 to 12 months, PLLA 12 to 18 months, PCL up to 24 months. Korean clinics typically offer repeat sessions at 12 to 18 month intervals

Commonly reported effects

The 2015 Korean PDO knotless thread lifting study (Suh et al., n=31) reported 87 percent satisfaction. The 2017 vertical-lift study (Kang et al., n=39) reported 89.7 percent satisfaction.

A meta-analysis of 26 studies covering 2,827 patients reported the following: swelling 34 percent (early, self-limiting); ecchymosis or bruising 26 percent; skin dimpling or asymmetry 7 percent; visible or palpable threads 10 percent; thread exposure or extrusion 5 percent; infection 2 percent; paresthesia or numbness 6 percent.

Thread migration is documented, with elevated risk in high-animation facial regions and with weaker barb designs. PDO monofilament threads are intrinsically resistant to bacterial colonization due to their monofilamentous structure. Granuloma formation is significantly less common with modern PDO/PCL than with the legacy polypropylene threads of earlier eras.

Korea vs US availability

Per 모두닥 (Modoodoc) 2026 platform data, Korean thread lift pricing breaks down as follows. Basic PDO jawline cog (8-thread standard) ₩700,000 to ₩979,000. PLLA full-face ₩1,500,000 to ₩3,000,000. PCL premium ₩4,000,000 to ₩5,000,000.

In the United States, full-face thread lift typically runs $2,500 to $6,000. Korean thread lift pricing at roughly $540 to $1,900 for a standard full-face PDO cog lift represents substantial savings versus US equivalents.

Korea is the country where the modern PDO thread lift technique was clinically pioneered. Korean manufacturers (HansBiomed, Dongbang Medical) export thread products to 50+ countries while retaining the most concentrated specialist expertise domestically. Korean aesthetic medicine training emphasizes Asian-specific vector design, a technical differentiator for Asian clients worldwide.

What to research before

• Confirm thread type and brand. "실리프팅" covers PDO, PLLA, and PCL with very different durations and effects. Ask which polymer, which brand (MINT, Silhouette Soft, BISTOOL, etc.), and how many threads of each type.
• Verify operator credentials. Vector planning is operator-skill-dependent. Asian-anatomy-specific vector design is a meaningful Korean specialty. Our credential verification guide covers KSPRS and dermatology specialty registries.
• Avoid clinics using legacy polypropylene threads. Modern PDO/PCL has a much lower granuloma risk than legacy non-absorbable threads.
• Set realistic expectations on longevity. PDO at 6 to 12 months is very different from PCL at 24 months. Match thread type to expected re-treatment cadence.
• See also: our Korean Surgery Safety Guide.

Related procedures

• Ultherapy — non-mechanical lifting via HIFU; complementary or alternative to thread lift
• Shurink (Ultraformer MPT) — Korean HIFU lifting alternative
• Thermage — RF skin tightening, often paired with thread lift in Korean combination protocols
• Facelift surgery — surgical alternative when non-surgical lifting is insufficient

Sources

1. Suh DH et al. Outcomes of polydioxanone knotless thread lifting for facial rejuvenation. Dermatologic Surgery 2015;41(6):720–725. https://pubmed.ncbi.nlm.nih.gov/25993611/
2. Rofiqoh S et al. A comparative study of PCL, PLLA, and PDO thread implantation in aging model rats. Iranian Journal of Basic Medical Sciences 2025. https://pmc.ncbi.nlm.nih.gov/articles/PMC11756731/
3. Kang SH, Byun EJ, Kim HS. Vertical Lifting: A New Optimal Thread Lifting Technique for Asians. Dermatologic Surgery 2017;43(10):1263–1270. https://pubmed.ncbi.nlm.nih.gov/28430736/
4. Kim BJ et al. Proposed Treatment Protocols for Facial Rejuvenation Using a Novel Absorbable PDO Monofilament Threadlift in Koreans. Aesthetic Surgery Journal Open Forum 2021;3(1):ojaa049. https://academic.oup.com/asjopenforum/article/3/1/ojaa049/5981149
5. MINT Medical / HansBiomed. MINT Lift Product Information and MFDS Approval. http://www.mintlift.com/en/mintlift_about
6. MINT PDO. MINT becomes first PDO thread to receive three FDA clearances. 2023. https://www.mintpdo.com/announcement/mint-pdo-receives-third-fda-clearance
7. Sinclair Pharma. Silhouette Soft. https://sinclair.com/uk/brands/injectables-and-threads/silhouette-soft/
8. Sohail A et al. A meta-analysis of complications of thread lifting. Frontiers in Surgery 2026. https://pmc.ncbi.nlm.nih.gov/articles/PMC13076318/
9. JEHS. Complications after polydioxanone threads (PDO) for facial lifting. 2024. https://apcz.umk.pl/JEHS/article/view/50072
10. 모두닥 (Modoodoc). 코그실 가격정보 2026. https://www.modoodoc.com/blog/price-detail