Mono Threads: Collagen Threads for Firmer, Smoother Skin
Fine threads that boost collagen rather than lift
Mono threads are fine, smooth PDO threads placed under the skin in a mesh pattern. Unlike barbed lifting threads, they do not pull tissue up. Instead, they stimulate collagen to improve firmness and fine lines. Here is how they work and who they suit.
Key takeaways
- What they are: fine, smooth dissolvable threads.
- Effect: collagen stimulation and gentle tightening.
- Areas: cheeks, under-eyes, neck and smile lines.
- Downtime: mild swelling or bruising for a few days.
- Duration: often about 6 months.
Mono threads vs lifting threads
| Mono threads | Lifting (cog) threads | |
|---|---|---|
| Structure | Smooth | Barbed or cogged |
| Main effect | Firmness, texture | Lift and repositioning |
| Number used | Many fine threads | Fewer, thicker threads |
| Downtime | A few days | About 1 week |
Typical prices in Seoul (2026)
Mono threads in Seoul commonly cost about ₩200,000–₩600,000, depending on the area and number of threads.
Approximate ranges from publicly listed 2026 prices.
Good combinations
- With skin boosters for hydration.
- With RF or HIFU for deeper tightening.
- With lifting threads where sagging is more noticeable.
Questions to ask before you book
- Do I need mono threads or lifting threads?
- How many threads will you use?
- How long will results last?
- Can it be combined with boosters?
Related reading
Quick summary
Mono threads are fine, smooth dissolvable threads that stimulate collagen for firmer skin and softer fine lines. They do not lift like barbed threads, have a few days of downtime and often last about six months.
Frequently asked questions
Do mono threads lift sagging skin?
Only slightly; barbed threads are better for lifting.
Does it hurt?
Numbing keeps it tolerable.
Will I see the threads?
No, they sit under the skin and dissolve over time.
When will I see results?
Gradually over 4–8 weeks.
How often can it be repeated?
Often every 6 months or so.
This article is general information, not medical advice. Suitability, treatment choice, results and price should be confirmed by a doctor at consultation, and individual results vary. Price ranges are approximate and may change.
Mono threads are fine, smooth PDO threads placed under the skin in a mesh pattern. Unlike barbed lifting threads, they do not pull tissue up. Instead, they stimulate collagen to improve firmness and fine lines. Here is how they work and who they suit.
