Lip Threads: My Journey to a More Defined Smile
We all want that perfect lip line, don’t we? The kind that makes lip liner look effortless and lipstick stay put. But as skin matures, that crisp vermilion border—the edge where lips meet skin—can soften and blur. I found myself longing for more structure, for a clean, defined shape that would make my makeup routine easier and my smile more striking. That’s when I discovered a secret weapon: PCL threads.
You’ve probably heard of PDO threads for skin tightening. But PCL threads? They’re less common, and for me, they’re a game-changer. Let me share what I learned.
Why PCL Threads Over PDO or PLLA?
When it comes to lip definition, not all threads are equal. PDO threads dissolve in less than six months and offer mild collagen stimulation. PLLA threads—made of poly-lactic acid—last 12 to 24 months and help with volume restoration, but they also burn during placement because of that ingredient. But PCL, or polycaprolactone threads, are different. They don’t burn. They last up to 36 months, giving you long-lasting definition and collagen growth. That means for two to three years, that sharp, tight vermilion border stays exactly where you want it.
Key Benefits of PCL Lip Threads
- Strong, long-lasting support for lip contouring.
- Gradual collagen stimulation for a naturally enhanced definition over time.
- More durable results than PDO, which vanish in under six months.
- Subtle improvement rather than an instant, often jarring, change.
There are considerations: initial swelling and stiffness can occur due to the thicker thread material, and there might be slightly more discomfort than with PDO. But in my experience, PCL threads are the easiest to work with, and I haven’t noticed any abnormal swelling or stiffness. I also appreciate that the filament is clear—not blue like PDO—so it blends in invisibly.
How PCL Compares to PDO and PLLA
Let’s break it down. PDO threads are great for a quick lift and subtle skin tightening, but they last under six months and only stimulate collagen mildly. PLLA threads are stronger, support volume restoration, and last 12 to 24 months, but they don’t give an immediate lift and can be painful during insertion. PCL threads are the powerhouse: they last 24 to 36 months, are extremely strong, ideal for deep tissue lifting, and promote long-term collagen production. Their immediate lift is minimal, but the results are cumulative and lasting.
A Surprising Side Effect: Visible on X-Rays
Here’s something I learned the hard way. PCL threads are so durable that when I went to the dentist for X-rays, my doctor thought his machine was broken. It turns out those “little worm-like” shapes on the scan were my threads, still dissolving in my face. So if you ever see that, don’t panic—it’s just your threads doing their job.
Who Should Consider PCL Threads?
These are ideal if you have moderate to severe skin laxity and want a long-term lifting effect. They’re also for anyone seeking maximum collagen stimulation for anti-aging benefits, especially if you’ve tried PDO or PLLA threads and want something more durable. That said, because PCL threads are thicker and stronger, there can be more downtime and swelling compared to PDO or PLLA—though, again, I haven’t found this to be a problem.
Think of PCL Like a Bio-Stimulator
This is important: don’t expect an instant lift. With PCL, the results are gradual. It’s similar to Sculptra, another bio-stimulator. After treatment, you might see immediate improvement from swelling, but that’s just temporary. The real magic—the collagen building that improves firmness and elasticity—takes time. Don’t be disappointed if the initial effect fades; the long-term benefits are worth it.
Which Thread Should You Choose?
- For a quick lift and definition: PDO threads.
- For collagen stimulation and gradual volume: PLLA threads.
- For deep, long-lasting anti-aging effects: PCL threads.
My Plan for Today
I decided to use 20 PCL threads. They were mono threads—single filaments, not coiled or cogged. The package read M3025, which means: mono thread, 30-gauge needle (very fine), and 25 mm in length. The material was PCL. Inside each package, you get two threads, each with a small sponge stopper to keep the filament attached during insertion. Once you open a package, you must use all threads or discard them. So I prepared to use all 20.
Because the mouth area is so sensitive, I numbed with a 10-12% numbing cream from Korea. I also took arnica sublingually to minimize bruising. After cleansing and dermarolling the area, I applied a thick layer of numbing cream and covered it with plastic wrap for about 30 minutes before beginning.
The Process
I documented my progress inside my app, so I can’t show the full technique here due to online restrictions. But I can tell you that I fanned the threads along my vermilion border, inserting them to create structure. The whole process took about 30 minutes. Right after, my lips had only a few tiny prick marks—no real bruising, just a slight prickling sensation as the numbness wore off.
The Results Over Time
24 hours later, a little bruising appeared, but nothing major. By one week, the bruises had healed completely. The point, after all, is not instant change but gradual collagen building over the next three years. And by the end of that week, my vermilion border was noticeably tighter and more defined. With makeup on, I could line my lips perfectly and keep gloss in place all day.
If you’re considering lip threads, remember: PCL is about the long game. It’s not a quick fix, but for those who want lasting structure and anti-aging benefits, it’s a beautiful choice. I’ll leave you with this: your lips deserve a story of care, not just a product. And sometimes, that story takes three years to tell.