If you’re exploring non-surgical options for a natural-looking lift, thread lifts are likely on your radar. But not all threads are the same. The two of the most common types are PDO thread lifts and Silhouette thread lifts, and both promise lift and collagen stimulation, but they deliver results in very different ways.
So, what’s the difference? And which is the smarter choice for longer-lasting, more visible results? Let’s unpack both options.
A Quick Refresher: What Are Thread Lifts?
Thread lifts are minimally invasive procedures that use dissolvable threads placed beneath the skin to lift sagging tissue and stimulate collagen production.
- PDO threads (polydioxanone) have been used in surgical sutures for decades. They offer a gentle lift and are best for early signs of skin laxity.
- Silhouette threads use poly‑L‑lactic acid (PLLA) and contain tiny bi-directional cones that anchor deep within the tissue, providing a more noticeable lift and enhanced collagen production.
Both types dissolve naturally over time and work by encouraging your body to produce more collagen; which is a key factor in firmer, smoother skin.
Why Silhouette Threads Stand Out
1. Stronger, More Structured Lift
Silhouette Soft threads are anchored using tiny cones that secure deeper into the facial tissue. This creates a more defined lift, especially for areas like the jawline, midface, and jowls, where PDO threads may not provide enough support.
2. Longer-Lasting Results
One of the biggest differences is longevity. While PDO threads typically dissolve within 6 to 9 months, the PLLA material in Silhouette threads breaks down more slowly delivering results that can last 12 to 24 months.
3. Deeper Collagen Stimulation
Silhouette threads stimulate both Type I and Type III collagen, which play vital roles in firming, plumping, and maintaining skin elasticity. This makes them particularly effective for rejuvenation over time.
4. Ideal for More Advanced Ageing
If you’re in your mid-30s or beyond and dealing with moderate skin laxity, Silhouette Soft is often the better option. It provides a firmer, natural lift without the need for surgery, making it a favourite for those not quite ready for a traditional facelift.
5. Gradual, Natural-Looking Results
Silhouette threads don’t “pull” the skin unnaturally. Instead, they provide a subtle lift that settles beautifully over time, making the face look refreshed and lifted, not stretched.
6. Minimal Downtime
Most people can return to their usual routine within 2 to 3 days. Minor swelling or bruising is possible, but recovery is generally quick and straightforward.
When Might PDO Threads Be Suitable?
While Silhouette Soft thread lifts offer more lift and longevity, PDO threads still have their place. They can be a good choice if:
- You’re in your late 20s or early 30s with very mild skin laxity
- You want a quick refresh or a subtle improvement
- You’re looking for a lower-cost entry point into thread lifts
- You’re not quite ready for something more structured or long-lasting
However, for those seeking noticeable, longer-term improvements, Silhouette Soft tends to deliver more impressive results overall.
What to Expect from a Silhouette Thread Lift
The procedure typically takes about 45 to 60 minutes and is performed under local anaesthetic. You’ll see some immediate lifting effects, followed by gradual improvements in skin firmness and texture over the next 3 to 6 months as collagen production ramps up.
While everyone’s experience is unique, many people enjoy visible improvements that last up to two years, with minimal disruption to their daily life.
In Summary: Key Differences at a Glance
Here’s a quick breakdown of how PDO thread lifts and Silhouette Soft compare:
| Feature | PDO Thread Lift | Silhouette Thread Lift |
| Material | Polydioxanone (PDO) | Poly‑L‑lactic acid (PLLA) with bi-directional cones |
| Longevity | 6–12 months (results from collagen may last) | 12–24 months—stronger and extended effect |
| Lift Strength | Subtle lift—great for mild laxity | Stronger lift—excellent for moderate to deeper sagging |
| Collagen Generation | Stimulates type I collagen | Stimulates type I & III; longer-lasting rejuvenation |
| Patient Suitability | Younger clients, mild laxity, quick refresh | Ideal for 35–55+, moderate sagging, natural facelift |
| Downtime | Minimal | Slightly longer (still short), minor swelling possible |
| Recovery | Quick | Quick— resume work in ~2 days; full results evolve over weeks |
Final Thoughts
Both PDO and Silhouette thread lifts can offer beautiful results, depending on your age, skin condition, and aesthetic goals. But if you’re looking for a stronger lift, longer-lasting outcomes, and deeper collagen regeneration, Silhouette thread lifts are the standout option.
Still unsure which option suits you best? A personalised consultation with a qualified practitioner will help determine the right path toward your most confident, rejuvenated self. Contact Ashbrooke Cosmetic Clinic today to book a one-on-one consultation with our leading physician on our thread lift services and get your questions answered.
