Polydioxanone (PDO) threads are biodegradable sutures used in some non-surgical cosmetic treatments to give the skin temporary structural support and to influence the body’s own collagen production. Originally developed for surgical suturing, they are now used in PDO thread lift treatments, where fine threads are placed beneath the skin.
A PDO thread lift is a non-surgical procedure and is not a substitute for surgery — its effects are more subtle and develop gradually. It may be an option for some people with mild to moderate skin laxity, but whether it suits you, what result is realistic, and what recovery involves can only be determined by a qualified practitioner after an individual assessment. Individual results vary.
The history of PDO threads
PDO threads were introduced in the 1980s as biodegradable sutures in cardiovascular and orthopaedic surgery. Their ability to provide temporary structural support while being absorbed by the body led to their use across several medical fields.
Development in cosmetic treatments
In the 1990s, some practitioners used non-absorbable threads (such as polypropylene) to reposition facial tissue. Complications including thread migration, visibility and long-term maintenance led to further development. By the early 2000s, absorbable PDO thread lifts were introduced as a temporary alternative that dissolves naturally over time.
How PDO threads work
PDO threads work in two phases: an initial period of structural support, followed by a longer phase in which the body responds to the dissolving threads.
Initial support
Lifting threads are designed with small barbs or cogs that engage the tissue beneath the skin. During the procedure, thin needles or cannulas are used to position the threads. Once placed, they act as a temporary scaffold that can contribute to a repositioning effect in the treated area. This effect is temporary — the threads dissolve over roughly 6 to 9 months.
Longer-term collagen response
As the threads dissolve, the body’s healing response can stimulate collagen production gradually over several months. This may influence skin firmness and texture. How much benefit any individual sees, and for how long, depends on skin characteristics, lifestyle and the body’s own healing — results vary from person to person, and are not guaranteed.
Types of PDO threads
The type of thread used depends on the individual and the treatment goal, as assessed by a qualified practitioner.
Lifting threads
Barbed or cogged threads anchor into the layers beneath the skin to provide a repositioning effect. They are commonly considered for areas such as the neck, jawline and midface. As above, a thread lift is not a replacement for surgery and its results are more gradual and subtle.
Mono threads
Smooth threads without barbs, used mainly to support skin texture rather than to reposition tissue. They work by prompting a gradual collagen response and are commonly used in areas such as the forehead, under-eye region and neck.
Twisted or screw threads
Coiled threads that may help provide support and volume in specific areas, such as the cheeks. They are sometimes combined with mono threads within a treatment plan.
Cost considerations
The cost of a PDO thread lift depends on the number of threads used, the area treated, and the type of thread. As an indicative guide:
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- Lifting threads: from $2,500
- Mono threads (midface and jawline): from $400
- Mono threads (full-face): from $600
These are starting prices for guidance only; your actual cost is confirmed after an individual assessment.
Want to learn more? Contact us
If you are considering a PDO thread lift and would like to find out whether it is suitable for you, MedAesthetics provides individual assessments so you receive guidance based on your goals, and a clear explanation of the benefits, limitations and risks. Our clinical team works to relevant medical guidelines to help you make an informed decision. Contact us to learn more, or enquire about a consultation.
