Beyond Threads: How Liquid PDO Threadlift Is Changing the Conversation Around Collagen Support in Asia like Korean and Singapore

When people hear “PDO”, the first thing that often comes to mind is a thread lift — fine threads placed beneath the skin to provide structural support and stimulate collagen.

But PDO can be used in a very different way.

Instead of inserting physical threads, micronised PDO particles can be delivered into the skin to support the skin’s natural collagen-building process. This approach is sometimes referred to as a liquid PDO threadlift, and it is gaining attention among those looking for gradual improvements in skin firmness, texture and overall skin quality without a traditional thread lift.

Two formulations commonly discussed in this category are UC100 and UC200. While they are both based on PDO, they are designed with different particle characteristics and treatment applications.

First, What Is PDO?

PDO, or polydioxanone, is a biodegradable material that has been used in medical applications for many years, including absorbable surgical sutures.

In aesthetic medicine, PDO has also been explored for its interaction with the skin’s tissue environment. As PDO gradually breaks down, it can trigger a local tissue response associated with collagen production.

The concept is relatively simple: rather than trying to create an immediate structural change, the treatment aims to encourage the skin to gradually remodel itself.

This is one reason collagen-stimulating treatments are increasingly being viewed as part of a longer-term approach to skin ageing.

UC100: Focusing on Skin Quality and Collagen Support

UC100 uses micronised PDO particles designed to be introduced into the skin rather than placed as traditional threads.

The objective is to support collagen formation and improve the overall quality of the skin. As collagen is an important component of the dermal structure, supporting its production may help address concerns such as loss of firmness, fine lines and changes in skin texture.

Rather than creating a “pulled” appearance, the approach is focused on encouraging the skin to gradually develop a more supported and resilient feel.

This makes liquid PDO particularly interesting for people who are beginning to notice changes in skin firmness but may not necessarily be looking for a conventional thread-lifting procedure.

What makes UC200 different from a traditional thread lift?

A traditional PDO thread lift involves inserting physical threads beneath the skin. These threads can provide mechanical support while also stimulating a collagen response.

UC200, on the other hand, uses micronised PDO particles without physical lifting threads.

The emphasis is therefore less on mechanical lifting and more on the skin-remodelling aspect of PDO.

UC200: Taking the Concept Beyond Skin Rejuvenation

While UC100 is generally associated with skin quality and collagen support, UC200 uses a different particle formulation and is commonly positioned for applications involving broader tissue support and facial contouring.

The micronised PDO particles are introduced into selected areas rather than forming a physical thread structure underneath the skin.

The idea is to work with the skin’s own regenerative processes while addressing areas where age-related changes may be more noticeable.

Depending on the treatment plan, liquid PDO may be considered for areas such as the jawline, lower face and areas showing early loss of definition.

UC100 vs UC200: What Is the Difference?

	UC100	UC200
PDO format	Micronised PDO particles	Micronised PDO particles
Physical threads	No	No
Main focus	Skin quality & collagen support	Collagen support & facial contouring
Common concerns	Fine lines, skin laxity, texture	Loss of definition, laxity & contour
Approach	Gradual skin remodelling	Gradual tissue support and remodelling

The distinction is not simply about which one is “better”. UC100 and UC200 serve different purposes, and the appropriate formulation depends on the individual’s concerns and the area being treated.

Why Is Collagen So Important?

Collagen is one of the major structural proteins in the skin. It contributes to its strength, firmness and overall structure.

Unfortunately, collagen production naturally declines with age. At the same time, existing collagen can become fragmented and less organised.

This is why skin ageing is not only about wrinkles.

You may notice that the skin feels thinner, less resilient or less firm. The contours of the face can also become less defined as changes occur across the skin and underlying tissues.

Collagen-focused treatments therefore take a different approach from treatments that simply temporarily add volume or hydration. Their goal is to encourage the skin to improve its own structural environment over time.

It is also good to note that despite having an increase in collagen production, in 2026, aesthetic medicine has ventured into ECM support by using an ECM booster to further improve the foundation of the skin.

The Appeal of a Gradual Approach

One of the interesting aspects of liquid PDO is that it fits into the growing interest in “tweakments” and preventative aesthetics — treatments designed to support subtle changes rather than dramatically alter facial features.

Instead of looking for an instant transformation, some patients prefer treatments that work progressively.

The result is generally intended to be a more natural-looking improvement in skin quality and firmness rather than a visibly “done” appearance.

Of course, results vary between individuals. Factors including age, skin quality, lifestyle, collagen production, treatment area and the amount of tissue laxity can all influence the outcome.

The Bigger Picture: Treating Skin Ageing From Different Angles

Modern aesthetic medicine is increasingly moving away from the idea that every ageing concern can be solved with a single treatment.

Skin ageing involves multiple layers and processes — from collagen loss and changes in skin elasticity to alterations in fat distribution and underlying facial structure.

This is why treatments are increasingly being selected according to what the skin and tissues actually need, rather than simply chasing wrinkles.

Liquid PDO represents one approach within this broader category of collagen-supporting treatments.

For UC100 and UC200, the central idea is straightforward: rather than simply disguising signs of ageing, the treatment works with the skin's natural remodelling process to support its structure over time.

And perhaps that is where the conversation around collagen is heading — not just adding something to the skin, but understanding how we can better support the skin's own ability to maintain itself.