Differences Between Thread Lifting Types - PDO, PLLA, PCL Mechanisms and Recovery Care
Thread lifting is a procedure that inserts absorbable threads beneath the skin, combining an immediate effect of physically supporting tissue with a delayed reaction that stimulates collagen production as the threads break down. The absorption period and characteristics are said to differ depending on the thread material (PDO, PLLA, PCL, etc.), and which thread is suitable depends on skin condition and treatment goals, so consultation with a specialist is necessary.
When you first become interested in thread lifting, the first concern you likely encounter is, 'There are so many types of threads—what's actually different about them?' Unfamiliar alphabet combinations like PDO, PLLA, and PCL can often feel overwhelming.
This article organizes neutral, informational content on the basic principles behind how thread lifting works, the characteristics of different thread materials, the post-procedure course and downtime, and what to pay attention to in home care during recovery. Whether to actually undergo the procedure and which thread type to choose must be decided through consultation with a specialist, tailored to individual skin condition.
How Does Thread Lifting Work?
Thread lifting is a procedure that inserts biocompatible, absorbable threads into the subcutaneous tissue to physically reposition sagging tissue. Its mechanism of action is generally explained in two ways.
One is an immediate mechanical traction effect. In the case of threads with barbs, these barbs are reported to hook onto and lift surrounding tissue, creating physical support from immediately after insertion.
The other is a delayed collagen stimulation response. As the thread gradually breaks down in the body, a foreign body reaction occurs, and in this process fibroblasts are activated, inducing collagen production. However, describing this as 'collagen remodeling' is not entirely accurate; it is more precisely understood in the literature as a collagen production or remodeling stimulation response.
In other words, thread lifting can be understood as a procedure in which the immediate physical traction upon insertion and the tissue response that emerges over time work together. However, the degree and duration of these responses vary from person to person.
PDO, PLLA, PCL — Characteristics of Different Thread Materials
Most threads used in thread lifting are made of biodegradable monofilament materials, with PDO (polydioxanone), PLLA (poly-L-lactic acid), and PCL (polycaprolactone) commonly cited as representative examples.
These materials are introduced as differing in their breakdown speed and characteristics within the body, and some reports describe differences in lifting support strength and collagen stimulation properties depending on the material. However, specific figures and claims of superiority vary widely by source and are often difficult to confirm, so this article does not assert a ranking among materials.
Design factors such as thread thickness, presence and shape of barbs, and insertion depth and direction also vary widely by thread type. Which combination suits an individual's skin condition, degree of sagging, and desired goals is something that must be determined by a specialist after a direct examination.
Post-Procedure Course and Downtime
Immediately after thread lifting, you may experience swelling, bruising, and a sensation of tightness or a foreign body feeling along the paths where the threads were inserted. These reactions are generally known to subside over time, though the degree and duration vary from person to person.
In the early stage, the immediate physical traction effect is prominent, and afterward, the tissue response that emerges as the threads break down is described as progressing gradually. Since the degree and timing of perceived change also vary greatly by individual, rather than assuming a uniform timeline, it's important to follow the guidance of the treating physician.
Aside from swelling and bruising, rare side effects such as infection, thread exposure, and asymmetry may also be reported, so it's advisable to receive thorough explanation about the possibility of side effects before the procedure.
Why Skin Barrier Care Matters During Post-Procedure Recovery
After thread lifting, the skin barrier may become temporarily sensitive along the paths where the threads passed. During this period, care with low-irritation, sufficiently moisturizing products to help stabilize the skin can be helpful.
It's reasonable to take a staged approach: focusing on soothing and barrier care especially in the early period right after the procedure when swelling and sensitivity remain, and shifting toward deep hydration once recovery progresses further.
Post-Procedure Recovery Depends on Home Care
If you use home care products in line with these recovery stages, you might consider a staged approach: formulas focused on soothing and barrier care immediately after the procedure, followed by formulas emphasizing deep hydration during the recovery period once swelling has subsided. ABJU Cream is composed of 2 steps aligned with this recovery flow—STEP 1 Ultra Cera-Rich is designed to help soothe and care for the barrier of skin that has become sensitive right after the procedure, while STEP 2 Hydro Re-Boosting is designed to support deep hydration care during the recovery period. However, it should be understood accurately that cosmetics are not a medical means that affects the course of the procedure itself or the thread's absorption and collagen-generating response—they are, at most, a supportive concept for managing overall skin condition.
FAQ
- Which is best among PDO, PLLA, and PCL threads?
- While the materials are known to differ in breakdown speed and characteristics, there isn't sufficient evidence to conclude that one thread is definitively superior to another. The appropriate thread can vary depending on skin condition, degree of sagging, and treatment goals, so it's necessary to decide through consultation with a specialist.
- How long does the effect of thread lifting last?
- Because there is individual variation in how long the threads take to break down in the body and in the degree of tissue response, it's difficult to state a uniform duration. The degree of perceived change and how long it lasts can also vary from person to person.
- Are there things to be careful about during the downtime after thread lifting?
- Since this is a period when swelling, bruising, and a tight sensation may occur, it's advisable to avoid excessive massage or strong stimulation and to follow the cleansing and care methods guided by the medical staff. If abnormal symptoms persist or worsen, you should contact the clinic where you received the procedure.
- When can I start using cosmetics after the procedure?
- Since the timing for when it's safe to use products can vary depending on the condition and recovery speed of the treated area, it's safer to gradually introduce low-irritation products according to the guidance of your treating physician.
Medically reviewed by 아비쥬의원 의료진. (September 10, 2026)