COG and PDO threads are two types of absorbable threads used in non-surgical facelift and skin tightening procedures, commonly known as a thread lift. They work by lifting and stimulating collagen production in the skin.
PDO Threads (Polydioxanone)
What they are: Biodegradable sutures used in medical procedures (like heart surgery) for decades.
Purpose in aesthetics: Smooth PDO threads are inserted under the skin to tighten, lift, and stimulate collagen.
Benefits:
- Improves skin texture and firmness
- Reduces fine lines and wrinkles
- Can be used in the face, neck, jawline, under eyes, and even body areas
Types of PDO Threads:
- Mono (smooth) – for collagen stimulation and skin tightening
- Screw – for volume in sunken areas
- COG – barbed threads for lifting (explained next)
COG Threads (Barbed PDO Threads)
What they are: A type of PDO thread with tiny barbs or hooks that anchor into the tissue.
Purpose: Designed for a mechanical lift—they physically pull sagging skin upward and hold it in place.
Best for:
- Jawline and jowl lifting
- Cheek lifting
- Eyebrow or neck lifting
How they work: The barbs grip the skin and reposition it, while also stimulating collagen as they dissolve over time (usually 6–12 months).
What Happens After the Procedure?
Threads gradually dissolve over 4–6 months, but collagen continues to rebuild for up to a year. Results can last 12–18 months, depending on skin condition and lifestyle.
Prices
COG thread lower face lift – £750
COG thread jaw line – £450
PDO thread treatment – £175 per area