The neck. It’s the area so many of us focus on last — and the one that can give away our age the fastest. Dana is tackling that head-on in this video, and she’s bringing in one of her favorite tools to do it: AestheLine HA PDO Screw threads from Acecosm. The goal is simple — lay down a solid bed of collagen-stimulating threads across the full neck area, from the perimeter in, and let the magic happen over time.
Whether you’re dealing with turkey neck, sagging skin from weight loss, tech neck from years of looking down at a screen, or just the natural aging process — this approach is all about creating a foundation. Dana uses the 29G 25mm screw threads because they’re easy to place, they cover good surface area, and the HA coating makes them glide in beautifully. She shares her go-to technique (hint: holding the skin taut is everything) and walks through exactly how she layers threads across the neck for maximum coverage.
And a fun fact: Acecosm isn’t just a vendor Dana trusts — they’re actually a developer she’s collaborated with directly. She worked with them on the CSL cog thread design for about six months, going back and forth on the concept until it was exactly right. When she tells you these are quality threads from a company that takes the craft seriously, she means it from personal experience.
Why the Neck Needs Its Own Collagen Strategy
The neck ages differently than the face — the skin is thinner, it moves constantly, and it rarely gets the same attention in our skincare routines. Horizontal lines, vertical bands, loose skin, and that dreaded turkey neck effect all come from the same underlying issue: collagen loss and laxity in the tissue. PDO threads address this directly by giving your skin a reason to build new collagen right where you place them.
Dana’s approach here is strategic: start from the perimeter and work inward, making sure the full surface area of the neck is covered. She even notes that if she could get threads to the back of her neck, she would — that’s how committed she is to the full-coverage collagen approach. The threads dissolve over about 6 months, but the collagen they stimulate keeps building and improving long after they’re gone.
AestheLine HA PDO Screw threads — 29G 25mm, sterile single use, 20 per pack.
Why Screw Threads? The Spiral Makes the Difference
Not all PDO threads are created equal — and for the neck, screw threads have a real advantage. The spiral yarn configuration gives them a larger surface area than a standard mono thread, which means more contact with the surrounding tissue and a more pronounced collagen-stimulating response. They also have longer biodegradation times than monofilaments, so they keep working for longer before dissolving.
The HA (hyaluronic acid) coating on these AestheLine threads is what makes them glide in so smoothly. Dana says she finds the 29G 25mm screw “the easiest laying threads ever” — and that ease matters when you’re doing a lot of them across a full area like the neck. The HA also adds a hydration benefit right at the placement site, which is a nice bonus for thin, dry neck skin.
The spiral configuration gives screw threads more tissue contact — and more collagen stimulus — than standard mono threads.
The One Technique Tip That Changes Everything
If Dana had one trick to share about laying threads, it’s this: hold your skin taut. Pull the skin tight with one finger as you insert the thread, and you’ll feel the difference immediately — the thread slides in on a smooth, even plane instead of fighting resistance. It makes placement easier, more precise, and more comfortable overall.
She layers the threads in a grid-like pattern, working rows from one direction and then crossing with another, until the full surface area is covered. For the neck specifically, she likes to go heavy — lots of small, easy-to-place threads across the whole area, then let them do their work. A follow-up mesotherapy treatment about a week later (not back-to-back — she prefers to give her body time to respond to each treatment) helps amplify the results further.
AestheLine — sterile single use PDO threads, KFDA cleared, made in Korea by M.BASE Co., Ltd.
AestheLine HA PDO Screw 29G 25mm at Acecosm.com
Sterile single-use PDO screw threads with a hyaluronic acid coating for smooth, easy placement. The spiral yarn configuration gives more tissue contact than standard mono threads — stimulating more collagen and delivering a more pronounced, longer-lasting result. KFDA cleared, made in Korea. 20 threads per pack.
Key Features:
- Polydioxanone (PDO) spiral screw construction — the twisted shape increases surface area contact with surrounding tissue, driving a stronger collagen response than monofilament threads
- Hyaluronic acid coating — makes threads glide in smoothly with minimal resistance; adds localized hydration at the placement site
- 29G 25mm gauge and length — Dana’s preferred spec for neck work; easy to place, good coverage, and suitable for most areas of the face and body
- Longer biodegradation time — dissolves more slowly than mono threads, keeping the collagen stimulus active longer
Benefits:
- Stimulates collagen production for firmer, tighter neck skin
- Helps address turkey neck, sagging, and tech neck
- Results continue improving after threads dissolve (~6 months)
- Sterile, single-use, KFDA cleared — professional quality for trained at-home use
About Acecosm.com
Acecosm is one of Dana’s most trusted sources for professional-grade Korean aesthetic products — threads, exosomes, skin boosters, and more at prices that make professional results accessible.
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Disclaimer: This post is for informational purposes only and is not medical advice. AestheLine HA PDO Screw threads are intended for use by trained individuals familiar with at-home aesthetic procedures. Always consult a licensed professional if you have concerns about thread placement or any injectable treatment.
