Volume / Contour · Neck horizontal lines
Collagen stimulator PDLLA PLLA evidence for Neck horizontal lines
There is not yet enough PubMed evidence for this combination. The procedure exists, but research on this indication may be scarce.
Grade combines the quantity and quality of the research, while direction is a separate signal showing how the papers assess effectiveness.
Median year 2026 Last 5 years 100% Positive results 100%
Known in Korea as
Procedure and brand names vary, but the evidence above applies to the same procedure mechanism.
Key papers
tier_other Carbon Dioxide Gas-Assisted Subcision and PDLLA infusion for Horizontal Neck Lines.
Abstract summary (English) BACKGROUND: Horizontal neck lines (HNLs), also termed transverse cervical creases or "Venus rings," deepen with age due to dermal thinning, alterations in the superficial cervical fascia and retinacula cutis, and repetitive platysmal motion. Conventional treatments-including hyaluronic acid (HA) fillers, energy-based devices, and microneedling radiofrequency-primarily target texture and volume but may not adequately...
Journal Article
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