A thread lift uses absorbable sutures — most commonly polydioxanone (PDO) or poly-L-lactic acid (PLLA) — inserted beneath the skin through a fine needle or cannula. Barbed or cogged threads grip the tissue and allow it to be repositioned slightly upward; smooth threads provide no lift but stimulate collagen production along their path.
There are two distinct effects, and they arrive on different timescales. The mechanical lift is immediate but modest. The biological effect is gradual — the body's response to the dissolving material stimulates collagen over the following weeks, which is what produces the improvement in skin quality patients often notice at one to two months.
This is a treatment we position carefully, because it is the most oversold procedure in aesthetic medicine. Threads work genuinely well for mild laxity in patients with reasonable skin quality who want improvement without surgery. They do not replace a face lift. If your jowls are established and your midface has descended, threads will disappoint you, and we would rather say so at consultation than take the booking.