Principles of Treatment
- Mechanism of action: the effect of threads relies on two complementary mechanisms: an immediate mechanical repositioning effect on the tissues and a progressive biological action through stimulation of collagen synthesis around the thread.
- Types of threads: resorbable threads are used today (e.g. PDO — polydioxanone, PCL — polycaprolactone, PLLA — polylactic acid) with different profiles (smooth mono, cone, or barbed) depending on the goal — lifting or simple tightening.
- Areas treated: threads can be used at the level of the cheeks, temples, facial oval, jawline, neck, and sometimes for a mild brow lift.
- Personalisation: the choice of thread type, number, and anchoring points is adapted to the patient's morphology, age, and expectations. The prior consultation defines an individualised treatment plan.
Session Process
- Prior consultation: discussion of the reasons for consultation, clinical tissue examination, explanation of alternatives, risks, and development of a personalised plan. Pre-operative photographs and informed consent are obtained.
- Anaesthesia and preparation: placement is performed under local anaesthesia or with a topical anaesthetic cream. The skin is disinfected and marked.
- Technique: the practitioner inserts the threads using needles or cannulas depending on the chosen technique. The procedure generally lasts 30 to 60 minutes depending on the extent of the area treated.
- Comfort: a feeling of tension and mild discomfort may be felt during the procedure. Measures to limit discomfort (local anaesthesia, precise movements) are implemented.
- Immediate follow-up: symmetry and entry point checks, explanation of home care instructions.
Post-treatment Course and Results
- Immediate post-treatment effects: bruising, swelling, mild local pain, sensitivity, or tightness are common in the days following placement. Small palpable irregularities may be felt.
- Onset of results: a lifting effect is often visible immediately; improvement may become clearer over the following weeks thanks to collagen stimulation.
- Average duration: longevity varies depending on the type of thread and individual characteristics. Threads resorb progressively — the mechanical effect decreases over time while the biological effect (remodelling) may persist for several months. Durations generally range from several months to over a year depending on the material.
- Variability: the intensity and duration of the benefit differ from person to person; regular follow-up allows the management to be adjusted.
Contraindications and Precautions
- Main contraindications: pregnancy and breastfeeding, active skin infection in the area to be treated, uncontrolled autoimmune disease, severe healing disorders, inadequately managed anticoagulant treatment, known allergy to the components used.
- Precautions: inform the practitioner of all ongoing medical treatments, history of hypertrophic scarring, or infectious reactions. The practitioner will give specific post-treatment instructions (avoid local massages, manipulation, intense physical effort for 48–72 hours, significant heat exposure for a few days, etc.).
Risks and Possible Side Effects
- Common and transient effects: bruising, swelling, local pain, sensitivity, small palpable irregularities or protrusions under the skin.
- Less frequent risks: local infection, thread migration or partial extrusion, asymmetry, insufficient results, foreign body granuloma, undesirable scar.
- Rare but serious complications: nerve damage, prolonged inflammatory reaction, skin necrosis (rare). Risks will be explained and contextualised during the consultation and consent process.
- Information and management: all these elements are explained before the procedure; management and monitoring measures are in place in case of complication.


