RAINBOW 3D COG 21G90-L

RAINBOW® 3D COG 21G90-L is a biodegradable PDO (polydioxanone) lifting thread with 360° helical barbs designed for non-surgical facial rejuvenation and skin tightening. The 21G90-L format refers to a 21-gauge cannula with a 90 mm length, preloaded with a barbed 3D cog thread that provides strong anchoring in all directions for enhanced lifting effects. Once inserted into the subcutaneous tissue, the thread stimulates collagen production, improves skin elasticity, and delivers an immediate mechanical lift, with long-term skin regeneration benefits. The product dissolves naturally within 6–12 months, leaving behind newly formed collagen that can prolong the lifting effect for up to 1–2 years.

• Type: PDO thread with 360° barbs
• Cannula: L-type (smooth, low-trauma insertion)
• Application areas: Jawline, cheeks, nasolabial folds, lower face
• Duration of effect: 12–24 months

RAINBOW 3D COG 21G90-L is inserted into the subdermal or SMAS layer using a 21G L-type cannula to minimize bruising and trauma. It provides multi-directional anchoring for strong, natural-looking lifting results.

• Needle/cannula type: 21G x 90 mm L-type cannula
• Thread type: PDO 3D cog with 360° barbs
• Injection depth: Subcutaneous / SMAS layer
• Application areas: Cheeks, jawline, jowls, lower face
• Technique: Linear or fan technique with symmetrical thread placement
• Procedure time: Approx. 30–45 minutes
• Anesthesia: Topical or local lidocaine is recommended

RAINBOW 3D COG threads are indicated for facial lifting, skin tightening, and volume restoration. They are ideal for patients with mild to moderate skin laxity, particularly in the jawline and mid-face.

Indications:

• Sagging skin in the lower face and jawline

• Loss of facial contour
• Nasolabial folds
• Mid-face lifting
• Non-surgical V-line shaping

Contraindications:

• Pregnancy or breastfeeding
• Autoimmune disorders
• Bleeding disorders or anticoagulant use
• Active infection or inflammation in treatment area
• Allergy to PDO or surgical sutures

Side Effects:

• Bruising, swelling, or tenderness at insertion sites
• Mild asymmetry or irregularity (usually temporary)
• Infection, thread extrusion, or skin dimpling (rare)
• Nerve damage (extremely rare if technique is incorrect)

RAINBOW 3D COG threads are made of polydioxanone (PDO), a biocompatible and biodegradable material widely used in surgical sutures. It promotes collagenesis, skin healing, and gradual tissue remodeling.

• Main material: PDO (Polydioxanone)
• Thread design: 360° helical barbs for multidirectional anchoring
• Thread size: USP 1-0 or 2-0, depending on variant
• Cannula: 21G L-type, designed for smooth, safe insertion

Each unit of RAINBOW 3D COG 21G90-L comes preloaded in sterile blister packaging ready for single-use in a medical setting. All threads meet international safety and quality standards.

• 1 sterile blister pack containing:
  • 1 PDO thread with 360° barbs
  • Pre-mounted on a 21G x 90 mm L-type cannula
• CE-certified, ISO13485, GMP-compliant
• Labeled for professional use only

RAINBOW threads are generally well-tolerated when administered by trained professionals. Most side effects are mild and transient, resolving within a few days.

Common Side Effects:

• Mild pain or discomfort
• Bruising, swelling, redness
• Temporary skin irregularities or tightness

Rare Complications:

• Thread migration or extrusion
• Infection or abscess formation
• Hematoma
• Allergic reaction to PDO (extremely rare)

Proper storage ensures the integrity and sterility of the PDO thread until use. Avoid exposure to light, heat, or humidity.

• Storage temperature: 2°C to 25°C (36°F to 77°F)
• Keep dry and away from sunlight
• Do not use if package is damaged
• Sterile, single-use only
• Do not resterilize or reuse