Charmost® Ultra-D Line is designed for subcutaneous injection and facial contouring applications.

Indications & Treatment Protocol
Ultra-D Line is a 24 mg/ml BDDE cross-linked hyaluronic acid (HA) filler formulated for subcutaneous placement. It is indicated for cheek and chin augmentation, jawline contouring, facial sculpting, hand volume restoration, and other deep-volume applications.
| Protocol Parameter | Value |
|---|---|
| HA concentration | 24 mg/ml, BDDE cross-linked |
| Injection depth | Subcutaneous |
| Recommended needle | 23G × 2 |
| Particle size | 0.50 – 1.25 mm |
| Expected duration | 8 – 12 months |
| Touch-up interval | 8 – 12 months, per physician assessment |
A treatment session typically takes 20–40 minutes depending on the number of areas treated. The structural lift is visible immediately and settles within 1–2 weeks. Standard aftercare applies: avoid pressing the treated area for 24 hours, skip strenuous exercise, alcohol, and heat exposure for 24–48 hours, and protect the skin from sun during the first week.
Mechanism of Action
Hyaluronic acid is a naturally occurring, water-binding glycosaminoglycan in human tissue. In Charmost® Ultra-D Line, HA is cross-linked with BDDE to resist enzymatic degradation, allowing the gel to remain in the subcutaneous plane for months.
The largest particle size in the Charmost® filler range (0.50–1.25 mm) provides maximum projection and structural support. This makes Ultra-D Line suitable for redefining facial contours and restoring volume in deep planes, where softer fillers would not provide enough lift. Its high gel cohesiveness helps maintain shape under the mechanical load of facial expression and gravity.
HA fillers are also reported to stimulate fibroblasts and support collagen remodeling over time. Because the product is HA-based, it can be dissolved with hyaluronidase if correction or reversal is needed.
How Ultra-D Line Compares
| Product | Concentration | Particle size | Injection depth | Needle | Duration |
|---|---|---|---|---|---|
| Deep Line | 24 mg/ml | 0.28 – 0.50 mm | Deep dermis | 26G | 8 – 12 months |
| Ultra-D Line | 24 mg/ml | 0.50 – 1.25 mm | Subcutaneous | 23G | 8 – 12 months |
| 10ml / 20ml | 24 mg/ml | 0.50 – 1.25 mm | Subcutaneous | 23G | 8 – 12 months |
Ultra-D Line is the deepest, most projecting option in the standard Charmost® filler range. Choose it for jawline contouring, cheek and chin volumizing, and hand restoration; for large-volume body shaping, the 10ml/20ml and 50ml formats are available.
Treatment Areas
- Cheek augmentation
- Chin augmentation
- Jawline contouring
- Facial contouring
- Hand volume restoration
FAQ
1. How long does the effect of Ultra-D Line last?
Results typically last 8–12 months for most patients. Because it is placed in the subcutaneous plane and degrades slowly, the effect can be longer-lasting than superficially placed fillers.
2. Is Ultra-D Line suitable for jawline contouring?
Yes. Its large particles and high projection make it a common choice for jawline and chin contouring, providing a defined structural result.
3. How is Ultra-D Line different from Deep Line?
Deep Line is injected into the deep dermis (particles 0.28–0.50 mm); Ultra-D Line is injected subcutaneously with larger particles (0.50–1.25 mm) and is intended for deeper facial planes and contour sculpting.
4. What volumes is Ultra-D Line available in?
Ultra-D Line is available in 1ml/2ml syringes and in large-volume formats: 10ml/20ml for body shaping and 50ml for maximum-volume enhancement.





