Cross-linked Hyaluronic Acid Ultra-Deep Structural Filler

1. Core Definition & Product Positioning

Cross-linked Hyaluronic Acid UltraDeep is an ultra-high crosslinking, high-density monophasic gel dermal filler designed for supraperiosteal or deep subcutaneous injection. The term "UltraDeep" indicates its positioning for ultra-deep structural support and facial bony contour shaping. It features an ultra-dense gel structure with extremely strong support capacity, mainly used for remodeling facial bony contour and correcting severe volume loss, providing stable long-term structural support without deformation or displacement.

2. Key Physicochemical Properties

This product boasts an ultra-high crosslinking degree of over 90%, with a dense three-dimensional network structure that enhances anti-degradation and anti-displacement abilities. The hyaluronic acid concentration is around 25 mg/mL, presenting high viscosity and elasticity, ensuring precise injection control and stable postoperative shape. Its raw material is 100% non-animal derived microbial fermentation hyaluronic acid, with extremely high biocompatibility and almost no immunogenicity. It adopts patented high-density crosslinking technology, with strict control over crosslinking agent residue, which is far below the medical safety standard. The elastic modulus (G′) is significantly higher than other fillers, and the in vivo half-life is 18 to 24 months, depending on individual metabolism, injection site and dosage.

3. Core Advantages

It has ultra-high cohesion and density, providing strong bony contour support, which is suitable for weight-bearing and dynamic facial areas. The ultra-high crosslinking degree ensures extremely long-lasting efficacy, reducing the frequency of supplementary injections. It has low water absorption and minimal postoperative swelling, with fast recovery and natural-looking results. The high-density gel structure enables precise shaping, and the injection controllability is strong, facilitating doctors to achieve ideal contour effects. It is compatible with human tissues, and can be completely degraded by hyaluronidase without residual, ensuring safety.

4. Typical Application Scenarios

It is mainly used for facial bony contour remodeling, such as zygomatic elevation and shaping, chin extension and protrusion correction, and jawline bony contour refinement. It is also effective in correcting severe facial volume loss, including severe temporal depression, deep cheek atrophy and severe nasal base depression. Additionally, it can provide structural support for facial ptosis, improving facial sagging and restoring a three-dimensional and youthful contour.

5. Indications & Contraindications

Indications

It is applicable to adults in need of facial bony contour remodeling, severe volume loss correction, and those pursuing ultra-long-lasting (18-24 months) ultra-deep structural filling effects.

Contraindications

It is contraindicated for individuals allergic to hyaluronic acid, lidocaine or crosslinking agents, patients with injection site infection, inflammation, coagulation disorders or autoimmune diseases. Pregnant or lactating women are prohibited from using it.

6. Injection & Safety Tips

The injection layer must be accurately delivered to the supraperiosteal layer; in special cases, it can be injected into the deep subcutaneous tissue, and superficial injection is strictly prohibited to avoid nodularity and poor shaping effect. The injection technique should adopt layered and segmented injection with small dosage, and avoid excessive single-point injection. Operators must have professional training and rich experience to prevent vascular and nerve damage. For post-operation care, strictly avoid touching or pressing the injection site within 48 hours, keep the site clean, avoid high-temperature environments and intense exercise for 2 weeks, and follow up with doctors regularly.