Biodegradable Regenerative PLLA Dermal Filler Anti Sagging Firming For Dermal

1. Product Description

• PLLA (Poly-L-Lactide) is a high-purity medical aesthetic grade biodegradable polymer material, which is a mainstream endogenous collagen-stimulating raw material in global high-end anti-aging and medical beauty fields. Different from traditional single physical filling materials, it adopts bionic skin-friendly molecular structure, focusing on activating skin endogenous regeneration rather than simple external filling correction. With ultra-high tissue compatibility and stable controllable slow degradation performance, it can be completely decomposed and naturally metabolized by human subcutaneous tissues without foreign body residue, accumulation and long-term skin hidden risks. It can stably activate dermal fibroblast activity for a long time, continuously promote autologous collagen proliferation, effectively improve facial hollowness, soft tissue collapse, sagging and wrinkling problems, and realize natural, delicate and progressive long-term facial rejuvenation effect, which is widely used in high-end anti-aging skincare and medical aesthetic formula development.

2. Product Features

• Medical-Grade Biocompatibility: Adopts pure synthetic macromolecular structure without animal-derived ingredients, with ultra-low immunogenicity, non-toxic and non-allergenic. It will not cause skin irritation, inflammatory reaction and tissue rejection after application, fully meeting international medical aesthetic safety certification standards.
• Uniform Controllable Degradation: Possesses stable and regular molecular chain structure, realizing slow, uniform and controllable metabolism in subcutaneous tissues. It avoids rapid efficacy attenuation and premature structural failure, and maintains long-term and stable skin care and shaping performance.
• Endogenous Collagen Activation: Unique bionic polylactide molecular structure can continuously stimulate dermal fibroblast proliferation and activity, actively induce autologous collagen and elastic fiber regeneration, and fundamentally repair aging skin without artificial filling traces.
• High Purity & Stable Molecular Activity: Adopts multi-stage ultra-precision purification process, effectively removing residual monomers, macromolecular aggregates and microscopic impurities. The purified molecular activity is stable and durable, not easy to deactivate and deteriorate, suitable for large-scale and stable industrial formula production.
• Excellent Soft Tissue Fitting: Has flexible molecular ductility and good skin affinity, which can perfectly fit facial curved contours and loose soft tissues, form uniform and soft supporting tension, and avoid lumps, unevenness and foreign body sensation.

3. Technical Principle

• Subcutaneous 3D Bionic Support: After PLLA acts on subcutaneous loose and concave tissues, its stable macromolecular chain structure builds a soft and tough three-dimensional supporting framework, which can instantly fill tissue defects, prop up collapsed soft tissues, lift sagging skin, and optimize blurred facial contour boundaries.
• Fibroblast Activity Activation Mechanism: The unique ordered molecular arrangement of PLLA can continuously stimulate the vitality of dermal fibroblasts, accelerate the synthesis and proliferation of autologous collagen and elastic fibers, improve skin elasticity loss caused by aging, and activate skin basal regeneration ability.
• Dermal Collagen Network Reconstruction: It induces the ordered rearrangement and regeneration of new collagen fibers, repairs the collapsed and loose dermal support structure caused by long-term collagen loss, rebuilds a complete, tight and elastic three-dimensional skin network, and restores youthful skin tension.
• Slow Degradation & Natural Replacement: PLLA achieves uniform slow degradation in human tissues, and the degraded small-molecule substances are harmlessly metabolized by the body. The newly regenerated autologous collagen gradually replaces the polymer support structure, realizing organic integration with skin tissues and natural non-rigid anti-aging effect.
• Skin Microenvironment Optimization: The degradation products can improve subcutaneous microcirculation, relieve skin aging fatigue, uniform skin texture and tone, reduce dullness, and comprehensively enhance skin transparency and delicate texture.

4. Production Process

• Medical-Grade Raw Material Screening: Strictly select high-standard medical aesthetic grade PLLA raw materials, precisely screen molecular weight, monomer residue, purity and activity indicators, eliminate deteriorated and impure raw materials to ensure consistent batch quality foundation.
• Low-Temperature Bionic Polymerization Synthesis: Adopt low-temperature constant-pressure polymerization technology to optimize macromolecular chain arrangement and structure, improve biological activity and tissue affinity, and avoid molecular inactivation and performance degradation caused by high-temperature reaction.
• Multi-Stage Precision Purification & Filtration: Pass through multi-layer ultrafiltration and precision membrane filtration processes to thoroughly remove residual monomers, macromolecular aggregates and microscopic impurity particles, reaching high-purity medical aesthetic grade standard.
• Molecular Stabilization & Slow-Release Adjustment: Implement professional molecular modification and stabilization treatment, balance the degradation cycle and active release efficiency of PLLA molecules, ensure continuous and stable collagen induction ability, and avoid premature efficacy attenuation.
• Aseptic Dust-Free Filling & Batch Inspection: All production procedures are completed in Class 100 dust-free sterile workshop. After secondary sterile filtration, sealed filling is carried out, and strict batch sampling inspection is implemented to ensure sterile, safe and stable finished product quality.

5. Technical Parameters