N-Acetyl Carnosine Drops

Before the formulation of N‑Acetyl Carnosine Drops, incoming dipeptide crystalline feedstock is subjected to tiered discriminatory screening and multi-modal analytical qualification. Morphological characterization via polarized microscopy and laser granulometry is implemented to identify crystalline polymorphism, amorphous domains and macro-agglomerates. Orthogonal assays including reversed-phase HPLC, mass spectrometric identification, ICP-MS elemental profiling, residual solvent testing and microbial limit enumeration are deployed to authenticate molecular identity, quantify assay potency, delineate impurity spectra and exclude exogenous heavy-metal and bioburden contaminants. Lots failing any acceptance threshold are segregated and rejected.

Following the completion of raw material screening, particle comminution, solid-phase homogenization, gradient vacuum desiccation and fluidized bed granulation, the refined N-Acetyl Carnosine granular precursor enters the core sterile purification and closed filling procedure. Given the thermolabile conformational characteristics of dipeptide molecular structure, conventional thermal sterilization modalities are completely abandoned to prevent peptide chain hydrolysis, molecular isomerization and irreversible attenuation of biological activity.The standardized sterile treatment adopts a dual-coupled decontamination system integrating environmental sterile isolation and terminal physical sterilization.

This hierarchical interception mechanism completely removes residual particulate impurities, microbial propagules and heat-source endotoxins, achieving molecular-grade sterile purification of the liquid system.

Post-sterilization solution samples are subjected to orthogonal microbial limit verification, endotoxin detection and physicochemical parameter recalibration to confirm the stability, sterility and safety of the sterile stock solution.Qualified sterile liquid materials are immediately delivered to fully automated closed aseptic filling equipment via sterile sealed pipelines, realizing non-contact, constant-pressure and quantitative isobaric filling.

In terms of workshop environmental disinfection, the production area implements hierarchical sterile management. The filling core area and batching sterile area adopt periodic vaporized hydrogen peroxide (VHP) closed disinfection technology. VHP gas can penetrate all corners of the workshop and equipment gaps, efficiently kill bacteria, fungi, spores and other harmful microorganisms, and completely eliminate microbial contamination sources in the production environment. Compared with traditional ultraviolet disinfection, VHP has no dead angles, no microbial drug resistance, and no residual impact on peptide solution activity. After each disinfection cycle, the workshop conducts gas replacement and sterile detection, and can only be put into production after reaching the standard sterile level.

All disinfection and passivation processes form standardized operation SOP and detection records, and the equipment can only be put into use after passing the sterile verification test, ensuring that no cross-contamination occurs in different production batches.

The core terminal sterilization link of finished products adopts international standard 0.22μm hydrophilic sterile membrane integral filtration technology.The filter membrane has precise pore size uniformity and high microbial interception efficiency, which can completely intercept all bacteria, yeast, mold and particulate microorganisms in the peptide solution without destroying the molecular structure and biological activity of N-acetyl carnosine.

All packaging bottles, dropper accessories and outer packaging materials are subjected to independent ultraviolet sterilization and sterile dust removal treatment before use, and are stored in a closed sterile turnover box to ensure the sterility of packaging contacts.After the finished products are filled and sealed, batch microbial limit sampling and inspection are carried out, including total aerobic bacteria count, mold and yeast count and pathogenic bacteria screening. Only products that meet the microbial safety standards can be released from the factory, and the test results are uniformly recorded in the official COA quality report.