As a key consumable in photoelectric beauty or medical treatment, the stability and reliability of photon cold gel quality are crucial. Any batch of products that have quality issues may affect the treatment effect, customer experience, or even trigger safety accidents. Therefore, it is the last line of defense to carry out strict and comprehensive inspections before the product is shipped, which is also a responsible expression to the customers and end-users.
The outgoing quality control (OQC) of Pingchuang Medical is not a simple random check, but a systematic inspection based on scientific sampling plans (such as those based on GB/T 2828.1 or other international standards) and detailed product quality standards. The inspection items cover multiple key aspects of the product, aiming to ensure that every batch released meets the preset high standard requirements.
Firstly, there is the inspection of the appearance and properties. This is the most intuitive inspection item. Inspectors will carefully observe the color, transparency, and uniformity of the gel, check for the presence of foreign matter, impurities, bubbles, and other defects. For photon cold gels, it is usually required to be colorless (or a specific light color), clear and transparent, with uniform and fine texture, free of visible bubbles and insoluble matter.
Secondly, there is the detection of physical and chemical indicators. This is the key to measuring the intrinsic quality of the product. The QC laboratory will use precise instruments to detect the key physical and chemical indicators of the samples. For example, a viscometer is used to measure whether the viscosity of the gel is within the specified range, as viscosity directly affects the feel and operational performance; a pH meter is used to measure the acidity or alkalinity, ensuring it is within the neutral or slightly acidic range suitable for the skin, in order to ensure mildness; for products with special requirements, it may also be necessary to detect indicators such as transmittance, conductivity, or thermal conductivity related to energy conduction.
Thirdly, there is the monitoring of microbiological limits. Since photon cold gels come into direct contact with the skin, microbial contamination is an important safety risk. Pingchuang Medical strictly controls the production environment (100,000-level clean room) and conducts microbiological limit checks before the finished products are released. The detection items usually include total bacterial count, total mold and yeast count, and possibly specific pathogenic bacteria (such as Staphylococcus aureus, Pseudomonas aeruginosa, etc.). It is ensured that the microbiological indicators meet the strict regulations of relevant laws or standards (such as the Hygiene Specification for Cosmetics or the relevant requirements for medical devices). For products claimed to be sterile, more stringent sterile checks are required.
The fourth is the inspection of packaging integrity. Inspectors will check whether the packaging containers (bottles, tubes, bags, etc.) of the product are damaged or leaking; whether the label printing is clear, complete, and accurate (including product name, specifications, ingredients, batch number, expiration date, manufacturer, warning statements, etc.); and whether the inner and outer packaging match. Ensure that the product is well-protected during transportation, storage, and use, and that information is transmitted accurately and without error.
All inspection processes have detailed operational procedures and record requirements. Inspection instruments and equipment are regularly calibrated and maintained to ensure their accuracy and reliability. Inspection personnel have undergone professional training and qualification certification. Only when all inspection items of a batch of products meet the specified quality standards and are approved by the Quality Assurance (QA) department, can the batch of products obtain the "qualified release" status, allowing it to be shipped and delivered to customers.
