ISO 22716 GMP Audit Checklist: Preparing Your Contract Manufacturer
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When you entrust your brand to a contract manufacturer, you are legally responsible for the safety and quality of the products they produce. ISO 22716 β the international standard for Cosmetic Good Manufacturing Practices β provides the framework for evaluating manufacturing quality. But reading the standard isn’t enough; you need to know what to look for when you walk the factory floor.
Pre-Audit: Documents to Request
Before visiting the facility, request: ISO 22716 certificate (verify on the certifying body’s website), most recent audit report, organizational chart of the quality unit, list of all raw material suppliers, and a sample batch manufacturing record (redacted). If the manufacturer is reluctant to share these, that is your first red flag.
Walkthrough Checklist: 12 Critical Points
1. Raw Material Receiving Area
Is there a designated quarantine area for incoming materials? Are materials labeled with receipt date, supplier, lot number, and status? Is there a sampling procedure visible? Raw material control is the first line of defense β if it’s weak, everything downstream is compromised.
2. Raw Material Storage
Are temperature and humidity monitored and recorded? Are materials stored off the floor on pallets or shelving? Is there FIFO (First-In-First-Out) inventory rotation? Check for expired materials on shelves β this indicates poor inventory management.
3. Weighing and Dispensing
This is the highest-risk area in any cosmetic manufacturing facility. Look for: dedicated weighing room with controlled access, calibrated balances with current calibration stickers, clean weighing tools for each material, and a second-person verification system. If you see open containers of raw materials or shared scoops, walk away.
4. Water System
Water is typically the largest ingredient by volume in cosmetic products. Ask to see: the water treatment system (RO, DI, or distillation), the most recent water quality test results (microbial and chemical), the sanitization schedule for the water system, and the piping diagram (dead legs in piping are microbial breeding grounds).
5. Production Area
Look for: physical separation between different production stages, positive air pressure in filling areas, documented cleaning between batches (check the cleaning logs), and dedicated equipment or validated cleaning for allergen-containing products. Open doors between “clean” and “dirty” areas are a red flag.
6. In-Process Quality Control
Ask: “At what points do you check quality during production?” The answer should include: raw material verification before use, in-process checks (pH, viscosity, appearance) at defined intervals, filling line checks (fill weight, seal integrity), and finished product sampling per AQL (Acceptable Quality Limit) standards.
7. Microbiology Laboratory
Walk the micro lab. Ask to see: the most recent plate count results for finished products, the incubator temperature logs, media preparation records, and the schedule for environmental monitoring (air sampling, surface swabs). An unkempt micro lab is a serious red flag.
8. Stability Testing Program
Ask: “What is your stability testing protocol?” The answer should include: accelerated testing (40Β°C/75% RH for 3 months minimum), real-time testing (25Β°C/60% RH for shelf-life duration), photostability testing for UV-sensitive products, and packaging compatibility testing. If they only do “room temperature observation,” they are not following ISO 22716.
9. Documentation and Traceability
Ask to see a completed batch record. It should include: every raw material with lot number and quantity, every processing step with time, temperature, and operator initials, in-process QC results, and finished product release signature. If batch records are incomplete or hand-written on scraps of paper, the quality system is broken.
10. Non-Conformance and CAPA System
Ask: “What happens when something goes wrong?” Look for: a documented non-conformance procedure, a Corrective and Preventive Action (CAPA) log, root cause analysis for significant deviations, and trend analysis of quality data. If the answer is “nothing ever goes wrong here,” they are either lying or not detecting problems.
11. Training Records
Ask to see training records for production operators. Every operator should have documented training on GMP, hygiene, and their specific job function. Training should be refreshed annually. If training records don’t exist or are obviously fabricated, quality is not being managed.
12. Pest Control and Housekeeping
Look at the corners, under equipment, and behind doors. Is there evidence of pest control (bait stations, inspection logs)? Are floors, walls, and ceilings clean and in good repair? Poor housekeeping almost always correlates with poor quality control.
Red Flags That Should Stop the Audit
- Refusal to allow photography (of equipment, not formulations) during the tour
- Inability to produce batch records on request
- Evidence of pest activity (droppings, open food in production areas)
- Expired raw materials in active storage
- Quality manager unable to answer basic questions about their own system
A thorough GMP audit takes 4-6 hours. It is the most valuable time you will spend in your brand’s development. The manufacturer who welcomes your audit and answers your questions transparently is the one you want as a partner.
SkincareFactoryOEM Team