Evaluation Controlling Quality Quarantine in Place Finished Product Testing Principles of Quality Assurance Quality Control and Quality Assurance Over the years the name Natrol has become synonymous with quality. In order to maintain our standards, Natrol has had to continually evolve to meet the supplement industry and our company's more stringent guidelines. This is why Natrol operates out of an 80,000-sq.
Quality begins far from our manufacturing facility.
It starts at the source of our products. In order to control the quality from a distance, Natrol implemented a validation program for our suppliers, which includes an initial inspection of their facility. During this validation period, we become aware of their quality control measures, which include the growing conditions of crops or the synthesis process of synthetic material. This process begins before we decide to purchase material. A sample is requested by Natrol and must be accompanied by its Certificate of Analysis.