Quality assurance We’re proud to be a certified Informed Manufacturer, a global quality assurance program operated by LGC for facilities that manufacture and supply sports nutrition products and ingredients, developed to minimise the risk of banned substance contamination. Optimum Nutrition’s Elite range is subject to a finished goods batch testing & certification scheme with LGC. Product batches ring-fenced for Elite consumption are embargoed whilst samples are sent for banned substance testing, and only released once approval has been given, and a corresponding batch-test certificate can be supplied to the customer. If ordering from Optimum Nutrition’s Elite range, you will receive an e-receipt containing a link to the batch-test certificate(s) that corresponds with your order. Alternatively, you can download your batch-test certificate from our website, using the batch number found on the product packaging.