So let me tell you how this works ok? Raw ingredients come into our warehouse and are placed into a quarantine section of our warehouse, it literally is in a separate locked 10ft high fenced in cage so no mistake is ever made for it to end up in our general population of raw materials before it passes our clearances. Let's use for example WPC (whey protein concentrate), its bought from the dairy itself or its packaging mediary, it shows up at our warehouse and the dairy gives us their Certificate of Analysis along with all current specs with this product (or whatever raw material it is), the product is then put into our quarantine and many samples are taken from this delivery. We use the "10th sample method". What that means that we sample every 10th kg, bag or pallet. So if we get 1000kg of the same creatine batch from our manufacturer, every 100kg we pull a sample. If we get 500 bags of WPC, every 10th bag we pull a sample. These samples pulled are then blended together for an aggregate of the total batch. This sample is then either tested internally and/or sent to multiple different 3rd party labs we have contracted out. Side note, why do we use so many different labs? Because we also cross reference occasionally to make sure specs are coming back on par/same from one lab to the next. So we're not only testing our materials, we're also making sure our labs are legit. We test for purity, potency and identity. What does that mean? Purity to make sure the material doesn't have a dangerous microbe or poison that could make you sick. Potency, to make sure if something says its 90% protein or 99% extracted, etc. its is actually to spec. And Identity, to make sure the fermented glutamine we brought in, is actually fermented glutamine. These tests can take up to 10 days to clear. And once they clear, then the material is cleared from quarantine and put into our general pop. Additionally this isn't just for raw powder material, this goes for packaging, lids, jugs, bags, everything!