Way too many people on here are leaving reviews don't know anything about supplement manufacturing and labelling guidelines and it shows. Below, I'm going to provide a detailed review, if you want the short version, skip to the very bottom, look for "TLDR."Firstly, I would like to comment on a review stating that they changed their formula, since this is my field of occupation, I am very much qualified to speak on this matter.For one, they didn't change their formula, they updated the supplement facts as there were several updated FDA guidelines that all supplement manufacturers need to follow, especially if you're following GMP guidelines. And second, including all of these ingredients as a proprietary blend, as the name implies, protects their dosages, as it is very easy for someone off the street to provide a manufacturer a quantitative formulation, and knock it off, but also the dosages can no longer be freely stated on the label. Enough said.Per their website, they do follow ingredient testing, as GMP advises, so regarding the formulation and the formula itself, nothing is changed, chill out keyboard warriors.Let's talk about the product itself! The powder is very, for the lack of a better term, powdery, if you're not careful, it will get everywhere! The form is as it should be, like flour, just ignore the smell, that's what real EAA smells like.Taste: it's unflavored obviously, and awful as it should be. While you could spend a little more to get a flavored version from other sellers, I bought this one for it's amazing value, and in doing this, you have to accept the caveat of it being completely disgusting. So you definitely want to mix it with something, you can't take it straight from the spoon like creatine.Use: everyone has their own routine use for this supplement, personally I practice intermittent fasting, specifically a meal every 48 hours full of protein, and to improve protein synthesis I take this at morning and at night. Unfortunately, since I do fast, I don't have the luxury of mixing this with juice, and have to mix it with decaf coffee, first world problems right?Results: you can definitely tell this is 100% EAA, usually in the morning ghrelin is telling me that I'm hungry, and immediately after taking my EAA it will curb the hunger completely. For those trying to put on muscle, this is definitely a great addition to your routine. This has improved my performance and the gains in the mirror and scale are apparent!TLDR: The product formulation has been updated per new labeling guidelines to protect their proprietary blend, dosages were not changed. I highly recommend this product, especially if you practice fasting. If you're new to EAA, mix it with some juice or something to mask the natural bad taste. With a solid routine and thoughtful nutrition, you can expect this to be a great arsenal in your quest to more lean muscle mass.