I would personally avoid all products that say "propiertary blend" on their labels because you will never really know what is actually in there, and what you are paying for. Instead, better opt for a product that is made only with BCAA's and no additives at all. This would be a much healthier and simpler alternatives, which will most probably be the cheapest as well. Personally, I use GEAR by N2BM, and I really like it, as it has a very good ratio of amino's, and there is nothing else in the product but amino acids.