Proprietary Blend

A proprietary blend lists several ingredients under one total weight without disclosing how much of each is inside — which makes the actual dose of anything unverifiable, and often means the cheap, filler ingredients dominate while the marquee ones are a sprinkle. It is most common in pre-workouts and "recovery" mixes. Our stance is simple: a blend that hides its doses cannot be evaluated, so we flag it and prefer products that disclose every ingredient at its amount. Transparency is cheap for an honest formula and expensive for a padded one.