If you want the studied form of beta-alanine without doing scoop math, ProLab is the pick. Each serving delivers 3,200 mg of CarnoSyn — precisely the dose used in the research — in capsules, which solves the two everyday annoyances of beta-alanine at once: there is no chalky unflavored powder to choke down, and it is easy to split the dose across the day to keep the harmless tingle minimal. The active is the patented CarnoSyn form used in most published trials, so you are paying for the same quality raw material as the #1 pick, just in a pre-measured capsule.
The trade-offs are honest and small: you swallow four capsules per serving, and you pay more per gram than a bulk unflavored tub. For convenience plus the right form at the right dose, it is an excellent number two.