Really love this stuff before every run. There’s enough caffeine to keep me focused but not give me gut issues. I know the creatinine and EAA’s are there for my body to use as needed, ensuring I’m giving myself the best chance at a quick recovery for my back to back training days. Since starting on these aminos, I’ve felt stronger and been able to sustain my faster paces even as the temperature is rising in the south Florida summer. Running and training 6x week at 44 is tough, but I honestly feel Perform has given me the edge I need to quickly build back up my muscles. I’m a lean mean running machine with plenty of energy left to do my day. Just crushed my Half Marathon time in a race last week and have big goals for my Full Marathon in September. I take Perform pre-run and will make extra to sip on during my long run and interval days. I use the Life formula in the afternoons and on my day off.