Smart drink ingredients often include substances such as DL-phenylalanine or L-phenylalanine, L-tyrosine, choline (trimethylaminoethanol), pyroglutamic acid, B vitamins, glucuronolactone, and DMAE (dimethylaminoethanol). These amino acids were claimed to have positive or enhanced effects on alertness, stress resistance and energy levels.
Smart drinks often include substances like DL-phenylalanine, L-phenylalanine, L-tyrosine, choline, pyroglutamic acid, B vitamins, glucuronolactone, and DMAE. These amino acids are claimed to have positive or enhanced effects on alertness, stress resistance, and energy levels.