Amino acid
amino acids and their close derivatives.
2 compounds · filter the full catalogue by this class
- CreatineBioenergetic
Creatine is one of the most researched sports supplements. It is best known for building strength and muscle, and is increasingly studied for the brain. Meta-analyses of randomised trials find small-to-moderate improvements in memory, attention and processing speed. The effects on memory are largest in older adults. It is well tolerated at 3 to 5 g a day.
Established - L-TheanineAmino acid
L-theanine is an amino acid found almost only in tea. Taken at 200 to 400 mg a day, it may reduce stress and anxiety in people under stressful conditions. Its best-known use is alongside caffeine, where the pair improves attention switching more than either alone. A 2025 meta-analysis found small improvements in subjective sleep.
Human RCTs