Amino Acids & Precursors
Amino acids and neurotransmitter precursors that support mood, sleep, and cognitive function — 5-HTP, L-tyrosine, GABA, L-theanine, and more.
5-HTP
A direct serotonin precursor derived from Griffonia simplicifolia seeds, used for mood support and sleep improvement.
Amino Acids PrecursorsResearch-backed
Onset: 30-60 min (oral)Duration: 4-6 hours
GABA
The primary inhibitory neurotransmitter taken as a supplement for relaxation and anxiety reduction, though blood-brain barrier crossing is debated.
Amino Acids PrecursorsCommunity consensus
Onset: 15-30 min (oral)Duration: 2-4 hours
L-Tyrosine
A dopamine and norepinephrine precursor amino acid used to support focus and mental performance under stress.
Amino Acids PrecursorsResearch-backed
Onset: 30-60 min (oral)Duration: 3-5 hours