L-theanine vs Tryptophan

Evidence-based comparison of L-theanine and Tryptophan — absorption, dosage, safety, and which is best for your needs.

Reviewed by: Supplement Hub Editorial Team · Category: Amino acid · Updated:

L-theanine

GABA modulation: Influences GABAergic inhibitory signaling; Sleep regulation: Supports neurotransmitters and pathways in

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Tryptophan

Serotonin modulation: Influences serotonin synthesis

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Detailed Comparison

L-theanineTryptophan
CategoryAmino acidAmino acid
MechanismGABA modulation: Influences GABAergic inhibitory signaling; Sleep regulation: Supports neurotransmitters and pathways inSerotonin modulation: Influences serotonin synthesis

Which Should You Choose?

L-theanine may be better if: GABA modulation: Influences GABAergic inhibitory signaling; Sleep regulation: Supports neurotransmitters and pathways involved in sleep; Anxiolytic pa

Tryptophan may be better if: Serotonin modulation: Influences serotonin synthesis