Reaction time
Decrease · small
Improves alertness and attention
Literature evidence
Compound library
Vivy evidence dossier
L-Theanine + Caffeine
T2General Wellness
Read this entry as context, not instruction.
Evidence labels describe the material available in this reference entry. They do not establish that a compound is appropriate, effective, or safe for you. Inclusion is not a recommendation to use it.
Observed relationships
Biomarker context
Sleep latency
Increase · small
Caffeine delays sleep onset
Literature evidence
Cortisol (AM)
Increase · small
Caffeine stimulates HPA axis
Literature evidence
Acetylcholine
Increase · small
Cholinergic activation
Literature evidence
Keep the reference close
Track L-Theanine + Caffeine in context.
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