The zen switch.
Effective Dose
100-200mg
Onset
Fast
Cost
Budget
Cycle
As needed
7 things you need to know
What it does
The zen switch.
Worth it?
8/10. Proven to modulate caffeine effects and reduce stress.
How much to take
100-200mg
Price
Cheap (under $15/month)
How fast it works
You feel it within an hour
Safety
Safe for most people at recommended doses
What people say
Calm, centered focus.
AMINO_ACID
"Calm, centered focus."
Research backing for this ingredient
Several studies show positive results
45+
Yes
Strong agreement among researchers
Synergistic improvement of attention and focus with caffeine
Systematic review of 11 RCTs
Reduction of acute stress and anxiety symptoms
Systematic review of 9 RCTs
Promotion of relaxation via increased Alpha brain waves
Multiple EEG studies (n=15-50)
"Proven to modulate caffeine effects and reduce stress."
Found in green tea, this amino acid increases alpha brain waves—relaxed alertness.
Products below minimum dose are likely ineffective
When
Any time
How
100-200mg
Food
With or without food
Effects within minutes to hours
As needed
Check for specific interactions.
L-Theanine is categorized as a amino acid.
Scientific consensus score: 8/10.
Evidence quality: MODERATE.
Add L-Theanine to your stack analyzer or compare it with other ingredients.
Not medical advice. Always consult a healthcare provider.