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L-Tyrosine
L-Tyrosine pharma grade · 250g powder
£39.01£4.86
margin £0.00
What our £4.86 is made of ↓Hide breakdown ↑
Active ingredient£2.85
Capsule / carrier£0.79
Bottle, label, seal£0.72
Fill, cap, batch test£0.50
Total cost£4.86
MARGIN £0.00
The dose
What we give
344mg daily
Dose used in trials
478mg daily (trial range)
The trick
'Nootropic stack' is theanine and caffeine you could buy for pennies, rebranded.
Evidence
B
Some human evidence; the dose or effect is less settled.