Performance CognitiveHEAD-TO-HEAD

L-TheaninevsL-Tyrosine

CLINICAL COMPARISON // CHEMGRADE DATABASE

Compound Profile Comparison

Metric

L-Theanine

L-Tyrosine

Chemical ID

C7H14N2O3

Amino Acid

Bio-Availability

High (Water Soluble)

Medium

Half-Life

3 Hours

2-3 Hours

Vendor

Nootropics Depot

NOW Foods

Price

$15.99

$12.99

Goal-by-Goal Analysis

Performance Cognitive

L-Theanine

Dosage200mg (+100mg Caféine)

Timing30 min avant le travail

Efficacy Score

9.2/10

⚠️ Pas avant de dormir.

L-Tyrosine

Dosage500-1000mg

TimingÀ jeun (Matin)

Efficacy Score

8.4/10

⚠️ Ne pas mélanger avec protéines.

Verdict

L-Theanine scores 0.8 points higher for cognitive (9.2 vs 8.4). High (Water Soluble) bioavailability gives it a pharmacokinetic advantage.

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Acquire L-Theanine

$15.99

Vendor: Nootropics Depot

BUY L-THEANINE

Acquire L-Tyrosine

$12.99

Vendor: NOW Foods

BUY L-TYROSINE

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* This comparison is for educational purposes only. ChemGrade does not provide medical advice. Efficacy scores are based on aggregated clinical literature and are not a substitute for professional guidance.