Cognitive OutputHEAD-TO-HEAD

Alpha-GPCvsL-Tyrosine

CLINICAL COMPARISON // CHEMGRADE DATABASE

Compound Profile Comparison

Metric

Alpha-GPC

L-Tyrosine

Chemical ID

Choline

Amino Acid

Bio-Availability

High

Medium

Half-Life

4-6 Hours

2-3 Hours

Vendor

Double Wood

NOW Foods

Price

$19.95

$12.99

Goal-by-Goal Analysis

Cognitive Output

Alpha-GPC

Dosage300-600mg

Timing60 mins before task

Efficacy Score

8.9/10

⚠️ Contains Choline.

L-Tyrosine

Dosage500-1000mg

TimingEmpty stomach (Morning)

Efficacy Score

8.4/10

⚠️ Do not mix with protein.

Verdict

Alpha-GPC scores 0.5 points higher for cognitive (8.9 vs 8.4). High bioavailability gives it a pharmacokinetic advantage.

View →

Acquire Alpha-GPC

$19.95

Vendor: Double Wood

BUY ALPHA-GPC

Acquire L-Tyrosine

$12.99

Vendor: NOW Foods

BUY L-TYROSINE

Related Comparisons

L-TheaninevsAlpha-GPC L-TheaninevsL-Tyrosine Creatine MonohydratevsAlpha-GPC Creatine MonohydratevsL-Tyrosine

* 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.