Category
Amino Acids
L-theanine, L-carnitine, BCAA, NAC and other amino acids
1841
Patient One MediNutritionals
Arginine 750 mg
78/100
capsule90 servings1 ingredient
1842
Thorne
L-Carnitine
78/100
capsule30 servings1 ingredient
1843Thorne
Theanine
78/100
capsule30 servings1 ingredient
1844
Thorne
Taurine
78/100
capsule30 servings1 ingredient
1845Thorne
Glycine
78/100
capsule125 servings1 ingredient
1846
Thorne
L-Tyrosine
78/100
capsule30 servings1 ingredient
1847Thorne
L-Lysine
78/100
capsule30 servings1 ingredient
1848Thorne
L-Glutamine
78/100
capsule30 servings1 ingredient
1849
Vital Nutrients
Carnitine 500 mg
78/100
capsule30 servings1 ingredient
1850Thorne
Carnityl
78/100
capsule30 servings1 ingredient
1851Thorne
Perfusia-SR
78/100
capsule60 servings1 ingredient
1852Thorne
NAC
78/100
capsule30 servings1 ingredient
1853
Vital Nutrients
Glutamine 850 mg
78/100
capsule25 servings1 ingredient
1854
The Vitamin Shoppe
L-Citrulline 1000 mg
78/100
capsule60 servings1 ingredient
1855
The Vitamin Shoppe
L-Lysine 500 mg
78/100
capsule30 servings1 ingredient
1856
The Vitamin Shoppe
L-Glutamine 500 mg
78/100
capsule30 servings1 ingredient
1857
The Vitamin Shoppe
Carnipure L-Carnitine 1100 mg Vanilla
78/100
liquid15 servings5 ingredients
1858
Pure Encapsulations
Amino Replete
78/100
powder60 servings18 ingredients
1859
BodyTech
Glutamine
78/100
capsule30 servings1 ingredient
1860
Nature's Plus
L-Lysine 500 mg
78/100
capsule30 servings1 ingredient
Frequently Asked Questions
What is the best amino acids supplement?
Based on our analysis of 5,071 amino acids products, Arginine 750 mg ranks #1 with a SupplementScore of 78/100. Scores are based on label quality - dosage transparency, formulation cleanliness, and ingredient disclosure.
How are amino acids supplements scored?
Every product is scored algorithmically using data from the NIH Dietary Supplement Label Database. The SupplementScore evaluates dosage transparency (35 pts), label completeness (25 pts), formulation cleanliness (25 pts), and ingredient profile (15 pts).
Does a higher score mean the supplement works better?
No. The score reflects label quality, how transparent and clean the product label is, not clinical efficacy, bioavailability, or safety. A higher score means better label practices, not guaranteed results.