Category
Amino Acids
L-theanine, L-carnitine, BCAA, NAC and other amino acids
2921
Roex
L-Lysine/L-Proline
74/100
capsule120 servings2 ingredients
2922
Martin Avenue Pharmacy
L-Glutamine 500 mg
74/100
tablet30 servings1 ingredient
2923
Martin Avenue Pharmacy
L-Lysine 500 mg
74/100
tablet30 servings1 ingredient
2924
Martin Avenue Pharmacy
SAM-e 200 mg
74/100
tablet30 servings1 ingredient
2925
SNI Elite Series
Arginine Ethyl Ester
74/100
capsule80 servings1 ingredient
2926
NutriCology
Taurine 1000 mg
74/100
capsule250 servings1 ingredient
2927
Jarrow Formulas
Arginine 1000 mg
74/100
tablet100 servings1 ingredient
2928
Jarrow Formulas
Arginine + Ornithine
74/100
tablet100 servings2 ingredients
2929NutriCology
NAC Enhanced Antioxidant Formula
74/100
tablet90 servings4 ingredients
2930
Jarrow Formulas
BCAA Branched Chain Amino Acid Complex
74/100
capsule60 servings5 ingredients
2931
Rugby
L-Carnitine 250 mg
74/100
capsule30 servings1 ingredient
2932Jarrow Formulas
L-Glutamine 1000 mg
74/100
tablet100 servings1 ingredient
2933
Jarrow Formulas
GPLC 750 mg
74/100
tablet60 servings1 ingredient
2934
Jarrow Formulas
N-A-C Sustain 600 mg
74/100
tablet100 servings1 ingredient
2935
Jarrow Formulas
TMG 500 mg
74/100
tablet120 servings1 ingredient
2936
Allergy Research Group
Taurine
74/100
capsule250 servings1 ingredient
2937Swanson
L-Glutamine 500 mg
74/100
capsule30 servings1 ingredient
2938Swanson
L-Tyrosine 500 mg
74/100
capsule30 servings1 ingredient
2939
Natrol
5-HTP 50 mg
74/100
capsule45 servings1 ingredient
2940Doctor's Best
Sustained plus Immediate Release L-Arginine 500 mg
74/100
tablet60 servings1 ingredient
Frequently Asked Questions
What is the best amino acids supplement?
Based on our analysis of 5,071 amino acids products, L-Lysine/L-Proline ranks #1 with a SupplementScore of 74/100. 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.