Category
Amino Acids
L-theanine, L-carnitine, BCAA, NAC and other amino acids
2181Swanson Ultra
Pharmaceutical Grade AjiPure Glycine 500 mg
77/100
capsule30 servings1 ingredient
2182
F3 Nutrition
BCAA Stack
77/100
capsule45 servings4 ingredients
2183Swanson Premium Brand
Glutamic Acid 500 mg
77/100
capsule30 servings1 ingredient
2184
AA Anabolic Agents
BCAA
77/100
capsule100 servings3 ingredients
2185Swanson
Free-Form Lysine 500 mg
77/100
capsule30 servings1 ingredient
2186Swanson
L-Citrulline Malate 750 mg
77/100
capsule30 servings1 ingredient
2187
Axis Labs
NE2 Arginine Ethyl Ester
77/100
capsule60 servings1 ingredient
2188
Labrada Nutrition
BA Endurance
77/100
capsule60 servings1 ingredient
2189
Swanson Ultra
Propionyl-L-Carnitine with Glycine GPLC Heart-Healthy Carnitine
77/100
capsule30 servings2 ingredients
2190
Jarrow Formulas
Acetyl L-Carnitine 250 mg
77/100
capsule60 servings1 ingredient
2191Jarrow Formulas
Acetyl L-Carnitine 500 mg
77/100
capsule60 servings1 ingredient
2192Jarrow Formulas
L-Carnitine 500 mg
77/100
capsule50 servings1 ingredient
2193Jarrow Formulas
L-Glutamine 750 mg
77/100
capsule120 servings1 ingredient
2194Jarrow Formulas
5-HTP 100 mg
77/100
capsule60 servings1 ingredient
2195Solgar
L-Cysteine 500 mg
77/100
capsule30 servings1 ingredient
2196
Jarrow Formulas
L-Carnosine
77/100
capsule45 servings1 ingredient
2197Jarrow Formulas
SAMe 200 mg
77/100
tablet60 servings1 ingredient
2198Jarrow Formulas
SAMe 400 mg
77/100
tablet30 servings1 ingredient
2199Jarrow Formulas
Theanine 100 mg
77/100
capsule60 servings1 ingredient
2200Jarrow Formulas
Theanine 200 mg
77/100
capsule60 servings1 ingredient
Frequently Asked Questions
What is the best amino acids supplement?
Based on our analysis of 5,071 amino acids products, Pharmaceutical Grade AjiPure Glycine 500 mg ranks #1 with a SupplementScore of 77/100. 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.