Category
Amino Acids
L-theanine, L-carnitine, BCAA, NAC and other amino acids
121Carlson
L-Lysine Amino Acid Powder
80/100
powder83 servings1 ingredient
122Carlson
Acetyl L-Carnitine Amino Acid Powder
80/100
powder83 servings1 ingredient
123Carlson
L-Glutamine Powder
80/100
powder33 servings1 ingredient
124Carlson
Glycine Amino Acid Powder
80/100
powder50 servings1 ingredient
125Carlson
L-Lysine Powder
80/100
powder83 servings1 ingredient
126DaVinci Laboratories Of Vermont
Gluconic DMG Liquid 300 mg
80/100
liquid60 servings1 ingredient
127Life Extension
Arginine Ornithine Powder
80/100
powder48 servings2 ingredients
128Life Extension
L-Glutamine Powder
80/100
powder50 servings1 ingredient
129Life Extension
L-Taurine Powder
80/100
powder382 servings1 ingredient
130Life Extension
TMG Powder
80/100
powder97 servings1 ingredient
131Life Extension
Branched Chain Amino Acids (Free Form)
80/100
capsule22 servings3 ingredients
132Life Extension
Glycine 1000 mg
80/100
capsule30 servings1 ingredient
133Life Extension
TMG 500 mg
80/100
capsule30 servings1 ingredient
134Life Extension
L-Lysine 620 mg
80/100
capsule30 servings1 ingredient
135DaVinci Laboratories Of Vermont
N-Acetyl Cysteine 500 mg
80/100
capsule90 servings1 ingredient
136PrimaForce
AAKG 250 g Unflavored
80/100
powder125 servings1 ingredient
137NutraBio
AAKG
80/100
powder142 servings1 ingredient
138NutraBio
L-Theanine 200 mg
80/100
capsule90 servings1 ingredient
139ALLMAX NUTRITION
Glutamine
80/100
powder200 servings1 ingredient
140Carlson
Acetyl L-Carnitine Powder
80/100
powder83 servings1 ingredient
Frequently Asked Questions
What is the best amino acids supplement?
Based on our analysis of 775 amino acids products, L-Lysine Amino Acid Powder ranks #1 with a SupplementScore of 80/100. 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.