Category
Amino Acids
L-theanine, L-carnitine, BCAA, NAC and other amino acids
101
Vitamin World
Maximum Strength L-Taurine 1000 mg
71/100
tablet30 servings1 ingredient
102Doctor's Best
Best Acetyl-L-Carnitine HCl Featuring Sigma Tau Carnitine
71/100
capsule120 servings1 ingredient
103
NOW
L-Phenylalanine 500 mg
80/100
capsule30 servings1 ingredient
104
MRM Metabolic Response Modifiers
BCAA+G 1000 Lemonade Flavor
78/100
powder166 servings5 ingredients
105
MRM
L-Carnitine 1000 Tropical Berry Flavor
78/100
liquid34 servings4 ingredients
106
New Sun
L-Tyrosine Amino Acid 500 mg
74/100
capsule100 servings1 ingredient
107
Doctor's Best
Best L-Carnitine Fumarate
74/100
capsule180 servings1 ingredient
108
BPI
Amino Acid Sequence
59/100
powder30 servings1 ingredient
109NOW
DMG 125 mg N, N-Dimethyl Glycine
75/100
capsule30 servings1 ingredient
110Doctor's Best
Best L-Tryptophan 500 mg
74/100
capsule90 servings1 ingredient
111
Natrol
5-HTP
74/100
capsule30 servings1 ingredient
112
MYOGENIX
Amino2 Green Apple
40/100
powder35 servings8 ingredients
113Natrol
5-HTP TR Time Release 100 mg
71/100
tablet30 servings1 ingredient
114Natrol
5-HTP 200 mg TR Time Release
71/100
tablet30 servings1 ingredient
115
Nature's Plus
Inositol 600 mg
75/100
tablet30 servings1 ingredient
116
Gaspari Nutrition
AminoLast Strawberry Kiwi
54/100
powder30 servings12 ingredients
117
AST Sports Science
Micronized GL3 L-Glutamine
80/100
powder120 servings1 ingredient
118
Prolab
Beta Alanine Extreme
74/100
capsule120 servings2 ingredients
119
Natrol
Theanine
74/100
tablet30 servings1 ingredient
120
CytoSport
Monster Amino Fruit Punch
40/100
powder30 servings10 ingredients
Frequently Asked Questions
What is the best amino acids supplement?
Based on our analysis of 5,071 amino acids products, Maximum Strength L-Taurine 1000 mg ranks #1 with a SupplementScore of 71/100. 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.