Category
Amino Acids
L-theanine, L-carnitine, BCAA, NAC and other amino acids
3821Life Extension
L-Theanine 100 mg
67/100
capsule30 servings2 ingredients
3822NutraBio
Alpha EAA Cherry Lime Slush
67/100
powder30 servings8 ingredients
3823NutraBio
Alpha EAA Strawberry Lemon Bomb
67/100
powder30 servings8 ingredients
3824
DY Nutrition
Hit BCAA 4:1:1 + Glutamine Cherry
67/100
powder30 servings9 ingredients
3825
Swolverine
BCAA Lemon Lime
67/100
powder50 servings7 ingredients
3826
AN Amazing Nutrition Amazing Formulas
L-Glutamine
67/100
powder454 servings1 ingredient
3827
USPlabs
Ultra Micronized Modern BCAA+ Blue Raspberry
67/100
powder30 servings4 ingredients
3828Source Naturals
Proline & Lysine
67/100
tablet30 servings9 ingredients
3829
Puritan's Pride
L-Arginine L-Ornithine L-Lysine Complex
67/100
tablet15 servings5 ingredients
3830Kirkman
TMG Liquid Natural Raspberry Flavoring
67/100
liquid94 servings3 ingredients
3831NutraBio Performance
Leanshots L-Carnitine 3000 Blue Razz
67/100
liquid31 servings4 ingredients
3832
Puritan's Pride
Amino 1000
67/100
tablet95 servings6 ingredients
3833NutraBio Performance
Leanshots L-Carnitine 3000 Green Apple
67/100
liquid31 servings4 ingredients
3834NutraBio Performance
Leanshots L-Carnitine 3000 Peach Rings
67/100
liquid31 servings4 ingredients
3835KAL
NAC+ 600 mg
67/100
tablet60 servings5 ingredients
3836
NutraBio Performance
Leanshots L-Carnitine 3000 Sour Candy
67/100
liquid31 servings4 ingredients
3837Kirkman
TMG Liquid Natural Raspberry Flavor
67/100
liquid94 servings3 ingredients
3838
Bronson Laboratories
Amino Acid Complex 1500 mg
67/100
tablet30 servings4 ingredients
3839Thorne Research
Amino Complex Berry Flavor
67/100
powder30 servings13 ingredients
3840Twinlab
Amino Fuel
67/100
liquid21 servings35 ingredients
Frequently Asked Questions
What is the best amino acids supplement?
Based on our analysis of 5,071 amino acids products, L-Theanine 100 mg ranks #1 with a SupplementScore of 67/100. 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.