Category
Amino Acids
L-theanine, L-carnitine, BCAA, NAC and other amino acids
2801KAL
GABA L-Theanine Stress B Lozenge Mango Tangerine
75/100
lozenge50 servings12 ingredients
2802
Pure Naturals
Acetyl L-Carnitine 500 mg
75/100
capsule60 servings1 ingredient
2803
Pure Naturals
L-Arginine 120 500 mg
75/100
capsule120 servings1 ingredient
2804
Pure Naturals
L-Arginine 500 mg
75/100
capsule250 servings1 ingredient
2805
The Vitamin Shoppe
DL-Phenylalanine 500 mg
75/100
capsule30 servings1 ingredient
2806
XYMOGEN
SAMe & TMG Natural Lemon Flavor
75/100
capsule30 servings2 ingredients
2807ALLMAX ESSENTIALS
NAC 600 mg
75/100
capsule60 servings1 ingredient
2808
Arbonne
Sport Muscle Recovery Mixed Berry Flavor
75/100
powder20 servings8 ingredients
2809
BRI Nutrition
L-Theanine Extra Strength
75/100
capsule60 servings2 ingredients
2810
Foods Plus
L-Lysine HCl 500 mg
75/100
tablet30 servings1 ingredient
2811Nutricost
Caffeine 100 mg with L-Theanine 100 mg
75/100
capsule240 servings2 ingredients
2812
Natural Grocers by Vitamin Cottage
L-Arginine 500 mg
75/100
capsule60 servings1 ingredient
2813
VQ Verified Quality
Carnitine 500 mg
75/100
capsule60 servings1 ingredient
2814
Natural Factors
Acetyl- L-Carnitine 1000 mg
75/100
capsule30 servings1 ingredient
2815
Natural Factors
L-Carnitine 500 mg
75/100
capsule30 servings1 ingredient
2816Natural Factors
L-Tyrosine 1000 mg
75/100
capsule30 servings1 ingredient
2817
The Vitamin Shoppe
Acetyl-L-Carnitine 750 mg
75/100
capsule30 servings1 ingredient
2818
Effective Nutrition
Pure L-Arginine Premium
75/100
capsule120 servings4 ingredients
2819
Dymatize Nutrition
L-Carnitine Xtreme
75/100
capsule60 servings3 ingredients
2820
Solgar
L-Arginine L-Ornithine 500 mg / 250 mg
75/100
capsule30 servings2 ingredients
Frequently Asked Questions
What is the best amino acids supplement?
Based on our analysis of 5,071 amino acids products, GABA L-Theanine Stress B Lozenge Mango Tangerine ranks #1 with a SupplementScore of 75/100. 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.