Category
Amino Acids
L-theanine, L-carnitine, BCAA, NAC and other amino acids
3341Source Naturals
L-Citrulline 1000 mg
72/100
tablet30 servings1 ingredient
3342
Primal Pharm
BCAA Honeydew Watermelon
72/100
powder45 servings3 ingredients
3343
Puritan's Pride
L-Carnosine 500 mg
72/100
capsule30 servings1 ingredient
3344
ath
BCAA Green Apple Flavor
72/100
powder30 servings8 ingredients
3345
ath
BCAA Cotton Candy Flavor
72/100
powder30 servings9 ingredients
3346
ath
BCAA Strawberry Kiwi Flavor
72/100
powder30 servings8 ingredients
3347
PhysioLogics
5-HTP L-5-Hydroxytryptophan 100 mg
72/100
capsule30 servings4 ingredients
3348
Puritan's Pride
N-Acetyl Cysteine 600 mg
72/100
capsule30 servings1 ingredient
3349Source Naturals
L-Arginine L-Citrulline Complex 1,000 mg
72/100
tablet30 servings3 ingredients
3350
Natural Vitality
CALM Mind Honey Vanilla
72/100
powder56 servings3 ingredients
3351
Natural Vitality
CALM Mind Unflavored
72/100
powder56 servings3 ingredients
3352
Best Naturals
L-Arginine L-Ornithine
72/100
tablet60 servings2 ingredients
3353Best Naturals
L-Citrulline 2000 mg
72/100
tablet60 servings1 ingredient
3354
Nature's Truth
L-Lysine 500 mg
72/100
tablet130 servings1 ingredient
3355Nature's Truth
Mega Strength L-Arginine 500 mg
72/100
capsule50 servings1 ingredient
3356Nature's Truth
Maximum Strength L-Arginine HCl 1,000 mg
72/100
tablet50 servings1 ingredient
3357Nature's Truth
Mega Strength L-Carnitine 1,000 mg
72/100
capsule30 servings1 ingredient
3358
Nature's Truth
NAC 1,200 mg
72/100
tablet30 servings1 ingredient
3359Nature's Truth
Super Strength Acetyl L-Carnitine HCl 1,000 mg
72/100
capsule30 servings1 ingredient
3360Nature's Truth
L-Lysine 1,000 mg
72/100
tablet100 servings1 ingredient
Frequently Asked Questions
What is the best amino acids supplement?
Based on our analysis of 5,071 amino acids products, L-Citrulline 1000 mg ranks #1 with a SupplementScore of 72/100. 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.