COMPARE THE FORMULAS

Amino acids.

395 product profiles across 134 brands. Compare the selected format, ingredients and evidence before choosing.

START WITH THE CATEGORY GUIDE

Understand amino acids before choosing a brand.

Compare essential amino acids, BCAAs and individual amino acids without confusing a scoop of powder with complete dietary protein.

Potential benefits · Evidence limits · Forms & label amounts · Risks · Comparing value

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Page 9 of 11 · 36 shown

Protocol For Life Balance

L-Glutamine 1000 mg

120 Veg Capsule(s) · U.S. label record

L-Glutamine: 1 g per 1 Veg Capsule(s). U.S. label record entered 2025-03-25; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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Protocol For Life Balance

L-Tryptophan 1000 mg

60 Tablet(s) · U.S. label record

L-Tryptophan: 1000 mg per 1 Tablet(s). U.S. label record entered 2025-03-25; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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Protocol For Life Balance

L-Tryptophan 500 mg

120 Veg Capsule(s) · U.S. label record

L-Tryptophan: 1 g per 2 Veg Capsule(s). U.S. label record entered 2025-08-22; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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PS ProSupps

HydroBCAA + Essentials Blackberry Lemonade

13.75 Ounce(s) / 390 Gram(s) · U.S. label record

Total Sugars 0 g per 13 g. U.S. label entered 2023-07-18; source retrieved 2026-11-02. Current formula and stock unconfirmed.

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PS ProSupps

HydroBCAA + Essentials Blue Raspberry

14.6 Ounce(s) / 414 Gram(s) · U.S. label record

Total Sugars 0 g per 13.8 g. U.S. label entered 2023-08-23; source retrieved 2026-11-02. Current formula and stock unconfirmed.

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PS ProSupps

HydroBCAA + Essentials Fruit Punch

14.6 Ounce(s) / 414 Gram(s) · U.S. label record

Total Sugars 0 g per 13.8 g. U.S. label entered 2023-08-23; source retrieved 2026-11-02. Current formula and stock unconfirmed.

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PS ProSupps

HydroBCAA + Essentials Texas Tea

14.18 Ounce(s) / 402 Gram(s) · U.S. label record

Total Sugars 0 g per 13.4 g. U.S. label entered 2023-08-23; source retrieved 2026-11-02. Current formula and stock unconfirmed.

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PS ProSupps

HydroBCAA + Essentials Watermelon

14.6 Ounce(s) / 414 Gram(s) · U.S. label record

Total Sugars 0 g per 13.8 g. U.S. label entered 2023-10-24; source retrieved 2026-11-02. Current formula and stock unconfirmed.

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Pure Encapsulations

L-Glutamine 500 mg

60 Capsules / 90 Capsules — US label

Per 1 capsule: 500 mg free-form L-glutamine.

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Pure Encapsulations

Taurine 1,000 mg

120 label servings (1 capsule per serving) — US label

Per 1 capsule: 1,000 mg free-form taurine.

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Pure Encapsulations

Taurine 500 mg

60 label servings (1 capsule per serving) — US label

Per 1 capsule: 500 mg free-form taurine.

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Pure Naturals

L-Arginine 500 mg

250 Capsule(s) · U.S. label record

L-Arginine: 500 mg per 1 Capsule(s). U.S. label record entered 2025-03-25; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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Pure Naturals

L-Citrulline 750 mg

180 Capsule(s) · U.S. label record

L-Citrulline: 750 mg per 1 Capsule(s). U.S. label record entered 2025-03-25; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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Pure Nootropics

L-Tyrosine 500 mg

90 Vegetarian Capsule(s) · U.S. label record

L-Tyrosine: 500 mg per 1 Capsule(s). U.S. label record entered 2024-08-22; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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Pure Power

BCAA + Beta-Alanine Tropical Punch

11.7 Ounce(s) / 333 Gram(s) · U.S. label record

Total Carbohydrates: 2 g per 11.1 g. U.S. label record entered 2025-03-25; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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Puritan's Pride

Essential Aminos Complex

60 Rapid Release Capsule(s) · U.S. label record

L-Histidine: 75 mg per 1 Vegetable Capsule(s). U.S. label record entered 2024-10-24; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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Puritan's Pride

Glycine 3000 mg

90 Capsule(s) · U.S. label record

L-Glycine 3000 mg per 3 Capsule(s). U.S. label entered 2023-06-22; source retrieved 2026-11-02. Current formula and stock unconfirmed.

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Puritan's Pride

L-Arginine 1000 mg

100 Rapid Release Capsule(s) · U.S. label record

L-Arginine: 1000 mg per 1 Capsule(s). U.S. label record entered 2024-09-25; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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Puritan's Pride

L-Glutamine 500 mg

100 Coated Tablet(s) · U.S. label record

L-Glutamine 2000 mg per 4 Tablet(s). U.S. label entered 2023-06-22; source retrieved 2026-11-02. Current formula and stock unconfirmed.

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Puritan's Pride

L-Lysine 1000 mg

60 Coated Caplet(s) · U.S. label record

L-Lysine: 1000 mg per 1 Caplet(s). U.S. label record entered 2024-09-25; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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Puritan's Pride

L-Lysine 500 mg

100 Rapid Release Capsule(s) · U.S. label record

L-Lysine 500 mg per 1 Capsule(s). U.S. label entered 2023-05-24; source retrieved 2026-11-02. Current formula and stock unconfirmed.

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Puritan's Pride Premium

L-Cysteine 500 mg

50 Rapid Release Capsule(s) · U.S. label record

L-Cysteine 500 mg per 1 Capsule(s). U.S. label entered 2023-05-24; source retrieved 2026-11-02. Current formula and stock unconfirmed.

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Puritan's Pride Premium

L-Taurine 1000 mg

50 Coated Caplet(s) · U.S. label record

L-Taurine: 1000 mg per 1 Caplet(s). U.S. label record entered 2024-08-22; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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Puritan's Pride Premium

L-Tyrosine 500 mg

100 Rapid Release Capsule(s) · U.S. label record

L-Tyrosine 500 mg per 1 Capsule(s). U.S. label entered 2023-06-22; source retrieved 2026-11-02. Current formula and stock unconfirmed.

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Purus Labs

L-Arginine

100 Veggie Capsule(s) · U.S. label record

L-Arginine: 2 g per 4 Veggie Capsule(s). U.S. label record entered 2025-03-25; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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Ron Teeguarden Nutraceuticals

L-Lysine 500 mg

100 Tablet(s) · U.S. label record

L-Lysine: 500 mg per 1 Tablet(s). U.S. label record entered 2024-07-25; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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Sculptnation

BCAAS Fruit Punch

7.02 Ounce(s) / 199 Gram(s) · U.S. label record

Calcium 24 mg per 7 g. U.S. label entered 2023-05-24; source retrieved 2026-11-02. Current formula and stock unconfirmed.

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Sierra Fit

Instantized BCAA Powder Unflavored

16 Ounce(s) / 1 lb(s) / 454 Gram(s) · U.S. label record

L-Leucine 2.5 g per 5 g. U.S. label entered 2022-09-22; source retrieved 2026-11-02. Current formula and stock unconfirmed.

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Sierra Fit

Micronized BCAA

240 Veggie Capsule(s) · U.S. label record

Micronized BCAA Blend: 1 g per 2 Capsule(s). U.S. label record entered 2024-11-22; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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Signature Supplements

9 Essential Amino Acids

100 Capsule(s) · U.S. label record

Leucine: 190 mg per 2 Capsule(s). U.S. label record entered 2025-09-25; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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Signature Supplements

L-Arginine 400 mg

100 Capsule(s) · U.S. label record

L-Arginine: 800 mg per 2 Capsule(s). U.S. label record entered 2025-09-25; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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Six Star Pro Nutrition

Pre-Workout N.O. Fury Elite Series

60 Caplet(s) · U.S. label record

Nitric Oxide Matrix 3000 mg per 3 Caplet(s). U.S. label entered 2023-02-21; source retrieved 2026-11-02. Current formula and stock unconfirmed.

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Solaray

DLPA DL-Phenylalanine 500 mg

60 VegCap(s) · U.S. label record

DL-Phenylalanine: 500 mg per 1 VegCap(s). U.S. label record entered 2025-09-25; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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Solaray

L-Cysteine 500 mg

30 VegCap(s) · U.S. label record

L-Cysteine: 500 mg per 1 VegCap(s). U.S. label record entered 2025-08-22; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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Solaray

L-Glutamine 500 mg

100 VegCap(s) · U.S. label record

L-Glutamine: 500 mg per 1 VegCap(s). U.S. label record entered 2025-09-25; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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Solaray

L-Lysine 500 mg

60 VegCap(s) · U.S. label record

L-Lysine: 500 mg per 1 VegCap(s). U.S. label record entered 2025-03-25; retrieved 2026-11-02. Current formula and stock are unconfirmed.

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