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The 25 Top-Rated Amino Acid Nutritional Supplements

Branched chain amino acids, or BCAAs for short, have been scientifically-proven to improve muscle strength, endurance, and recovery, making them a popular choice among fitness enthusiasts. While there are 9 amino acids in all, three are most commonly used in supplementation for their ability to improve lean muscle mass — leucine, isoleucine, and valine. While there are many amino acid supplements available on the market today, some are better than others for their purity, flavour, or additional supplement ingredients.

Note that any claims or statements have not been evaluated by the Food and Drug Administration, and that these products are not intended to diagnose, treat, cure, or prevent any disease.

In no particular order, here are 25 of the best amino acid supplements, based on available features and average customer ratings and reviews.

  1. Optimum Nutrition Creatine Powder

This micronized creatine powder easily blends with water or juice, and can be stacked with your other supplements. It helps aid in muscle recovery and growth, and boasts an unflavored formula.

Key features:

  • Available in powder or capsules
  • Available in a choice of sizes
  • Contains 114 servings
  • Made in the USA

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  1. Cellucor, C4 Pre Workout Supplements

This pre-workout supplement contains a specialized blend of ingredients to help you power through your workout and recover faster. It easily mixes with water, and contains caffeine for an added boost of energy.

Key features:

  • Available in a choice of sizes
  • Available in a choice of flavors
  • Contains 60 servings
  • 30-day money-back guarantee

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  1. Extra Strength L Arginine

Ideal for boosting energy, endurance, and supporting heart health, this supplement contains the essential amino acid L-Arginine, which helps relax blood vessels and improve blood circulation.

Key features:

  • Contains no preservatives, chemicals, artificial ingredients, or sugars
  • Money-back guarantee
  • Contains 60 capsules
  • Third-party tested for purity

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  1. MuscleTech Platinum 100% Creatine

This blend of 100% creatine boasts an unflavored formula for convenient stacking with your other supplements, and easily mixes into water, juice, or your protein shake. It helps to naturally increase strength while building lean muscle.

Key features:

  • Contains 80 servings
  • Includes 100g free bonus
  • Improves recovery time
  • HPLC-tested for quality

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  1. Optimum Nutrition BCAA Capsules

These BCAA capsules help provide your body with the essential amino acids it needs in order to perform better and recover faster. It boasts a 2:1:1 ratio of Leucine to Isoleucine to Valine, and can be taken mixed with your favorite beverage.

Key features:

  • Available in a choice of sizes
  • Easy to swallow
  • Made in the USA
  • Can be taken any time of day

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  1. BulkSupplements Creatine Monohydrate Powder

This 100% creatine boasts an unflavored formula for convenient stacking with your other supplements, and easily mixes into water, juice, or your protein shake. It has been lab-tested and verified to be 99.99% pure, and is even vegan-friendly.

Key features:

  • Available in a choice of sizes
  • Ideal for use pre- or post-workout
  • Free of common allergens including dairy, gluten, and soy
  • Yeast- and sugar-free

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  1. Evlution Nutrition BCAA Energy

This energizing blend of amino acids contains 5g of premium BCAAs per serving to aid in muscle energy, endurance, and repair. It easily mixes in water with a spoon or in your favorite shaker, and contains zero carbs or added sugars.

Key features:

  • Available in a choice of sizes
  • Available in a choice of flavors
  • Gluten- and calorie-free
  • Made in the USA

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  1. Optimum Nutrition Essential AmiN.O. Energy

This supplement contains a blend of essential amino acids to help your body function at its best, along with naturally-sourced caffeine for when you need a little pick-me-up. It boasts a sugar-free formula, and contains 5g of BCAAs per serving.

Key features:

  • Available in a choice of sizes
  • Available in a choice of flavors
  • Optional ready-to-drink formula
  • Contains 30 servings

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  1. RSP Nutrition Aminolean

Each serving of this amino acid supplement contains 5g of BCAAs, 1.5g of a weight management blend, and 130mg of an energy blend in order to help you power through your workouts, and recover faster. It has been manufactured in a GMP-certified facility, and tested for quality.

Key features:

  • Available in a choice of sizes
  • Available in a choice of flavors
  • Made in the USA
  • Suitable for men and women

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  1. BSN Amino X

This amino acid supplement helps improve endurance, performance, and recovery so you can make the most gains possible. It boasts a caffeine-free formula that provides 10g of BCAAs per serving, and easily mixes in water without any gross clumping.

Key features:

  • Available in a choice of sizes
  • Available in a choice of flavors
  • Contains a 2:1:1 BCAA ratio
  • Sugar-free

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  1. Cellucor, Alpha Amino

Containing 11 essential amino acids, this supplement provides 10g of BCAAs per serving, and boasts an effervescent formula that mixes thoroughly in water or sports drinks. It contains a 2:1:1 BCAA ratio for optimal performance and recovery, as well as essential electrolytes for hydration.

Key features:

  • Available in a choice of sizes
  • Available in a choice of flavors
  • 30-day money-back guarantee
  • Sugar-free

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  1. Scivation Xtend BCAA Powder

This amino acid supplement helps to support muscle growth and recovery, while providing the body with essentials electrolytes. It contains 7g of BCAAs per serving in a 2:1:1 ratio, and is free of carbohydrates and caffeine. It is available in a choice of sizes and flavors for all your training needs.

Key features:

  • NSF for Sport and Informed Choice certified
  • Easily mixes with water
  • Available in a ready-to-drink formula
  • Sugar-free, calorie-free

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  1. RSP Nutrition Amino Focus

This amino acid supplement contains 7g of BCAAs per serving, along with a specialized focus blend to help you perform at your peak in the gym. It is suitable for use any time of day, and is free from sugar, calories, and banned substances.

Key features:

  • Available in a choice of flavors
  • Made in the USA
  • Suitable for men and women
  • Free of artificial colors and flavors

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  1. MuscleTech Amino Build Next Gen

Each serving of this workout supplement contains 8g of BCAAs in a 2:1:1 ratio for optimum performance and recovery. It contains zero sugars or carbs, and easily mixes in water or your favorite sports drink. It includes a clinically studied 2.5g dose of betaine to help pack on lean muscle faster.

Key features:

  • Available in a choice of flavors
  • Contains 30 servings
  • Made in the USA
  • Helps replenish electrolytes

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  1. EVLUTION NUTRITION BCAA Lean Energy

This amino acid supplement contains 5g of BCAAs per serving, along with naturally-sourced caffeine for an added boost during your workouts. It boasts a carb- and sugar-free formula, and is suitable for use any time of day.

Key features:

  • Available in a choice of flavors
  • Made in the USA
  • Suitable for men and women
  • Easily mixes with water

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  1. Scivation Xtend Go

Great for use pre-workout or as a little midday pick-me-up, this amino acid supplement contains 7g of BCAAs in a 2:1:1 ratio per serving in order to help support muscle growth, strength, and recovery. It also includes caffeine and L-Theanine for increased energy and focus throughout the day.

Key features:

  • Available in a choice of sizes
  • Available in a choice of flavors
  • Sugar-, carbohydrate-, and calorie-free
  • 30-day money-back guarantee

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  1. RARI Amino Mend

This amino acid supplement contains a blend of ingredients that help to increase strength, endurance, and recovery from your sweat sessions. It contains a blend of electrolytes to aid in hydration, and has been made in a GMP-compliant facility for added quality.

Key features:

  • Made in the USA
  • Non-GMO, and gluten-free
  • Contains 30 servings
  • Money-back guarantee

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  1. Dymatize Super Protein Amino 6000

This amino acid supplement contains an extended release BCAA and protein blend in order to aid in workout performance and recovery. These capsules offer fast acting whey protein isolate & concentrate with slow acting casein protein, and it’s suitable for use any time of day.

Key features:

  • Gluten-free formula
  • Suitable for men and women
  • Contains 180 capsules
  • Available in a choice of sizes

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  1. Do Vitamins BCAA Capsules

This amino acid supplement has been third-party tested for purity, and contains a plant-based blend of amino acids in a 2:1:1 ratio. It has been made in the USA, and is free of banned substances and added fillers. It comes complete with a 30-day money-back guarantee, and each purchase helps children in need.

Key features:

  • Free of artificial colors, flavors, and sweeteners
  • Contains no soy, wheat, dairy, or gluten
  • Vegan-friendly formulation
  • 30 servings per container

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  1. BPI Sports Best BCAA Powder

This amino acid supplement helps aid in muscle recovery and lean muscle building, and contains 5g of BCAAs per serving. It also contains a CLA matrix blend to help aid in reducing body fat while preserving lean muscle mass. It is suitable for men and women, and can be taken at any time of day.

Key features:

  • Available in a choice of sizes
  • Available in a choice of flavors
  • Contains 30 servings
  • Carb- and sugar-free

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  1. Sheer Strength Labs BCAA Capsules

Available in easy-to-swallow capsules, this amino acid supplement contains a potent formula that not only aids in muscle performance and recovery, but helps boost fat-loss. It boasts a taste-free formula, and is suitable for men and women performing a variety of sports.

Key features:

  • Contains a 30-day supply
  • Money-back guarantee
  • Made in the USA
  • Free of artificial colors and preservatives

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  1. VINTAGE BUILD – The Essential 3-in-1 Muscle Builder

This 3-in-1 formula contains a blend of muscle-building ingredients including BCAA, creatine monohydrate, and L-glutamine. It boasts a flavored powder formulation that mixes easily with water or your favorite shake. It has been third-party tested for quality, and contains no artificial substances, GMOs, sugar, or gluten.

Key features:

  • Available in a choice of flavors
  • Made in the USA
  • Money-back guarantee
  • Vegetarian-friendly formula

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  1. MET-Rx® BCAA 2200 Supplement

These capsules contain a blend of BCAAs in a 2:1:1 ratio along with vitamin B6 in order to provide a complete muscle enhancing and fat-loss formula. It is suitable for use both pre- and post-workout, and has been specially-designed with bodybuilders and high-performance athletes in mind.

Key features:

  • Available in a choice of sizes
  • Contains 45 servings
  • Made in the USA
  • Suitable for men and women

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  1. Pure Encapsulations – BCAA Powder

These BCAA powder boast a hypoallergenic formula that is free of artificial colors and flavors, and gluten. Suitable for use by vegetarians and vegans, and has been third-party tested for quality and purity. Simply mix (1/2 to 1 scoop daily) with 10 oz of water or juice.

Key features:

  • Made in the USA
  • Suitable for men and women
  • Non-GMO formula

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  1. BulkSupplements BCAA Powder

This amino acid supplement contains a blend of three BCAAs in a 2:1:1 ratio for increased efficacy, and boasts an unflavored formula that is ideal for stacking with your favorite supplements or shakes. It comes in a resealable bag for increased freshness, and contains no artificial ingredients.

Key features:

  • Available in a choice of sizes
  • Lab-tested for purity and quality
  • Suitable for use pre- and post-workout
  • Sugar-, dairy-, soy-, and gluten-free

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