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2022's Top 10 L-Leucine Supplements

Find out what to look for in a quality L-Leucine supplement and what to watch out for

What is L-Leucine?

Leucine is one of only 3 branched chain amino acids (BCAAs) in the human body. BCAAs are renowned for their usefulness in exercise, sports, and overall fitness.

If you’re trying to build muscle, leucine’s ability to promote protein synthesis (a key component of muscle growth) is second to none.Most BCAA supplements contain leucine, isoleucine, and valine in a 2:1:1 ratio, meaning that there is as much leucine as the other two BCAAs combined!

L-Leucine Fights Fatigue

Studies show that supplementing with L-leucine before and during your workout may reduce the feeling of fatigue while increasing mental alertness.

L-Leucine Slows Muscle Breakdown

Muscle breakdown is normal to an extent. Protein needs to be broken down in order to be built back up bigger and stronger. But when protein breakdown exceeds protein synthesis, muscle loss occurs.

Studies show that supplementing with L-leucine can halt or significantly reduce protein breakdown from occurring while promoting protein synthesis.

L-Leucine Promotes Muscle Growth

L-leucine increases protein synthesis while slowing muscle breakdown. The result of this 1-2 punch is that people who use leucine experience greater muscle gains than those who do not.

One study found that subjects who drank an L-leucine supplement following a workout developed up to 22% more muscle mass than their placebo counterparts.

L-Leucine Reduces Soreness

Studies show that because L-leucine mitigates protein catabolism (breakdown) during and after your workouts, it prevents levels of creatine kinase from getting too high. Elevated levels of creatine kinase are a tell-tale sign of muscle damage and protein breakdown.

As a result, L-leucine may help to alleviate muscle soreness while promoting recovery.

2022's Top 10 L-Leucine Supplements

1. Quality 

All the products we recommend have been third party tested to ensure they meet our high standards of quality.

2. Cost 

Getting your hands on a high quality supplement doesn’t have to break the bank. While our top priority will always be quality, we understand that price factors into many people’s buying decisions.

3. Brand Reputation

To ensure that your buying experience is a pleasant one, we recommend only products from companies with strong reputations for providing quality customer service and prompt shipping.

OVERALL RATING

99%

🥇 TS.com Best Seller!

🥇 TS.com User's Choice!

Nutricost Leucine Powder is our #1 Rated Leucine Supplement, as it is high quality and half the price of its competitors. Nutricost Leucine Powder features 5000 mg of Leucine in each serving. Click Here for Lowest Price

Uniquely, Nutricost is one of the few companies that control the full chain of manufacturing, from sourcing to manufacturing in an FDA-registered facility to warehousing and fulfillment, ensuring strict quality standards are met. Nutricost also offers exceptional customer support for all of its products.

Priced under $22, Nutricost Leucine Powder comes with 100 servings, which is just $0.22 each!. With Nutricost, you can be assured that this product does NOT contain ANY extra ingredients, fillers, or preservatives.

Nutricost Leucine Powder comes with a 120-day, no-questions-asked, money-back guarantee – the best guarantee on the market!

  • Our #1 Leucine!
  • Amazon's Choice
  • Only $0.22 per Serving!
  • Potent 5000 mg Per Serving
  • Non-GMO, Gluten Free, 3rd Party Tested
  • Made in a GMP Compliant, FDA Registered Facility

 

*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.

OVERALL RATING

96%

Amazon Price: $19.99

  • Lab Grade
  • 3 Grams Per Serving
  • Gluten Free
  • Lab Grade
  • 3 Grams Per Serving

*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.

OVERALL RATING

91%

Amazon Price: $26.96

  • Clean & Pure Powder.
  • No Fillers.
  • Factory Sealed Foil Zip Pouch.
  • Lab Tested for Verification
  • Guaranteed Purity.

*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.

OVERALL RATING

87%

Amazon Price: $26.61

  • FREE-FORM AMINO ACID/BUILDS LEAN TISSUE*: Studies suggest that leucine, in conjunction with adequate dietary protein, may help to build and maintain lean tissue and optimize body composition.*
  • VEGAN POWDER/MIXES EASILY: NOW Sports Leucine Powder is instantized for easy mixing in water, beverages, or smoothies. No clumping.
  • CERTIFICATIONS/CLASSIFICATIONS: Soy Free, Non-GMO, Vegan/Vegetarian, Nut Free, Made without Gluten, Dairy Free, Egg Free, Kosher
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968

*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.

OVERALL RATING

84%

Amazon Price: $17.50

  • Manufactured with no stearates, fillers, or flow agents
  • Vegan
  • Non-GMO
  • Gluten Free
  • 100% Laboratory Tested

*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.

OVERALL RATING

81%

Amazon Price: $15.99

  • ESSENTIAL AMINO ACID
  • MUSCLE PROTEIN SYNTHESIS
  • MUSCLE RECOVERY
  • RETAIN MUSCLE
  • NATURALLY FERMENTED

*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.

OVERALL RATING

79%

Amazon Price: $22.99

  • Science - Innovation - Quality - Results
  • 100% Pure Micronized Powder
  • Micronized 100% Pure Powder
  • Stimulates Protein Synthesis
  • Preserves Lean Muscle Mass

*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.

OVERALL RATING

76%

Amazon Price: $13.99

  • Essential in Muscle Building
  • 50 DAY SUPPLY
  • 100% PURE
  • GUARANTEE MONEY BACK
  • MADE IN OREGON

*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.

OVERALL RATING

74%

Amazon Price: $17.99

  • HPLC Certified Purity
  • 200 grams L-Leucine
  • Leucine Powder
  • Instantized, so it mixes very well in water
  • Unflavored

*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.

OVERALL RATING

72%

Amazon Price: $9.99

  • PURE ORGANIC INGREDIENTS
  • 50 DAY SUPPLY
  • 100% PURE
  • GUARANTEE MONEY BACK
  • MADE IN USA

*Individual Results May Vary - Ratings are based on Society Health Ranking System and do not necessarily reflect typical results from the use of these products. We encourage consumers to research by visiting each product's website for more information.

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