10 Best l leucine supplements of 2025

Save up to 17% off

Best Choice

1

andmino

HMB and L-Leucine Gummies, 3000mg, with Trehalose, for Muscle Growth, Muscle Relief and Workout Recovery, for Adults & Elder, Non-GMO, Vegan, Gluten Free, Apple Flavor, 120
9.8

Exceptional

Our Rating
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Value for Money

2

BulkSupplements

BulkSupplements.com L-Leucine Powder - Leucine Supplements, BCAA Supplements - Amino Acid Powder, Unflavored, 5g per Serving, 500g (1.1 lbs) (Pack of 1)
9.5

Excellent

Our Rating
3

Nutricost
Nutricost L-Leucine 2,000mg, 120 Vegetarian Capsules, Non-GMO, Gluten Free, 30 Servings

17% Off
Main highlights

High_Quality_L-Leucine_Per_Serving
2,000mg of high-quality L-Leucine per serving, 120 capsules per bottle, vegetarian, non-GMO, gluten-free, 3rd party tested, made in a GMP compliant, FDA registered facility.

Ideal_For_Muscle_Building
Perfect for those looking to increase amino acid intake, especially L-Leucine, to enhance muscle mass and strength, suitable for pre-workout routines.

Praised_For_Quick_Delivery_And_Effectiveness
Most customers appreciate the quick delivery, ease of swallowing the capsules, and the effectiveness in improving athletic performance and muscle building.
Key specs
- Gluten-Free:Yes
- Capsules:120 Capsules
- Form:Capsules
- Ingredients:L-Leucine
- Non-GMO:Yes
9.4

Excellent

Our Rating

9.9
simple to consume

9.7
quality of ingredients

9.5
worth the money
4

Nutricost

Nutricost Pure L-Leucine Powder 500 Grams
9.1

Excellent

Our Rating
5

BulkSupplements

BulkSupplements.com L-Leucine Capsules - Leucine Supplements, Amino Acid Supplement - Gluten Free, 10 Capsules per Serving (5000mg), 300 Count (Pack of 1)
9.0

Excellent

Our Rating
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6

NutraBio
NutraBio L-Leucine Supplement - Optimal Amino Acid for Muscle Growth & Recovery - Naturally Fermented Free Form Leucine Amino Acids Supplement- Vegan, Non-GMO, Gluten Free - 400mg, 180 Capsules
Main highlights

Promotes Muscle Growth and Recovery
Premium L-Leucine supplement aids in muscle growth, repair, and reduces soreness.

Ideal for Post-Workout Recovery
Best used after workouts to enhance muscle recovery and reduce soreness.

Praised for Transparency and Purity
Customers appreciate the pure ingredients and transparent labeling with no fillers.
8.8

Very Good

Our Rating

9.9
quality of ingredients

9.5
worth the money

9.3
simple to consume
7

SWANSON

SWANSON Amino Acid Ajipure L-Leucine Pharmaceutical Grade 500 Milligrams 60 Veg Capsules
8.7

Very Good

Our Rating
8

NutraBio
NutraBio 100% Pure L-Leucine - Muscle Recovery and Support - Naturally Fermented Free Form Amino Acid - Vegan, Non-GMO, Gluten Free - (500 Grams)
Main highlights

Pure Leucine Powder Benefits
NutraBio L-Leucine Powder aids in recovery, enhances blood flow, and is economical. Sealed packaging and scoop included for convenience.

Best Use for Workout Recovery
Ideal for mixing with flavored drinks or smoothies to mask the taste. Recommended for weightlifting and muscle recovery.

Praised for Effectiveness
Customers appreciate its effectiveness in reducing muscle fatigue and soreness, despite minor issues with mixing and taste.
8.5

Good

Our Rating
9

BESTVITE

BESTVITE L-Leucine 500mg per Capsule (240 Vegetarian Capsules) - No Stearates - No Fillers - No Flow Agents - Vegan - Non GMO - Gluten Free
8.4

Good

Our Rating
10

Source Naturals
Source Naturals L-Leucine, Energy Support*, A Free Form Essential Amino Acid Supplement for Energy Support - 240 Capsules
Main highlights

Ultimate Energy Support
L-Leucine is an essential BCAA that stimulates muscle protein synthesis, boosts energy, and supports explosive strength, ideal for bodybuilders and athletes.

Ideal for Muscle Growth and Energy
Suggested use is 2-3 capsules daily between meals. Perfect for those needing muscle growth, stamina, mental alertness, and energy without jitters.

Highly Praised for Convenience and Effectiveness
Customers love the easy-to-swallow capsules, which avoid the bad taste of powders, and appreciate the noticeable benefits in muscle growth and energy.
8.3

Good

Our Rating

9.3
worth the money

8.7
Efficient Energy Use

8.2
Flavor

10 Best l leucine supplements of 2025

1

HMB and L-Leucine Gummies, 3000mg, with Trehalose, for Muscle Growth, Muscle Relief and Workout Recovery, for Adults & Elder, Non-GMO, Vegan, Gluten Free, Apple Flavor, 120

How do we rank?

How do we rank?

Analyzing top stores

2

BulkSupplements.com L-Leucine Powder - Leucine Supplements, BCAA Supplements - Amino Acid Powder, Unflavored, 5g per Serving, 500g (1.1 lbs) (Pack of 1)

3

Nutricost L-Leucine 2,000mg, 120 Vegetarian Capsules, Non-GMO, Gluten Free, 30 Servings

9.9

9.7

9.5

4

Nutricost Pure L-Leucine Powder 500 Grams

5

BulkSupplements.com L-Leucine Capsules - Leucine Supplements, Amino Acid Supplement - Gluten Free, 10 Capsules per Serving (5000mg), 300 Count (Pack of 1)

6

NutraBio L-Leucine Supplement - Optimal Amino Acid for Muscle Growth & Recovery - Naturally Fermented Free Form Leucine Amino Acids Supplement- Vegan, Non-GMO, Gluten Free - 400mg, 180 Capsules

9.9

9.5

9.3

7

SWANSON Amino Acid Ajipure L-Leucine Pharmaceutical Grade 500 Milligrams 60 Veg Capsules

8

NutraBio 100% Pure L-Leucine - Muscle Recovery and Support - Naturally Fermented Free Form Amino Acid - Vegan, Non-GMO, Gluten Free - (500 Grams)

9

BESTVITE L-Leucine 500mg per Capsule (240 Vegetarian Capsules) - No Stearates - No Fillers - No Flow Agents - Vegan - Non GMO - Gluten Free

10

Source Naturals L-Leucine, Energy Support*, A Free Form Essential Amino Acid Supplement for Energy Support - 240 Capsules

9.3

8.7

8.2

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