🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • Limited research evidence available for ingredients
B Label Compliance Grade

Product Label

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Label Data

7.4 Gram(s) Serving Size
30 Servings
Amino acid/Protein Product Type
0% Evidence Coverage

Supplement Facts — Evidence Check

3 Gram(s)
📊 Market median: 17.4mg (161 products)
Median 17.4mg This product: 3mg
1 Gram(s)
📊 Market median: 17.4mg (161 products)
Median 17.4mg This product: 1mg
L-Valine
1 Gram(s)

Other Ingredients

Citric Acid Malic Acid Acesulfame Potassium Natural and Artificial flavor Sucralose FD&C Blue No. 1

Label Claims — Verification

All Other
Structure/Function
All Other (100% of products) Structure/Function (90% of products) Nutrient (56% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free

Product Information

📋 Directions for Use

Directions for use: As a dietary supplement, mix 1 level scoop of Signature BCAA in 10oz. of water and drink within 30 minutes after workouts. Also, it's great to sip on throughout the day.

⚠️ Warnings & Precautions

Warnings: Consult your physician before using this product if you're taking any medications or are under a physician's care for a medical condition. Not for use for those under the age of 18 or women that are pregnant, trying to get pregnant or nursing.

Not for use for those under the age of 18 or women that are pregnant, trying to get pregnant or nursing.

🧪 Formulation Notes

Gluten and soy free

Every product is transparent, filler-free, and formulated with effective doses of research-backed ingredients you can trust.

Additional Information

A signature is a promise. A symbol of your identity. Your mark on the world. Bodybuilding.com was founded on a single promise: Trust. It's who we are and it's in our blood. Our Signature line is built on the same promise.

Manufactured in the USA in a GMP registered facility with domestic and international ingredients. Contents may settle. Packed by weight, not by volume.

Promotes muscle growth Intra-workout fuel source Reduces muscle breakdown 30 servings Naturally and artificially flavored

BBCOM754 - 201217 - V5

We create the highest quality supplements, so you can focus on leaving a mark of your own.

Product Details

UPC / SKU 8 53002 00754 2
DSLD Entry Date 2019-04-25
Product Type Amino acid/Protein
Form Powder
DSLD ID 199994
Data Updated 2026-04-11

Research Evidence

8 Research Sources
45 Avg Quality Score
7 Clinical Trial
1 Meta Analysis
B Effects of Whey Protein, Leucine, and Vitamin D Supplementation in Patients with Sarcopenia: A Systematic Review and Meta-Analysis
Meta Analysis Nutrients 2023
C Leucine-enriched Branched-chain Amino Acid on Muscle Thickness, Interleukin-6, SOFA Score in Critical Illness
Clinical Trial ClinicalTrials.gov 2023
C The Effects of Leucine Metabolites in Performance, Body Composition and Biochemical Markers of Muscle Damage
Clinical Trial ClinicalTrials.gov 2017
C Can Supplemental Leucine Offset Disuse-induced Muscle Atrophy?
Clinical Trial ClinicalTrials.gov 2017
C Leucine Supplementation in Sarcopenic Older Individuals
Clinical Trial ClinicalTrials.gov 2019
C The Effect of Leucine on Carnitine Transport to Skeletal Muscle
Clinical Trial ClinicalTrials.gov 2016
C Hydrolyzed Casein and Whey Protein Supplementation and the Addition of Leucine to Induce Protein Anabolism in Malnourished COPD Patients
Clinical Trial ClinicalTrials.gov 2009
C Resistance Exercise Training and Amino Acid Leucine Supplementation in Frail Elderly Women
Clinical Trial ClinicalTrials.gov 2013
View all evidence for Leucine →

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