🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 17% of ingredients have research evidence
B Label Compliance Grade

Product Label

📸

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Label Data

205 Gram(s) Serving Size
13 Servings
Other Combinations Product Type
17% Evidence Coverage

Supplement Facts — Evidence Check

Calories
750 Calorie(s)
Total Fat
6 Gram(s) (8% DV)
Cholesterol
100 mg (33% DV)
Total Carbohydrates
123 Gram(s) (45% DV)
Protein
50 Gram(s)
Calcium
560 mg (43% DV)
Iron
5.1 mg (28% DV)
Sodium
720 mg (31% DV)
Potassium
1320 mg (28% DV)
Tri-MG Infusion
3 Gram(s)
📊 Market median: 5.0mg (298 products) 📚 701 studies (Tier A: 5, B: 123)
This product: 3mg
📊 Market median: 500.0mg (180 products) 📚 5 studies (Tier A: 0, B: 1)
This product: 500mg

Other Ingredients

Maltodextrin Protein Blend Cocoa Natural and Artificial flavors MCT Lecithin Salt Acesulfame Potassium Sucralose

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (98% of products) Structure/Function (78% of products) Nutrient (56% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free

Product Information

📋 Directions for Use

Directions: As a dietary supplement, mix 4 level scoops (205 g) with 16 fl. oz. of cold water or milk. Consume 1-2 servings daily. On training days, consume post-workout. On non-training days, consume first thing in the morning or between meals. Consume ample amounts of water while taking this product.

⚠️ Warnings & Precautions

Keep out of reach of children.

Contains: Milk and soybeans.

Warning: Consult your physician prior to using this product if you are pregnant, nursing, taking medication, under 18 years of age, or have a medical condition.

Warning: Consult your physician prior to using this product if you are pregnant, nursing, taking medication, under 18 years of age, or have a medical condition.

Discontinue use two weeks prior to surgery.

🧪 Formulation Notes

Typical amounts of key amino acids per 4 scoop serving to support optimal muscle growth and development 11 g of BCAA Leucine Isoleucine Valine 35 g of muscle supporting amino acids Glutamine & glutamic acid Tyrosine Aspartic acid Cystine Lysine Tryptophan Threonine Histidine Proline Alanine Serine Phenylalanine 4 g of creatine building blocks Arginine Methionine Glycine

750 calories 50 g protein 11 g BCAA 3 g creatine matrix

Clinically proven muscle strength & stamina Increase lean muscle mass with 40% fewer sets Micronized aminos to help fuel muscles

Natural + artificial flavors

Gluten free.

Notice: Significant product settling may occur.

Banned substance free

The ultimate lean mass builder Clinically proven Helps increase lean muscle mass, weight, strength & stamina with 40% fewer sets

Nutritional foundation The right amount of carbs, quality proteins & healthy fats to complement your training & achieve maximum gains Fast, medium & slow absorbing proteins Science-based nutrition for advanced muscle performance Enhanced results Studies show creatine can safely & efficiently support immediate energy production & athletic performance when combined with regular exercise Beyond the basics Tri-MG infusion This anabolic blend combines clinically studied Betaine with HMB creating an anti-catabolic effect for your muscles to support athletic performance Creatine matrix blend Includes 3 forms of creatine + ingredients your body uses to make creatine to help improve training results & support muscle protein synthesis Micronized amino acids Faster absorbing, key aminos for better muscle fuel to support muscle protein synthesis & key processes crucial to gaining mass

Additional Information

3 Sets + Mass XXX = 5 sets Equal gain in mass, muscle strength and endurance In an eight-week, randomized, double-blind, placebo-controlled study of healthy male volunteers, 18 subjects completer 3 sets of resistance-training (RT) daily + the macronutrient blend in Mass XXX, and 16 subjects performed 5 sets RT daily with no supplement. After eight weeks, subjects on the supplement showed equal gains in body weight, fat free mass (FFM), maximal muscle strength (MMS) and muscle endurance (ME) with only 3 sets of RT per day compared to the control group who completed 5 sets RT per day.

When used in conjunction with an exercise program.

Informedchoice.org Trusted by sport

Products bearing this logo have been tested for banned substances by LGC Science, Inc., a world-class anti-doping lab. Product was tested for over 145 banned substances on the 2017 World Anti-Doping Agency (WADA) Prohibited List via LGC skip lot testing protocol #ICP0307. See gnc.com for more information.

Store in a cool, dry place.

Advanced muscle performance

Banned substance free Gluten free

If it's on our labels, then it's in our bottles. Full dosing, full transparency and no proprietary blends. Clinically studied ingredients backed by real science. Get massive. Get advanced muscle performance.

Product Details

UPC / SKU 0 48107 18567 1
DSLD Entry Date 2019-12-22
Product Type Other Combinations
Form Powder
Brand GNC AMP
DSLD ID 210519
Data Updated 2026-04-11

Research Evidence

50 Research Sources
47 Avg Quality Score
28 Rct
13 Clinical Trial
5 Guideline
4 Systematic Review
A Using a Novel Consensus-Based Chemoinformatics Approach to Predict ADMET Properties and Druglikeness of Tyrosine Kinase Inhibitors.
Guideline International journal of molecular sciences 2025
B Australia and New Zealand consensus statement on the cardiovascular management of patients with chronic lymphocytic leukaemia treated with Bruton's tyrosine kinase inhibitors.
Guideline Internal medicine journal 2025
B Branched-chain amino acid supplementation for improving growth and development in term and preterm neonates
Systematic Review The Cochrane database of systematic reviews 2020
B [Clinical practice guideline on anaplastic lymphoma kinase-tyrosine kinase inhibitors for non-small cell lung cancer (2025 edition)].
Guideline Zhonghua zhong liu za zhi [Chinese journal of oncology] 2025
B [Chinese expert consensus on epidermal growth factor receptor tyrosine kinase inhibitors for the treatment of non-small cell lung cancer (2025 edition)].
Guideline Zhonghua yi xue za zhi 2025
B Consensus Guideline for the Diagnosis and Treatment of Tyrosine Hydroxylase (TH) Deficiency.
Guideline Journal of inherited metabolic disease 2025
B Baseline-dependent effect of dopamine's precursor L-tyrosine on working memory gating but not updating
Rct Cognitive, affective & behavioral neuroscience 2020
B Effect of Amino Acid Supplementation on Iron Regulation after Endurance Exercise
Rct Nutrients 2023
C Attenuating Muscle Damage Biomarkers and Muscle Soreness After an Exercise-Induced Muscle Damage with Branched-Chain Amino Acid (BCAA) Supplementation: A Systematic Review and Meta-analysis with Meta-regression
Systematic Review Sports medicine - open 2024
C The Effects of Green Tea Amino Acid L-Theanine Consumption on the Ability to Manage Stress and Anxiety Levels: a Systematic Review
Systematic Review Plant foods for human nutrition (Dordrecht, Netherlands) 2020
View all evidence for Tyrosine →

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