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Mass XXX Vanilla

product on market Powder GNC AMP Advanced Muscle Performance Safety: 100/100
100/100

This product looks safe

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

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

This product provides calories, carbohydrates, and protein, which are foundational nutrients supported by strong evidence for supporting muscle growth and energy balance. These macronutrients facilitate recovery and weight gain in active individuals. The evidence for these basic nutritional components is extensive and well-established.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Mass XXX Vanilla
Open Full PDF View on NIH DSLD →
Details

Label Data

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

Supplement Facts — Evidence Check

Calories
740 Calorie(s)
Total Fat
6 Gram(s) (8% DV)
Cholesterol
100 mg (33% DV)
Total Carbohydrates
122 Gram(s) (44% DV)
Protein
50 Gram(s)
Calcium
560 mg (43% DV)
Iron
1.5 mg (8% DV)
Sodium
550 mg (24% DV)
Potassium
760 mg (16% DV)
Tri-MG Infusion
3 Gram(s)
Market median: 5.0mg (298 products) 705 studies (A:5, B:123)
Market median: 500.0mg (180 products) 5 studies (A:0, B:1)

Other Ingredients

Maltodextrin Protein Blend Natural and Artificial flavors MCT Polydextrose Lecithin Titanium Dioxide Salt Acesulfame Potassium Sucralose
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

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

Clinically proven muscle strength & stamina Increase lean muscle mass with 40% fewer sets

Micronized aminos to help fuel muscles 740 Calories 50 g Protein 11 g BCAA 3 g Creatine Matrix 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 completed 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.

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

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.

Banned substance 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.

Metadata

Product Details

UPC / SKU0 48107 18570 1
DSLD Entry Date2020-05-22
Product TypeOther Combinations
FormPowder
DSLD ID221167
Data Updated2026-04-11
Research

Research Evidence

50
Research Sources
47
Avg Quality
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 PubMed DOI
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 PubMed DOI
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 PubMed DOI
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 PubMed DOI
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 PubMed DOI
B Consensus Guideline for the Diagnosis and Treatment of Tyrosine Hydroxylase (TH) Deficiency.
Guideline Journal of inherited metabolic disease 2025 PubMed DOI
B Baseline-dependent effect of dopamine's precursor L-tyrosine on working memory gating but not updating
Rct Cognitive, affective & behavioral neuroscience 2020 PubMed DOI
B Effect of Amino Acid Supplementation on Iron Regulation after Endurance Exercise
Rct Nutrients 2023 PubMed DOI
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 PubMed DOI
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 PubMed DOI
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.