🟢 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

150 Gram(s) Serving Size
18 Servings
Other Combinations Product Type
0% Evidence Coverage

Supplement Facts — Evidence Check

Calories
600 {Calories}
Calories from Fat
110 {Calories}
Total Fat
12 Gram(s) (18% DV)
Cholesterol
85 mg (28% DV)
Sodium
170 mg (7% DV)
Potassium
780 mg (22% DV)
Total Carbohydrates
74 Gram(s) (25% DV)
Protein
50 Gram(s) (100% DV)
Vitamin A
(35% DV)
Vitamin C
(35% DV)
Calcium
(70% DV)
Iron
(40% DV)
(35% DV)
(40% DV)
(30% DV)
(35% DV)
(35% DV)
(35% DV)
(35% DV)
(35% DV)
(35% DV)
(40% DV)
(60% DV)
(50% DV)
(45% DV)
(35% DV)
(35% DV)
(80% DV)
4 Gram(s)
📊 Market median: 17.4mg (161 products)
Median 17.4mg This product: 4mg
2 Gram(s)
📊 Market median: 420.0mg (227 products)
Median 420.0mg This product: 2mg
Aminogen
250 mg

Other Ingredients

Maltodextrin RAPID RELEASE PROTEIN BLEND SUSTAINED RELEASE PROTEIN BLEND Waxy Maize Starch Lean Lipids Alkalized Cocoa powder Natural and Artificial flavor SOLUBLE CORN FIBER Fructo-Oligosaccharides Potassium Chloride Tricalcium Phosphate Acesulfame Potassium Sucralose Lactase Bromelain Papain Soy Lecithin

Label Claims — Verification

All Other
Structure/Function
All Other (96% of products) Structure/Function (80% of products) Nutrient (60% of products) Approved Health (1% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

DIRECTIONS and USE {image} 18-20 FL-OZ Mix 4 scoops (150g) into 18-20 fl-oz water The optimal time for a serving of MONSTER MASS is 30-45 minutes immediately after your workout. This timing is critical because your muscles absorb approximately 80% of the aminos and carbs necessary to help them grow during the two hour period immediately following exercise. Depending on your weight gain and calorie needs take Monster Mass as a snack or as a meal addition.

⚠️ Warnings & Precautions

THIS PRODUCT IS MANUFACTURED IN A FACILITY THAT PROCESSES MILK, SOY, WHEAT AND EGGS.

Do not use this product as your sole source of nutrition.

CONTAINS INGREDIENTS DERIVED FROM MILK AND SOY.

🧪 Formulation Notes

PROTEIN 50g CARBS 74g CALORIES 600 L-LEUCINE 8.4g

50% MORE LEUCINE MONSTER MASS is fortified with 4 grams of added L-Leucine to drive an industry leading 3:1:1 Ratio of BCAAs {molecular drawing} 3:1:1 LEUCINE ISOLEUCINE VALINE

RAPID RELEASE PROTEINS Whey Protein Concentrate, Whey Protein Isolate Whey Protein Hydrolysate

SUSTAINED RELEASE PROTEINS Whey Protein Concentrate, Milk Protein Isolate Micellar Casein, Caseinates

50g PROTEIN 4g ADDED L-LEUCINE 250mg AMINOGEN(R)

CONTAINS INGREDIENTS DERIVED FROM MILK AND SOY.

TYPICAL AMINO ACID PROFILE per 4 scoops 150g (50g Protein ESSENTIAL BCAA L-Isoleucine 2,495mg {molecular drawing} BCAA L-Leucine 8,465mg {molecular drawing} BCAA L-Valine 2,560mg {molecular drawing} L-Tryptophan 710mg {molecular drawing} L-Lysine 3,810mg {molecular drawing} L-Threonine 2,370mg {molecular drawing} L-Phenylalanine 1,625mg {molecular drawing} L-Methionine 955mg {molecular drawing} AMINO ACIDS NON-ESSENTIAL L-Alanine 1,830 {molecular drawing} L-Arginine 1,110mg {molecular drawing} L-Glycine 775mg {molecular drawing} L-Aspartic Acid 4,135mg {molecular drawing} L-Glutamine & Precursors 10,215mg {molecular drawing} L-Cysteine 945mg {molecular drawing} L-Histidine 945mg {molecular drawing} L-Tyrosine 1,570mg {molecular drawing} L-Proline 3,310mg {molecular drawing} L-Serine 2,175mg {molecular drawing}

Additional Information

PLEASE {recycle} RECYCLE

MADE IN USA

TASTE SATISFACTION GUARANTEED

Naturally & Artificially Flavored

Amino acid totals include amino acids from complete proteins. 1) Dreyer et al. Am J Physiol Endrocrinol Metab 294:E392-E400 (2008); 2) Fujita et al. J Phuysiologuy 582(2):813-23 (2007); 3) Koopman et al. Am J Physiol Endocrinol Metab 288:E645-53 (2005)

CytoSport products complement a healthful eating and hydration plan that, when combined with a balanced exercise program may contribute to healthy weight management and recovery from exercise. Use as part of a well-balanced diet that included whole foods and other protein sources.

L-79520 - REV04. 04/11

Our products are manufactured in compliance with NSF International's GMP for Sport Registration, including semi-annual audits, verifying that no NSF 306-Certification Guideline Annex A List banned substances exist in our facility.

Recent university research show that Leucine enriched beverages consumed with exercise synergistically activates and prolongs activity of mTOR signaling pathway, which increases muscle anabolic potential (muscle growth)**. 1,2,3 1 Monster Mass contains 50+% more leucine per gram protein than typical protein powders.

{molecule} = OXYGEN {molecule} = NITROGEN {molecule} = HYDROGEN {molecule} = CARBON {molecule} = SULFUR

50g PROTEIN MATRIX {clock} 0-2 HOURS

{clock} 2-6 HOURS

600 CALORIES MACRONUTRIENT DENSE FORMULA FOR MAXIMIZING LEAN MASS GAINS** 4g ADDED L-LEUCINE FOR mTOR PATHWAY ACTIVATION (MUSCLE PROTEIN SYNTHESIS)** 2g ADDED L-GLUTAMINE TO ENHANCE MUSCLE TISSUE RECOVERY/REPAIR** 250mg AMINOGEN(R) DIGESTIVE ENZYME COMPLEX FOR EFFICIENT PROTEIN DIGESTION AND UTILIZATION** CARBOHYDRATES DRIVE PROTEIN UTILIZATION CARBOHYDRATES TRIGGER INSULIN PRODUCTION WHICH IN TURN HELPS DRIVE AMINO ACID UPTAKE AND UTILIZATION BY MUSCLE TISSUES**

NEW POWERFUL FORMULA

MASS GAINING FORMULA WITH mTOR ACTIVATORS

PRE DURING POST

MANUFACTURED FREE OF BANNED SUBSTANCES IN A NSF GMP FOR SPORT REGISTERED FACILITY

NUTRITION HIGHLIGHTS

Science confirms what athletes have always known: high quality calories and protein intake is linked to muscle size and strength.

Our facilities are also inspected and regulated by the FDA. We carefully manufacture our powder products and ready-to-drink pre-blends onsite at our corporate campus in Benicia, California. Making efficacious products for athletes and active lifestyle individuals requires responsibility on all fronts. As our business has grown, so has our footprint. We have made environmental sustainability a focus and driver in everyday decision making. For more, please visit our website. Through it all, CytoSport has been committed to one thing, building athletes from the inside out. {signature} {signature} Greg and Mike Pickett, Father/Son

Product Details

UPC / SKU 6 60726 79520 0
DSLD Entry Date 2013-09-25
Product Type Other Combinations
Form Powder
Brand CytoSport
DSLD ID 26009
Data Updated 2026-04-11

Research Evidence

2 Research Sources
34 Avg Quality Score
1 Rct
D Effect of pantothenic acid and ascorbic acid supplementation on human skin wound healing process. A double-blind, prospective and randomized trial
Rct European surgical research. Europaische chirurgische Forschung. Recherches chirurgicales europeennes 1995
D Pantothenic Acid
View all evidence for Pantothenic Acid →

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