🟢 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

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

Supplement Facts — Evidence Check

Calories
140 Calorie(s)
Total Fat
0.5 Gram(s) (1% DV)
Cholesterol
20 mg (7% DV)
Total Carbohydrates
9 Gram(s) (3% DV)
Protein
24 Gram(s) (48% DV)
Calcium
580 mg (45% DV)
Iron
0.9 mg (5% DV)
Sodium
180 mg (8% DV)
Potassium
220 mg (5% DV)

Other Ingredients

Milk Protein Isolate Micellar Casein Whey Micellar Casein Maltodextrin Cocoa Salt Natural & Artificial Flavors Cellulose Gum Xanthan Gum Carrageenan Acesulfame Potassium Sucralose Lecithin

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (99% of products) Structure/Function (85% of products) Nutrient (54% of products) Approved Health (3% of products)

Target Groups

Adult (18 - 50 Years) Women (not pregnant or lactating) Gluten Free

Product Information

📋 Directions for Use

Take Six Star Casein Protein between meals and before bedtime.

For best results, stack with: Use 30 to 45 minutes before workout Pre-workout powder engineered to enhance muscle performance, increase energy and got you pumped while you train. Pre-& post workout, between meals Advanced whey protein formula designed to help build muscle and strength.

For best results, take prior to going to bed

How to make the perfect whey protein shake: Shake or blend Tip: Try blending with ice, your favorite fruit, juice, peanut butter, or anything else you enjoy for a delicious smoothie. Directions: Mix 1 scoop (1 serving) with 10 oz. of skim milk or water. Take 1 to 2 servings per day, one of which before bed. For full effects, take 2 servings at once. Do not exceed 2 scoops (2 servings) in a 24-hour period. Read the entire label before use and follow directions provided.

Shake container before use.

⚠️ Warnings & Precautions

Contains milk and soy ingredients. Processed in a facility that also processes wheat, tree nut and egg ingredients.

Notice: Use this product as a food supplement only. Do not use for weight reduction.

Warning: Do not use if you are pregnant or nursing.

Consult a medical doctor before starting a diet or exercise program or if you have a medical condition.

Keep out of reach of children.

Do not use if packaging has been tampered with.

🧪 Formulation Notes

Six Star Casein Protein in engineered for all athletes

Formulated with 24g of high-quality protein for prolonged amino acid delivery for up to 8 hours, Six Star Casein Protein is the fuel you need at any time of the day, best taken before bed, and is engineered for all athletes.

Six Star Casein Protein is for: Active men & women Strength trainers Athletics Fitness enthusiasts Body builders Endurance athletes

Benefits of Six Star Casein Protein: -Provides sustained-release casein protein -Casein protein component prolongs amino acid delivery -Delivers 24g of protein in every serving -Provides the BCAAs leucine, isoleucine and valine -Supports muscle recovery when used to help you meet your daily protein requirements

Powered by Sustained-Release Casein Protein 100% of the casein protein component in Six Star Casein Protein is high-quality casein, which is a slow-release form of protein that contains essential, non-essential and branched chain amino acids - and with added milk protein, you get a sustained release for up to eight hours.

Prolonged amino acid delivery before bed Research has shown that casein protein has a slow absorption rate into the bloodstream, which results in sustained amino acid delivery. This slower digestion and delivery help feed your muscle with a continued flow of powerful amino acids.

8-hour sustained 8:HR release protein

24g total protein per scoop 5g total BCAAs per scoop

Gluten free

Slow-digesting casein protein for extended amino acid release

Builds muscle & strength

Zero aspartame

Natural & artificial flavor

Six Star Casein Protein is manufactured according to cGMP standards, as is required for all dietary supplements.

This product is sold by weight, so some settling may occur.

Additional Information

From America's #1 selling Body Building Supplement Brand 170 million bottles sold! 20 years of excellence Leader in science A portion of every dollar to more research $

Guaranteed banned substance free cGMP Manufactured Manufactured according to cGMP standards, as is required for all dietary supplements

American Masters of Taste Gold superior taste

Made in the USA From domestic & international ingredients

Six Star Casein Protein is from the makers of MuscleTech, America's #1 selling body building supplement brand, so you know it's a powerful formula you can trust. Whether it's your first time at the gym or you're a seasoned vet, pro athlete or just trying to gain that extra edge in your sport, everyone is an athlete, and every athlete needs to fuel their body with the best sports nutrition products available.

Award winning taste you will love The American Masters of Taste, a prestigious panel of chefs and flavor experts, awarded Six Star Casein Protein the gold medal for superior taste. Trust Six Star Casein Protein for optimum performance and award-winning taste you'll love.

For more info, recipes, tips and to join the conversation, visit SixStarPro.com Find us on Facebook @SixStarPro Twitter sixstarpronutrition Instagram T.J Watt Professional football player Tobin Heath National team player

From the makers of Muscletech

Made in the USA from domestic & international ingredients

Mixes instantly

Muscletech is America's #1 selling body building supplement brand based on cumulative wholesale dollar sales 2001 to present.

Store in a cool, dry place (60 degrees F to 80 degrees F).

Note: To maintain product freshness, store in a cool dry place.

Product Details

UPC / SKU 6 31656 70710 6
DSLD Entry Date 2023-02-21
Product Type Amino acid/Protein
Form Powder
DSLD ID 284031
Data Updated 2026-04-11

Research Evidence

849 Research Sources
56 Avg Quality Score
450 Meta Analysis
152 Rct
137 Systematic Review
73 Clinical Trial
11 Regulatory Source
7 Other
7 Guideline
3 Openfda Safety
2 Cochrane Review
2 Observational
A Phosphate binders for preventing and treating chronic kidney disease-mineral and bone disorder (CKD-MBD)
Meta Analysis The Cochrane database of systematic reviews 2018
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2024
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin and mineral supplementation for maintaining cognitive function in cognitively healthy people in mid and late life
Meta Analysis The Cochrane database of systematic reviews 2018
A Calcium supplementation during pregnancy for preventing hypertensive disorders and related problems
Meta Analysis The Cochrane database of systematic reviews 2025
A Dietary calcium supplementation for preventing colorectal cancer and adenomatous polyps
Systematic Review The Cochrane database of systematic reviews 2008
A Calcium and vitamin D for increasing bone mineral density in premenopausal women
Systematic Review The Cochrane database of systematic reviews 2023
A Dietary sodium, sodium-to-potassium ratio, and risk of stroke: A systematic review and nonlinear dose-response meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2019
A The association between circulating magnesium and clinically relevant outcomes in patients with chronic kidney disease: A systematic review and meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2021
A Calcium channel blockers versus other classes of drugs for hypertension
Systematic Review The Cochrane database of systematic reviews 2021
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