Muscle Building Protein Powder Blend*
Sustained Release Protein with Amino Acids for Longer Muscle Building Benefits*
8.4  out of 10  (4,080 Reviews)
3 Sizes
2 Lbs.
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1 Flavor
Cookies and Cream
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2 For $40
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Price: $24.99  ($1.14 / Serving)
Flavor Rating: 8.0
Buy 1 Get 1 50% Off
For a limited time, buy 1 Phase8, 4.4 Lbs. & get 1 50% OFF!
Buy 2 For $40
For a limited time, buy 2 Phase8, 2 Lbs. for $40!

Product Overview

MuscleTech Phase8
Build Muscle, Size and Strength
  • Provides high biological value and sustained release protein*
  • 8 hours of amino acid delivery*
  • Increases muscle size and strength*

PHASE8 is a premium blended protein formula that feeds your muscles for 8 hours. Each scoop contains an impressive 26-gram blend of milk-derived proteins that supplies a sustained-release of amino acids. PHASE8 has a superior, clean macronutrient profile with only half the carbs and fat of the leading competitor.*

The main protein component in PHASE8 has the unique ability to release amino acids in your bloodstream for 8 hours after taking it.1 Because of these sustained-release properties, it’s a highly anabolic and anti-catabolic protein that helps create a muscle-building environment for longer periods of time.*


1. Lacroix et al., 2006. The American Journal of Clinical Nutrition. 84:1070-9.










Overall, PHASE8 contains only high-quality milk-derived protein sources designed to digest at different rates, putting your body in the perfect state for repair and recovery. Unlike other protein blends, you won’t find any low quality proteins like rice protein in PHASE8.

  • 97% Whey Protein Isolate
  • Hydrolyzed Whey Protein Isolate
  • Whey Protein Isolate
  • Whey Protein Concentrate
  • Milk Protein Concentrate
  • Calcium Caseinate
  • Micellar Casein
Protein 26g 22g 24g
Protein Sources All high-quality
proteins and
egg protein
Low biological value brown
rice protein along with egg
and milk-derived proteins
Carbs 8g up to 15g 9g
Fats 1.5g up to 6g 2g

PHASE8 contains a unique blend of proteins that allows you to take it whenever you need it. The multi-phase protein delivery supplies the needed quick release of amino acids for post-workout amino acid delivery, the medium release protein phase for between meals, and the slow-digesting protein phase for night time use.


PHASE8 was flavored by one of the world’s top flavoring houses by protein flavoring experts in order to taste better than any other protein on the market.

Ratings & Reviews

Overall Rating
4,080 Ratings
Verified Buyer Rating
1,213 Ratings
Average Flavor Rating
4 Flavors
Top Rated Flavor
Milk Chocolate
By clicking the button above, you agree to entering the Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
Oct 15, 2018
  • 9 Vanilla

Love taking this protein throughout the day and before bed to keep my protein intake on point! The flavor is awesome and the high amount of BCAA's is a huge help.

Oct 15, 2018
  • 10 Milk Chocolate

This protein is an amazing supplement to have on hand. It is low in carbs and taste amazing with water or milk. It makes a great in between meals snack also to help reach your daily protein goals. I definitely recommend this product.

Oct 15, 2018
  • 8 Milk Chocolate

This protein is a good option for somebody wanting a slow release of protein. I like it has amino acids in it. It taste good and mixed well too.

Oct 13, 2018
  • 10 Vanilla

I highly recommend this protein. It is a very fine powdery substance that tastes great. It’s a little hard to mix with water though. Some other proteins I have used tasted strong when it didn’t mix well, this wasn’t the case. Milk might be a good substitute, but I cannot do milk so I didn’t try. I would take the protein either before bed or work, and felt like it would cut down on some of my cravings. I felt the effects lasted a little longer than some of the others I’ve used in the past. Overall, I’ve seen great results the past few weeks.

Oct 12, 2018
  • 6 Vanilla

I got the vanilla flavor, which was okay but not great. If I were to do it over, I would probably go with the chocolate. The protein is good quality. It dissolves well in water and goes down easy with little to no clumps. The only complaint, which is minor, is the high level of sodium. I find it causes me to retain a lot of water and bloat.

Oct 11, 2018
  • 1 Vanilla

This was a fantastic tasting product! I do enjoy vanilla much more than chocolate products it’s a more satisfying taste! Love the 2:1 not to mention with the glutamine as well! Definitely recommend for anyone looking for a great quality protein with the extras!

Oct 11, 2018
  • 10 Vanilla

This is a great product for recovery. I usually run 8-10 miles 4-5 times a week and go to the gym 4 days a week, and this product allows me to do that. The slow release tends to stick with me better and provides faster recovery than typical fast release protein powders. Also, the taste is quite good and it mixes well and effortless with my blender bottle. I'm glad I bought this, I'll continue to buy more!

Oct 10, 2018
  • 9 Vanilla

For my use I used it twice a day, once during breakfast and once post workout. I love the 8 hour concept because my eating and workout times aren’t always the same time each day. The taste was great and super easy to mix like all the Muscletech products.

Oct 10, 2018
  • 10 Milk Chocolate

I would like to recommend this product to anyone seeking to supplement their protein intake. The flavor I tried was Chocolate. The protein content per scoop is high when compared to other brands. The products tastes great. Another thing I liked was the ability for the powder to easily mix with water making it adequate for taking to the gym in a shaker bottle. MuscleTech product have not disappointed me. Recommend!

Oct 09, 2018
  • 9 Vanilla

I love, love Phase 8 protein, I pour a scoop with milk blend it and then pour cereal and it tastes amazing. I love that benefits that it has because I can take it before going to sleep and wake up refreshed and even energized. I recently tried it with eggs and banana to create pancakes and it is amazing, I was full for hours plus the taste is really good.

Oct 09, 2018
  • 8 Milk Chocolate

Taste is good wish it mixed better.

Oct 08, 2018
  • 9 Milk Chocolate

I started using MuscleTech Phase8 Protein a little over two weeks ago to see if would feed my body over an extended period of time, while helping me recover faster from my workouts, and I believe it has. It mixes well, tastes good, doesn't make me feel bloated, and makes me feel better during and after workouts. I highly recommend MuscleTech Phase8 Protein.

Oct 08, 2018
  • 9 Milk Chocolate

This product is great. It keeps me full, gets me through a workout, or is a great post-workout snack. The taste is great and for me it mixes well. I use almond milk.

Oct 06, 2018
  • 9 Vanilla

Protein, BCAAs, and glutamine blended into one drink. This is a complete win if you do not have to take each one separately. I like the taste too and always add mines to milk for that extra protein.

Oct 05, 2018
  • 10 Milk Chocolate

By far the best tasting protein I've ever had! I noticed lean muscle within two weeks working out three times a week. Great flavor I blend it with spinach kale and ginger.

2 For $40
2 Lbs.
2 Lbs.
22 Servings | $1.14 Per Serving
2.2 Lbs.
2.2 Lbs.
24 Servings | $1.08 Per Serving
Buy 1 Get 1 50% Off
4.4 Lbs.
4.4 Lbs.
50 Servings | $0.90 Per Serving

What's in MuscleTech Phase8

2 Lbs. Cookies And Cream
Serving Size 1 Scoop (42 g)
Servings Per Container Approx.22
Amount Per Serving % Daily Value
Calories 150       
Calories From Fat 15       
Total Fat 1.5 g 2%*
Saturated Fat 1 g 5%*
Cholesterol 50 mg 17%
Total Carbohydrate 8 g 3%*
Sugars 2 g
Protein 26 g 52%*
Calcium 490 mg 47%
Sodium 160 mg 7%
Digestive Enzyme Matrix 100 mg
Papain 50 mg
Amylase 50 mg
* Percent Daily Values are based on a 2,000 calorie diet
† Daily Value not established
Protein Blend [Whey Protein Concentrate, Milk Protein Isolate (Supplying Micellar Casein and Whey), Micellar Casein, Calcium Caseinate, Whey Protein Isolate 97%, Whey Protein Isolate, Hydrolyzed Whey Protein Isolate], Maltodextrin, Natural and Artificial Flavor, Cookie Crumble Pieces [Enriched Flour, (Wheat Flour, Niacin, Iron, Thiamin Mononitrate, Riboflavin, Folic Acid), Sugar, Vegetable Oil (Soybean Oil, and Palm Kernel Oil, TBHQ (Preservative)), Cocoa Powder (Processed with Alkali), Fructose Corn Syrup, Degerminated Yellow Corn Flour, Chocolate, Salt, Dextrose, Baking Soda, Whey, Soy Lecithin], Calcium Carbonate, Salt, Guar Gum, Acesulfame-Potassium, Silicon Dioxide, Sucralose, Soy or Sunflower Lecithin
Contains wheat, milk and soy ingredients. Processed in a facility that processes wheat, egg, tree nut, fish and shellfish ingredients.

Directions For Phase8: Mix 1 serving (1 scoop) with 8 oz. of cold water or skim milk in a glass or shaker cup. For best results, mix 2 servings (2 scoops) with 16 oz. of water or skim milk. Use between major meals and after exercise. Drink 8 to 10 glasses of water daily. For maximum results, consume 4 scoops daily for a minimum of 6 weeks.

Warnings: Do not use if pregnant or nursing. Consult a medical doctor if you have a medical condition or before starting any diet or exercise program. KEEP OUT OF REACH OF CHILDREN.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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