Muscle Building Protein Powder Blend*
Sustained Release Protein with Amino Acids for Longer Muscle Building Benefits*
8.4  out of 10  (4,119 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
4,119 Ratings
Verified Buyer Rating
1,216 Ratings
Average Flavor Rating
8 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.
Nov 14, 2018
Verified Buyer
  • 10 Strawberry
  • 9 Milk Chocolate
Oct 30, 2018
  • 10 Milk Chocolate

One of the best protein powders on the market these days. MuscleTech has come a long way in the last 5 years or so.

Oct 27, 2018
Verified Buyer
  • 10 Milk Chocolate

Good quality product that mixes well and Tate great.

Oct 25, 2018
  • 10 Milk Chocolate

I love this protein powder. I often will mix it with coffee and a bit of milk. The taste is great and the texture is great. It mixes well and digests well. It is a great way to build lean muscle.

Oct 24, 2018
  • 10 Milk Chocolate

Great taste, great texture, great value. Completes my workout when I have a protein shake immediately following.

Oct 23, 2018
  • 9 Milk Chocolate

I loved this product for more than once reason, 1. MuscleTech does a fantastic job with flavor. 2. It’s easy to mix, some protein powder doesn’t break down or stays a little chunky no matter how much you shake. Phase 8 has outstanding mix ability. 3. When I usually wake up in the mornings I’m extremely hungry but after 4 days of being on phase 8 I was not waking up as hungry or not at all so I knew that the protein was still doing work in my system which is a exactly what it’s supposed to do.

Oct 22, 2018
  • 10 Vanilla

The vanilla flavor is superb, and it mixes very well in even just water! It provides very sustained energy as well. Excellent protein!

Oct 20, 2018
  • 7 Milk Chocolate

Ok taste. Easy on the stomach. Definitely supports my lean muscle gain. Prefer premium gold over this one

Oct 20, 2018
  • 10 Vanilla

Product is great I take it before I sleep and wake up feeling great good for another workout takes the soreness out.. wil help if you train everyday to recover muscles

Oct 19, 2018
  • 10 Vanilla

Great taste. Mixable. Easy to digest. Easy on the stomach. Definitely supports my lean muscle gain. I would 100% recommend this to anyone looking for an edge in their diet.

Oct 19, 2018

Phase 8 is a great product. Hands down one of the best tasting protiens ive tried. I love taking it before i go to bed and even adding it to my oatmeal for breakfast. It keeps my muscles fueled for up to 8 hours which is great for my active lifestyle

Oct 19, 2018
  • 7 Milk Chocolate

I love MuscleTech products and is a huge supporter. This product for me was quite disappointing. The container was alittle more than halfway full and caused me some bloating/gas issues. I believe it was because of the mixture of the different types of protein in the product. Overall the macros are great for anyone trying to lose or gain mass!

Oct 19, 2018
  • 10 Vanilla

I am super picky about protein supplements. The usual powder vanillas I’ve tried aren’t the best tasting and a little grainy whereas this had a great flavor, and creamy, and really kept my full and strong all day. This product was great to help with muscle building.

Oct 19, 2018
  • 9 Vanilla

Great taste mixes well!!! Been trying lots of different proteins lately and will definitely use this one again!

Oct 19, 2018
  • 10 Milk Chocolate

Another great product by MuscleTech. Phase 8 helped me gain 3 pounds with the phase 8. I mainly used it at night to hold me over till the morning. I woke up not hungry and felt great. I would recommend this product.

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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