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Syntrax Nutrition Matrix is a 2-pound, rBST-free protein powder featuring a premium blend of undenatured whey, micellar casein, and egg albumin with glutamine peptides. Designed for sustained muscle recovery and growth, it delivers 23 grams of protein per serving with real peanut butter cookie pieces for a smooth, instantly mixable shake. Perfect for pre- and post-workout nutrition, it’s halal, kosher, vegetarian, and highly rated by health-conscious professionals.












| ASIN | B00DOS9XEE |
| Age Range Description | Adult |
| Allergen Information | Milk, Soy |
| Best Sellers Rank | #23,761 in Health & Household ( See Top 100 in Health & Household ) #130 in Sports Nutrition Whey Protein Powders #4,747 in Sales & Deals |
| Brand | Syntrax |
| Brand Name | Syntrax |
| Customer Reviews | 4.5 out of 5 stars 585 Reviews |
| Diet Type | Halal, Kosher, Vegetarian |
| Flavor | Peanut Butter |
| Global Trade Identification Number | 00893912125301 |
| Item Dimensions | 6.25 x 6.25 x 10.25 inches |
| Item Nype Name | Protein Powder |
| Item Weight | 2 Pounds |
| Manufacturer | Si03, Inc |
| Manufacturer Part Number | M2BPB |
| Material Type Free | rBST-Free |
| Model Name | Matrix |
| Model Number | M2BPB |
| Net Content Volume | 32 Fluid Ounces |
| Number of Items | 1 |
| Package Type Name | Pouch |
| Product Benefits | Before, During, After Workouts, Extra Protein, Muscle Growth, Muscle Recovery, Weight Loss |
| Protein | 23 Grams |
| Protein Source | Blend |
| Recommended Uses For Product | Pre-Workout |
| Servings per Container | 25 |
| Total Servings Per Container | 25 |
| UPC | 785923542515 810007540092 893912125301 772195086939 810007540863 |
| Unit Count | 32.0 Ounce |
A**G
Gainz o clock
I would use this in my nightly shake. Easier to hit protein goals for those gainz! Tasted pretty good. I always mixed with water, raspberries, PB and honey maybe.
C**S
Best protein powder I've tried.
The taste is great. It doesn't taste grainy. Mixes right up with a shaker bottle. My bariatric doctor recommended them when I had weught loss surgery in 2010. I've been drinking them daily since and I've tried other shakes. I always come back to these. The cookies and cream, and mint cookie is delicious too.
S**A
Delicious!
In the past I tried the Nectar series of syntrax and really enjoyed their roadside lemonade and green apple(ecstasy?) so I know they made great tasting products. The peanut butter cookie flavor is phenomenal. It tastes just like a peanut butter cookie, and even has tiny bits of them . It reminds me of dunking a cookie in milk. I've been using it with oat milk, and also mixing it with their bananas and cream on occasion(until I ran out of one or the other), or chocolate flavored oat milk. Sometimes all three!
T**E
Matrix has the best tasting powders in the game.
Do yourself a favor and order a bag of Peanut Butter Cookie by Matrix.....honestly, it's the best tasting protein powder we have ever tasted. I made one for my sister, she doesn't partake in nutrition shales etc., she couldn't believe it when I told her it's a protein shake. I am on a journey to try all of the Matrix flavors.....Snickerdoodle is pretty good, but Peanut Butter Cookie is the bees' knees daddy-oh!
T**.
Great tasting protein shake
I decided to purchase this protein drink after a couple of my co-workers recommended it. They had both gone through weight loss surgery and were given this protein drink to use to before and after surgery. This protein drink is less powdery tasting than most other protein drinks that I have tried. The peanut butter flavoring in this drink does not taste anything like a peanut butter shake but it is better than any of the store bought peanut butter protein shakes. I actually purchased this one with the chocolate protein shake to make a peanut butter and chocolate protein shake. I would not recommend that! They both taste great separately but together the flavores do not mix well. I would recommend freezing the shake first. The taste is much better when it is really cold and the thickness created from mixing them makes it seem more like a frozen treat. If you are wondering if this shake will make you feel full.. It will! If you are disciplined enough to follow a plan this shake really does help with results.
C**6
Great tasting protein
Syntrax is known for the mix ability and smoothness of their protein powders. This one is no different. It mixes very well and is easy to drink. To me, tastes close enough to a peanut butter cookie to give it 5 stars. Definitely a keeper
S**D
The taste is ok but on the sweet side. The texture is good and it mixes ...
The taste is ok but on the sweet side. The texture is good and it mixes easily. I may try adding PB2 (powdered peanut butter) to cut down on the sweetness. It does actually taste like peanut butter cookie dough. The price is lower per ounce than a lot of powders. Overall I'd recommend it.
J**Y
Outstanding Flavor
I have been using Syntrax protein powders for over a decade. My buddy had been raving about this flavor for a while, so I gave it a shot. The Peanut Butter Cookie flavor is the best, by far. I mixed this flavor with 8oz of whole milk in a shaker bottle to try it, but normally I use water for other flavors. I will never go back to another flavor!
Trustpilot
2 weeks ago
2 months ago