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⏳ Fuel your gains all day, not just post-workout!
Syntrax Matrix is a 5 lb sustained-release protein powder blend combining ultrafiltered whey, micellar casein, egg albumin, and glutamine peptides. Designed for continuous amino acid delivery over 8 hours, it supports muscle recovery and growth with premium, rBST-free grass-fed whey and zero sugar, low carbs. Perfect for professionals seeking clean, effective nutrition that fits seamlessly into a busy lifestyle.












| ASIN | B09Y2C33YM |
| Age Range Description | Adult |
| Allergen Information | Egg may contain, Milk may contain, Soy may contain, Wheat may contain |
| Best Sellers Rank | #30,960 in Health & Household ( See Top 100 in Health & Household ) #169 in Sports Nutrition Whey Protein Powders |
| Brand | Syntrax |
| Brand Name | Syntrax |
| Customer Reviews | 4.7 out of 5 stars 52 Reviews |
| Diet Type | Halal, Kosher, Vegetarian |
| Flavor | Milk Chocolate |
| Global Trade Identification Number | 00810007540559 |
| Item Dimensions | 9 x 6 x 14 inches |
| Item Weight | 5 pounds |
| Manufacturer | Si03, Inc. |
| Manufacturer Part Number | SM5MC |
| Material Type Free | rBST-Free |
| Model Name | av2023-Syntrax-syntrax matrix native grassfed undenatured whey protein micellar casein and egg albumin with glutamine peptides-3f6731c2 |
| Model Number | SM5MC |
| Number of Items | 1 |
| Package Type Name | Pouch |
| Product Benefits | Consume Before, During, or After Workouts, Extra Protein, Muscle Growth, Muscle Recovery, Weight Management |
| Protein | 23 g |
| Protein Source | Blend |
| Recommended Uses For Product | Pre-Workout |
| Servings per Container | 73 |
| Supplement Formulation | Multi-Supplement |
| Total Servings Per Container | 73 |
| UPC | 810007540559 |
| Unit Count | 80 Ounce |
R**T
High Quality, Good Taste, Easy Mix
Top quality
A**R
Love the taste!
Great taste! My go to for many years now. New packaging design. I’m a milk chocolate fan. I put some ice cubes in, water, half a scoop of protein, and half a banana to start my day. I finish it quickly!
U**H
Good just mix it up good
I like the macros and the taste is good not very chemically . You do have to mix pretty aggressively so don’t expect to use a spoon . Texture is fine when mixed properly.
B**L
Matrix Milk Chocolate for the win!
If you live chocolate this is your protein! I have been using this brand for 10 years because it is creamy and not overly sweet like Premier Protein Shakes. I use unsweetened almond milk and mix several days worth at a time before I go to bed. I do this because for it to be creamy I let it sit overnight, if you mix and drink immediately it can be a little grainy. I have tried other brands over the years and go back to this one every time.
H**D
Solid Chocolate Protein with Good Mixability, but Not Their Best Flavor
I’ve tried a lot of protein powders, and this item ranks in my upper tier overall. It mixes well without much effort and doesn’t have the clumping issues or chalky texture that some blends do. The milk chocolate flavor is decent and easy to drink, but not exceptional. Compared to Syntrax’s Chocolate Supreme, this one falls a bit short in richness and overall taste. If both are available, I would always choose Chocolate Supreme instead. Nutritionally, it performs as expected for a sustained-release blend, and it provides a good level of satiety. No surprises there. Overall, this is a reliable, high-quality protein powder with good mixability and solid performance, but the flavor keeps it just below the top spot.
J**D
Love it
Great
M**N
Yummy
Great taste
L**O
Protein powder mixes completely!
I buy this consistently and have for years. It mixes completely in my morning coffee with no gritty residue ( if the mixer/frother is powerful enough).
Trustpilot
2 months ago
1 week ago