BioStacks
Best for
Ingredients (5)
Whey Protein isolate
82%Dose
16.3 g
Target
20–30 g
Form
Premium
Micellar Casein
68%Dose
13.7 g
Target
20–40 g
Form
Budget
Magnesium
13 mgTrace amount — not scored
Phosphorus
173 mgTrace amount — not scored
Calcium
389 mgTrace amount — not scored
Nutrition
Calories, macros & sodium.
- Sodium85 mg
Other Ingredients (5)
SucraloseSweetener
Dose context matters. As a trace excipient in a tablet coating or capsule, the amount is minimal and not a meaningful concern. The evidence below applies to the gram-level intakes typical of sweetened protein powders, pre-workouts, and drink mixes: a 2022 human trial (Suez et al., Cell) showed sucralose disrupts gut bacteria and worsens blood sugar control in healthy adults, and a 2023 study (Schiffman et al.) found that sucralose-6-acetate — a compound formed when sucralose is digested — was genotoxic to human cells in vitro. It remains an artificial sweetener with no nutritional purpose.
Natural FlavorsFlavor
Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.
Sea SaltFlavor
Basic food-grade salt used for taste in supplements
Sunflower LecithinEmulsifier
Non-GMO, non-allergenic emulsifier derived from sunflower seeds
Xanthan GumThickener
Natural thickener from fermented carbohydrates
How to Take It
Take it anytime
Total daily protein is what matters — the post-workout "anabolic window" has not held up in controlled trials.
With or without food
On the label
Add 1 heaping scoop of Muscle Matrix with 6 ounces of cold water or beverage (milk, almond milk, rice milk, juice, etc.) and mix in a shaker cup. To make a creamy smoothie add 2-3 ice cubes and put in a blender for 20-30 seconds. Vary the amount of liquid to meet your desired taste and consistency.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$51.99
Near the median of 165 muscle supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.