I've used critical mass for
"I've used critical mass for years and it is easily the best. Great gains and great taste! And Get Yok'd has great prices."
Myogenix AfterShock Critical Mass is a lean mass gainer containing high-quality calories your body needs to build muscle — not a fat gut. Building mass requires a surplus of calories, but they must be quality calories from food sources that don't wreak havoc on your blood sugar levels and digestive system. Critical Mass uses primarily zero-lactose Whey Protein Isolate and Milk Protein Isolate, which are easy to digest, while keeping an ideal 2:1 ratio of carbs to protein — 94g carbs to 60g protein per serving. Each 2-scoop (182g) serving delivers 700 calories, 9g fat, and a 5g Amino Stack of Micronized Creatine Monohydrate, MagnaPower™ Creatine, and L-Glutamine. In water, Critical Mass tastes amazing in Cookies N' Cream Milkshake flavor — make it even more delicious and calorie-dense by adding milk, fresh fruit, peanut butter, or oatmeal and blending. Mix one serving (182g) with 16oz of water and enjoy. 15 servings per 6.01 lb (2730g) bag. Contains Milk.†
Calories: 700
Total Fat: 9g (12% DV)
Saturated Fat: 2g (10% DV)
Cholesterol: 85mg (28% DV)
Sodium: 380mg (17% DV)
Total Carbohydrate: 94g (36% DV)
Dietary Fiber: 2g (7% DV)
Total Sugars: 15g (includes 15g Added Sugars, 30% DV)
Protein: 60g (124% DV)
Vitamin D: 0mg (0% DV)
Calcium: 681mg (50% DV)
Iron: 1mg (6% DV)
Potassium: 301mg (6% DV)
Amino Stack™ — 5g (Micronized Creatine Monohydrate, MagnaPower™ Creatine, L-Glutamine)
Critical Mass Carbs™ (Maltodextrin, Oat Bran, Yam)
Critical Mass Amino Stack™ Protein Blend (Whey Protein Isolate, Milk Protein Isolate, Ultra Filtered Whey Protein Concentrate)
Cane Juice Solids
Mass Fat™ (Creamer, MCT Powder)
Cocoa Powder, Natural & Artificial Flavors
Cookie Crumbs (Tapioca Starch, Rice Flour, Sugar, Cocoa Processed with Alkali, Palm Oil, Salt, Chocolate Liquor, Natural Flavor, Sodium Bicarbonate)
Sucralose, Xanthan Gum
Allergen Statement: Contains Milk
15 servings per 6.01 lb (2730g) bag
Made in a cGMP facility in the USA
California Prop 65 Warning applies.
Critical Mass keeps an ideal ratio of 2:1 carbs to protein — 94g carbs to 60g protein per serving. Many competing mass gainers use a much higher carb-to-protein ratio, sometimes 5:1 or worse, often padding out their formula with 250g or more of cheap carbohydrate per serving — more than half a pound of material, largely from inexpensive maltodextrin that breaks down and spikes blood sugar faster than table sugar. Critical Mass's more moderate, protein-forward ratio is designed to support a caloric surplus for muscle building without the exaggerated insulin response and sluggish, bloated feeling that carb-heavy gainers commonly produce.†
Critical Mass is ideal for individuals sensitive to lactose because it's built primarily around Whey Protein Isolate and Milk Protein Isolate — both significantly lower in lactose than the whey protein concentrate that many cheaper mass gainers rely on almost entirely. The formula does include a smaller amount of Ultra Filtered Whey Protein Concentrate as part of the blend, but the isolate-forward approach is specifically why Myogenix markets Critical Mass around digesting easily, without the bloating and GI discomfort that heavier, concentrate-based gainers commonly cause.†
Each serving includes a 5g Amino Stack™ combining Micronized Creatine Monohydrate, MagnaPower™ Creatine (a magnesium-bound creatine chelate), and L-Glutamine. This dual-creatine approach provides both the well-established Creatine Monohydrate form and MagnaPower's magnesium-chelated creatine, which has its own research on ATP regeneration support, while L-Glutamine rounds out the stack with recovery and gut-health support — a meaningful built-in bonus that saves you from needing to add a separate creatine or glutamine product to your stack.†
Critical Mass Carbs™ combines Maltodextrin, Oat Bran, and Yam for a mixed-speed carbohydrate profile — providing both rapidly available energy and more sustained-release carbohydrate sources rather than relying on a single fast-digesting carb alone. Mass Fat™ (Creamer and MCT Powder) contributes the formula's fat and calorie density, with MCT Powder specifically providing medium-chain triglycerides that are more readily used for energy than longer-chain fats, adding calorie density without excessive impact on digestion time.†
Is Critical Mass actually lactose-free?
Critical Mass uses primarily zero-lactose Whey Protein Isolate and Milk Protein Isolate, making it a meaningfully better option for lactose-sensitive individuals than concentrate-heavy gainers. The formula does include a smaller amount of Ultra Filtered Whey Protein Concentrate as part of the blend, so it isn't strictly 100% lactose-free — those with severe lactose intolerance should still exercise judgment.†
Can I add anything to make Critical Mass more calorie-dense?
Yes — Myogenix specifically recommends adding milk, fresh fruit, peanut butter, or oatmeal and blending for additional high-quality calories beyond the base 700-calorie serving.†
Do I need to add creatine or glutamine separately?
No — each serving already includes a 5g Amino Stack™ of Micronized Creatine Monohydrate, MagnaPower™ Creatine, and L-Glutamine built directly into the formula.†
How many times a day should I drink Critical Mass?
Mix and drink after workouts or between meals to help build muscle and gain weight — frequency depends on your individual calorie needs and how much of a surplus you're targeting for your goals.†
Mix one serving (2 scoops / 182g) with 16oz of water and enjoy. For added calories and a thicker, more milkshake-like consistency, blend with milk, fresh fruit, peanut butter, or cooked oatmeal. Consume after workouts or between meals to help build muscle and gain weight. Consult your healthcare professional prior to use if you have or suspect a medical condition, are taking prescription drugs, or are pregnant or lactating. Store in a cool, dry place away from sunlight. Contains Milk. Keep out of reach of children.
Real-time inventory across all five Southern California stores
Available in Burbank, Glendale, Glendale Galleria, Pasadena, and North Hollywood
Authorized Myogenix retailer — carrying Critical Mass alongside Myogenix's AfterShock post-workout and full recovery lineup
Staff who can tell you which Critical Mass flavors are currently in stock
One of the best loyalty programs in the supplement industry — earn rewards on every purchase
Contains Milk — not appropriate for individuals with milk allergy; contains some lactose despite the primarily isolate-based protein blend
Individuals with diabetes or blood sugar regulation concerns should consult a physician — 94g of carbohydrate (including 15g added sugar) per serving is a substantial carbohydrate load
Individuals managing daily calorie intake should account for the 700-calorie content per serving
Individuals with kidney disease should consult a physician — high daily protein and creatine content increases renal processing demand
Not for pregnant or nursing women without physician clearance
Consult a physician before use if taking any prescription medications or having any medical condition
California Prop 65 Warning applies.
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.
Overall rating: 3.0 / 5 from 2 reviews.
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"I've used critical mass for years and it is easily the best. Great gains and great taste! And Get Yok'd has great prices."
"Great all-in-one product for those who want more protein in their gainer. Great tasting, easy on the stomach, and easy to mix. At first, I was a bit hesitant because my gut doesn't agree with creatine monohydrate, but the glutamine in this gainer helps it go down easily."