| Flavour |
Chocolate, Vanilla |
|---|---|
| Size |
12 LB |
Optimum Nutrition Serious Mass 12Lb
$599.00 Original price was: $599.00.$449.25Current price is: $449.25.
OPTIMUM NUTRITION Serious Mass – Maximum Calorie & Protein Support
Fuel your muscle building and weight gain goals with Serious Mass, the highest-calorie weight gain formula from OPTIMUM NUTRITION. Each serving delivers an impressive 1250-1260 calories, 50g of protein, 250-253g of carbohydrates, and 5g of creatine monohydrate to support intense workouts and recovery.
Formulated with fast-digesting whey protein concentrate from milk, this powerful shake provides the essential macros for athletes aiming to maximize performance and muscle growth. 19 vitamins and minerals are included to support your overall nutrition, plus 8g of naturally occurring glutamine per serving to aid recovery.
This value bundle contains two 12lb tubs, and you can choose from five delicious flavors to keep your routine flavorful and exciting.
✔ Supports Muscle Building & Weight Gain
✔ 1250-1260 Calories & 50g Protein per Serving
✔ 250-253g Carbs & 5g Creatine per Serving
✔ Contains 19 Vitamins & Minerals
✔ 16 Servings
✔ Delicious Flavors for a Tasty Routine
✔ Trusted by Elite Strength Athletes Worldwide
OPTIMUM NUTRITION Serious Mass: The ultimate formula for those who need serious muscle support!
Related products
Magnum 400g Creatine (80 Servings)
Magnum Essentials Creatine 100 – Pure Micronized Power
Fuel your strength and performance with Magnum Essentials Creatine 100, a premium 100% pure, micronized creatine monohydrate formula. Designed for maximum purity and potency, this single-ingredient supplement supports muscle strength, endurance, and recovery—with no fillers or additives.
✔ 5g of pure creatine monohydrate per serving
✔ Unflavored for easy mixing with your favorite beverage
✔ Micronized for better absorption and solubility
✔ Supports strength, power, and muscle recovery
✔ 80 Servings
Mix it effortlessly into your pre- or post-workout shake and power up your training with Magnum Essentials Creatine 100—your go-to for clean, effective muscle support.
Simply L-Carnitine 3000mg Fruit Punch -32 servings
Brand: Simply
Flavor: Fruit Punch Variant
Servings per Container: 32
L-Carnitine per Serving: 3000 mg
Item Weight/Form: Liquid / Supplement
Key Features:
-
Powerful 3000 mg of L-Carnitine per serving to support fat burning and metabolism
-
Stimulant-free formula — no caffeine, no jitters
-
Refreshing fruit punch flavor that mixes nicely with water
-
Supports endurance, energy, and helps preserve lean muscle during calorie deficits
-
Easy liquid formula — no pills, no powder mess
Suggested Use:
Take 1 serving (1 scoop) mixed with 8-10 oz of water once daily, preferably 30 minutes before exercise or whenever you desire an energy/fat-burning support.
Optimum Nutrition Gold Standard Pre-Workout, Vitamin D for Immune Support, with Creatine, 30 Servings
Brand: Optimum Nutrition
Product: Gold Standard Pre-Workout with Vitamin D & Creatine
Servings per Container: 30
Key Ingredients per Serving: 3 g Creatine Monohydrate, 1.5 g Beta-Alanine, 175 mg Caffeine, Vitamin D
Key Features:
-
Provides 175 mg of caffeine from natural sources to increase focus, energy, and performance
-
3 g of creatine monohydrate per serving to support strength and power output
-
1.5 g beta-alanine to help delay muscle fatigue during intense training
-
Includes Vitamin D to support immune health
-
Tested for banned substances and quality assurance
Suggested Use:
Mix one scoop with 8 oz of cold water and consume 20–30 minutes before training.
Man Sport ISO-Protein – 20 Servings
- Whey Protein Isolate. Made with zero sugars and low carbs, Man Sports Whey Protein Powder delivers high quality protein with great tasting flavors that we’re sure you’ll love! With 25 grams of protein and only 110 calories per serving, the possibilities are limitless!
- Whey Protein Isolate. Made with zero sugars and low carbs, Man Sports Whey Protein Powder delivers high quality protein with great tasting flavors that we’re sure you’ll love! With 25 grams of protein and only 110 calories per serving, the possibilities are limitless!
- Muscle Building Formula. Our premium quality Whey Protein offers 90% complete Protein Powder that the body utilizes for muscle growth, repairing muscle tissue, and delivering that much needed energy boost for your workout.
- How to Use. The Whey Protein Powder can be mixed with any liquid of your choice. Simply mix 1 serving with 8 ounces of liquid and mix or shake until fully incorporated. It is best to drink within 30 minutes of your workout, or steadily throughout the day based on your protein needs.
- Taste the Difference. Man Sports has set out on a mission to switch up the game, introducing new and exciting flavors for traditional supplements. With fitness junkies in mind, we’ve continued to develop our line of products, producing only quality supplements and flavors to help keep your routine exciting!
Insane Labz Psychotic Black Edition Mid Stimulant Pre Workout (35 Servings)
- INSANE ENERGY. Introducing the latest and greatest addition to the Psychotic family, BLACK. The Asylum faithful asked for a new Psychotic that had less caffeine but still packed an insane punch and we delivered. Loaded with Infinergy, Caffeine and Tyrosine, Psychotic BLACK will not disappoint.
- NO CRASH FORMULATED. Psychotic is formulated for long lasting energy, focus and endurance that keeps you going and going without the jitters.
- INSANE FLAVORS. Psychotic BLACK comes in five amazing flavors, Blue Raspberry, Fruit Punch, Grape, Gummy Candy and Watermelon.
- INSANE ENERGY - The Asylum faithful asked for a Psychotic that had less caffeine -- but still packed an INSANE punch. We went to work and we delivered. Loaded with Infinergy, Caffeine, and Tyrosine, Psychotic BLACK will not disappoint.
- NO CRASH FORMULATED - Psychotic is formulated for long-lasting energy, focus, and endurance that keeps you going and going, without the jitters.
- PSYCHOTIC STRENGTH - Psychotic BLACK features a unique formula, developed to increase strength and build lean muscle that the name Psychotic is known for!
Caffeine content from all sources: 200mg 35 Servings
Magnum 1000g Creatine (200 Servings)
Magnum Essentials Creatine 100 – Pure Micronized Power
Fuel your strength and performance with Magnum Essentials Creatine 100, a premium 100% pure, micronized creatine monohydrate formula. Designed for maximum purity and potency, this single-ingredient supplement supports muscle strength, endurance, and recovery—with no fillers or additives.
✔ 5g of pure creatine monohydrate per serving
✔ Unflavored for easy mixing with your favorite beverage
✔ Micronized for better absorption and solubility
✔ Supports strength, power, and muscle recovery
✔ 80 Servings
Mix it effortlessly into your pre- or post-workout shake and power up your training with Magnum Essentials Creatine 100—your go-to for clean, effective muscle support.
Insane Labz Psychotic Gold, High Stimulant Pre Workout Powder (35 Servings)
Psychotic Gold Pre-Workout – Extreme Energy, Focus & Pumps
Take your workouts to the next level with Psychotic Gold, the ultimate high-stimulant pre-workout designed for insane pumps, razor-sharp focus, and relentless energy. This formula amplifies vascularity, delivering oxygen-rich blood to your muscles so you can train harder and longer.
🔥 325mg of Caffeine for an explosive energy surge
💪 L-Citrulline & Agmatine Sulfate for skin-splitting pumps
⚡ Beta-Alanine to boost endurance and delay fatigue
🧠 DMAE Bitartrate for laser-sharp focus
🔬 OXYgold & AMPiberry for superior ingredient absorption
✔ 35-serving tub
PERFECT SPORTS Creatine 400g Unflavored – 80 Servings
Brand: Perfect Sports
Flavor: Unflavored
Servings per Container: 80
Item Weight: 400 Grams
Creatine Source: 100% Pure Micronized Creatine Monohydrate
Key Features:
-
5 g of pure micronized creatine per serving
-
Supports muscle size, strength, power, and recovery
-
Micronized for better solubility and absorption
-
Zero fillers, sugar, flavors, or additives
-
Banned-substance tested for quality and safety
Suggested Use:
Mix 1 scoop (≈ 5 g) with water, juice, or your favorite sports drink once daily. Best results achieved with consistent use alongside resistance training.

