optimumnutrition

Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate Peanut Butter,

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Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate Peanut Butter, 6 Pound (Packaging May Vary)Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate Peanut Butter, 6 Pound (Packaging May Vary)Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate Peanut Butter, 6 Pound (Packaging May Vary)Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate Peanut Butter, 6 Pound (Packaging May Vary)Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate Peanut Butter, 6 Pound (Packaging May Vary)
$35.19 $54.99 In stock

Category: POWDERS

Optimum Nutrition Serious Mass is a weight gainer protein powder designed to support your fitness goals. This Chocolate Peanut Butter flavor provides a rich taste to help you increase your calorie intake.

  • Weight gainer protein powder to help support mass building efforts
  • Contains creatine to aid in strength and performance
  • Includes Vitamin C and Zinc for immune support
  • Chocolate Peanut Butter flavor for a delicious shake experience
  • 6-pound container for convenient, long-lasting use
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 69 reviews)

Natalie D. ★★★★★

I’ve been struggling to hit my calorie goals, and this powder finally makes it easy—one shake with whole milk comes out thick and creamy, and the creatine and zinc are a nice bonus for recovery. Tastes more like a dessert than a supplement, which honestly keeps me coming back for a second scoop.

Nicholas ★★★★★

The chocolate peanut butter flavor is genuinely rich, not artificial-tasting, and it mixes thick enough to feel like a real meal. Two scoops with whole milk easily gets me past 1,200 calories, and the creatine and zinc are a nice bonus for recovery.

Zoe H. ★★★★★

I’ve been blending this with oat milk and a banana for extra calories, and the powder dissolves way better than I expected without clumps. The chocolate peanut butter flavor is actually enjoyable enough to drink every day.

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