ON Serious Mass 6LB
Save 20% When You Add to Cart
⭐ Earn Fuel Rewards points on this order ($1 = 1 point on your in-cart price)
ON Serious Mass 6LB - Vanilla
Couldn't load pickup availability
Product Description
Product Description
ON Serious Mass 6LB by Optimum Nutrition is a high-calorie mass gainer formulated with whey protein concentrate and maltodextrin, designed for athletes and hard gainers who need a straightforward way to increase daily calorie and protein intake. The 6LB format is a practical mid-size option whether you are new to mass gainers or want a manageable supply to complement a structured bulking phase. Pick it up directly through fuelsupplements.com for fast Canadian shipping and guaranteed authenticity.
Key Benefits
- High-calorie formula built around whey protein concentrate and maltodextrin to support serious size and recovery goals
- Convenient 6LB format — a solid starting point or a practical size for athletes managing storage and budget
- Mixes easily into a shake to add significant calories between meals or after training
- Sweetened with acesulfame potassium and sucralose for a palatable flavour without excess sugar from refined sources
- A trusted formula from Optimum Nutrition, one of the most recognised mass-gainer brands available in Canada
- Available exclusively through fuelsupplements.com with competitive Canadian pricing
How to Use
Blend or shake one serving of ON Serious Mass 6LB with water, milk, or your preferred liquid. Use between meals or after training on days when you need extra calories and protein to support your goals. Always follow the label directions for the specific serving size and daily usage guidance.
Directions and Suggested Use
Directions and Suggested Use
Ingredients
Ingredients
Questions & Answers
Questions & Answers
What are the main ingredients in ON Serious Mass 6LB?
ON Serious Mass 6LB is built on maltodextrin (a carbohydrate source) and whey protein concentrate, with lecithin, natural and artificial flavour, and acesulfame potassium and sucralose as sweeteners.
How is ON Serious Mass different from a regular whey protein powder?
It's a mass gainer, not a standard protein powder, so each scoop is built around maltodextrin plus whey protein concentrate to add significant carbohydrate and protein rather than protein alone.
Does ON Serious Mass 6LB contain allergens?
Yes, it contains milk and soy, so it isn't suitable if you need to avoid either of those.
How do you mix ON Serious Mass 6LB?
Blend or shake the powder with cold water, milk, or another beverage for 30-45 seconds until dissolved; for a smoother taste and texture, use 400-500 mL of cold water per the label tip.
Have a question?
Ask a question
ON Serious Mass 6LB
ON Serious Mass 6LB
Payment Methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Why these go together
Gainers supply the calories — creatine converts the surplus into strength, and a big shaker makes the servings manageable.
