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Meet the BSN TRUE-MASS Weight Gainer by BSN — a product built with performance in mind.
If gaining weight has always been a challenge, this mass gainer could be your ally.
BSN's mass gainer provides 47g protein and 690 calories per serving for serious weight gain.
Carries the Informed Choice certification — independently tested to ensure what's on the label is what's in the tub.
Well-suited for muscle-building goals when paired with consistent training.
Suitable for vegetarians, so you can supplement confidently on a plant-inclusive diet.
A premium-tier product for those willing to invest in top-shelf formulations.
Typically ranges from $71–$83 — a competitive price point for the US market.
Overall, a worthy contender in the mass gainer space from BSN.
The brand behind this product — their story and what they stand for.
Pioneer in performance nutrition since 2001. Known for SYNTHA-6, a great-tasting multi-protein blend popular among athletes and casual gym-goers alike.
Understand which fitness goals this product is best suited for.
Muscle Gain
Supports muscle growth and recovery when combined with resistance training and a protein-rich diet.
Track how the price has changed over the last 90 days on Amazon.com.
Step-by-step usage instructions so you get the most out of every serving.
Mix 1–2 scoops with 300–400ml of milk for a calorie-dense shake.
Consume between meals or post-workout to hit your caloric surplus.
Start with 1 scoop to assess tolerance before moving to the full serving.
Track your total daily calories. A mass gainer works best when it fills a genuine calorie gap — not as a meal replacement.
See how this product compares to similar options in its category.
| This Product | Optimum Nutrition | Animal | EPN Supplements | |
|---|---|---|---|---|
| Price | $73.19 | $94.40 | $43.94 | $39.99 |
| Per Serving | - | - | - | - |
| Servings | — | — | — | — |
| Lab Tested | ✓ | ✓ | ✓ | ✗ |
| Rating | 4.5 ★ | 4.6 ★ | 4.5 ★ | 4.6 ★ |
Common questions about this product — answered clearly and honestly.
Yes, this product is vegetarian-friendly. It does not contain any non-vegetarian ingredients.
Yes, this product has been lab tested by Informed Choice. Third-party lab testing verifies that the product contains what the label claims, giving you confidence in its quality and purity.
Optimum Nutrition
Optimum Nutrition Gold Standard Pro Gainer, Weight Gainer Protein Powder, Double Chocolate, 10.19 Pounds (Packaging May Vary)
Animal
Animal M-Stak - Muscle Builder and Anabolic Mass Gainer Supplement for Bodybuilding - Lean Muscle Growth, Amino Complex and Pre Workout Energy, 21 Packs
EPN Supplements
Booty Gainer Pro Series - Weight/Muscle Gainer for Women to Grow Thicker Booty & Larger Buttox | Helps Naturally Curve & Shape Body | Grow Rounder, Wider & Thicker Glutes - 60 Capsules
Thalacy
1200MG Beta Ecdysterone Supplement, 98% Maximum Purity Ecdysterone Supplements for Lean Muscle Mass, Athletic Performance & Strength, 120 Capsules
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