MaxMass is a mass gainer that helps you pile on lean muscle fast by delivering a hearty calorie blend with a proven protein and creatine mix. A blend that includes whey protein and creatine monohydrate supports muscle growth and tougher workouts. Olimp Nutrition brings years of expertise in mass gain formulas, with careful manufacturing and quality checks that set this apart.

Available Sizes & Variants:

6000 grams mass gainer - designed for rapid mass gain during intensive training.

Benefits & Features:

• Helps muscle growth when paired with training.
• Fast-acting carbohydrate mix replenishes glycogen after sessions, helping reduce muscle breakdown and speed up recovery, so you can train tougher on back-to-back days and feel ready sooner.
• Creatine monohydrate boosts phosphocreatine stores for more explosive, short bursts.
• Whey protein blend provides essential amino acids to fuel muscle protein synthesis, making this a solid protein powder pick for mass gainer goals.
• Taurine helps with cell hydration and could boost endurance and recovery after tough sessions.

Building on Olimp Nutrition's mass gain heritage, MaxMass uses a whey protein mix from isolate, concentrate and hydrolysate for solid amino delivery. It pairs a carbohydrate matrix with creatine monohydrate to support glycogen resynthesis and energy. Taurine helps with cell hydration and endurance, while the whole formula is built to support recovery after tough sessions. This makes MaxMass a strong pick as the best protein powder option for mass gainer goals.

Energy, Fat, of which saturates, Carbohydrate, of which sugars, Fibre, Protein, Salt, Creatine Monohydrate, Taurine

• GTIN: 5901330045240
• Manufacturer: Olimp Nutrition
• Size: Vanilla
• Categories: CHECKOUT UPSELLOlimp Sport NutritionSports SupplementsWeight Gainers & Muscle Mass Gainers
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take 1-2 portions (2 scoops = 100g) a day, between meals and approximately 1 hour before and after training. Add 1 portion (100g) to 150 ml of water. Store in a cool, dry place, away from direct sunlight. Keep out of reach of children. Do not exceed the recommended daily dose. This product is a food supplement and should not be used as a substitute for a varied diet.

Please consult the product packaging for accurate instructions on how to use the product.

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: Whey Protein Blend (Concentrate, Isolate, Hydrolysate)

Whey protein is a dairy-based protein that offers key amino acids essential for muscle growth and upkeep.

This blend brings together concentrate, isolate and hydrolysate to deliver a full amino acid profile and high bioavailability for supporting normal protein synthesis and recovery processes.

What Does Whey Protein Do?

Whey protein is involved in muscle protein synthesis, helping maintain lean tissue as part of an energy-balanced diet. Studies indicate whey supports amino acid delivery to muscles, contributing to normal muscle function.

Dr. Tang from the University of Texas found that whey protein stimulates muscle protein synthesis, supporting muscle function as described in EFSA-aligned evidence.

*This product is not intended to diagnose, treat, cure, or prevent any disease.

Olimp Nutrition is a trusted name in sports nutrition, relied on for delivering complete formulations that back demanding training programmes. This brand’s long-standing presence in the category and its specialised focus on mass gainers give us confidence in its ability to consistently back athletes seeking rapid energy and muscle support.

Our team meticulously assessed Olimp Nutrition using Welzo’s standard vetting process, guided by our expert team of doctors, nurses, and nutritionists and reinforced by our thorough quality checks. You can learn more about how we verify ingredient quality in our quality standards resources, which underpin every brand we partner with.

This brand is especially well matched for MaxMass 3XL, a high-calorie mass gainer designed for vigorous training and recovery, thanks to its protein blend and creatine monohydrate as core components. Olimp Nutrition’s approach aligns with our criteria for durability, reliability and ingredient integrity, ensuring the product fits the needs of athletes aiming to support fast-paced training cycles.

Welzo selected Olimp Nutrition for this product because of its focused formulation, proven manufacturing standards and our confidence in its ability to meet the demands of intensive gym programmes. For a closer look at our team and the standards we apply to every product, explore our expert team of doctors, nurses, and nutritionists and how we verify ingredient quality.