Warrior Lean Mass Gainer helps you bulk up and fuel intense training with a strong mix of fast and slow proteins, choosing Warrior for quality you can trust. Star ingredients are whey concentrate and micellar casein for steady amino acid supply. Warrior Lean Mass Gainer is manufactured in GMP-certified facilities, upholding safety and consistency [you can rely on every batch].

Available Sizes & Variants:

5040g lean mass gainer - calorie dense option for steady bulk.

Benefits & Features:

• Fast post workout recovery starts here.
• High protein blend includes whey concentrate and micellar casein for steady amino acid supply.
• Carbohydrate mix with oats, waxy maize and maltodextrin replenishes glycogen after sessions.
• Peptide bonded glutamine helps reduce muscle breakdown and supports immune function, contributing to faster post workout recovery so you can train consistently week after week.
• Manufactured in GMP certified facilities with no artificial colours or preservatives for purity.

Warrior Lean Mass Gainer is manufactured in GMP-certified facilities to ensure safety, purity and batch-to-batch consistency, a hallmark of the Warrior line. The blend pairs rapidly absorbed whey protein concentrate with slow-release micellar casein and milk protein, delivering amino acids when you need them most. The carbohydrate matrix uses oats, waxy maize and maltodextrin to replenish energy stores post training. Suitable for vegetarians and free from artificial colours and preservatives, this formula reflects Warrior's commitment to quality and results. For those seeking a reliable mass gainer or protein powder, many users also enjoy protein shakes as a convenient option.

Lean Carb Blend (Fine Milled Scottish Oats, Waxy Maize Starch, Maltodextrin), Premium Protein Blend (Whey Protein Concentrate, Micellar Casein, Milk Protein), Peptide Bonded Glutamine, Cocoa Powder, Flavouring, Sweetener (Sucralose).

• GTIN: 5060424707614
• Manufacturer: Warrior
• Size: White Chocolate
• Categories: Bodybuilding SupplementsNew ArrivalsNew In Supplements & VitaminsSports SupplementsWarrior
• 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.

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

The Active Ingredient Is: Whey Protein Concentrate

Whey Protein Concentrate is a high-quality dairy protein that provides essential amino acids necessary for body functions and muscle maintenance.

This form delivers rapidly absorbed protein from dairy sources, contributing to the amino acid pool used for tissue repair and growth, alongside other protein types in the blend.

What Does Whey Protein Concentrate Do?

Whey protein concentrate helps maintain normal muscle function by supplying essential amino acids after exercise, supporting ongoing protein turnover. This aligns with EFSA guidance on protein’s role in muscle mass maintenance and recovery after activity.

Dr. Jäger of the University of Southern Queensland found that post-workout protein supports muscle protein synthesis, particularly when consumed as part of a balanced recovery strategy.

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

Protein:61g ,Carbohydrates:168g ,Fat:11g

Warrior brings evidence-based formulation expertise to Welzo, recognised for delivering credible, high-quality mass-building nutrition. This brand is built on a solid manufacturing foundation with GMP-certified facilities and rigorous batch testing, underscoring a consistent commitment to safety and purity that matters to our customers. Warrior’s clear emphasis on quality and stability aligns with Welzo’s standards and the needs of athletes seeking reliable calorie and protein delivery.

In the UK market, Warrior’s manufacturing practices and vegetarian suitability position the brand well for performance-focused consumers who value transparency and regulatory compliance. Our evaluation highlighted the brand’s adherence to established production codes, reinforcing trust with every shake. This alignment with our quality framework is reinforced by our team of medical experts who review how products meet Welzo’s standards, and by our supplement quality standards for testing and certifications.

Welzo selected Warrior for its demonstrated commitment to safety, manufacturing excellence, and product integrity, which translates into dependable nutrition support for lean mass gain. This collaboration ensures customers receive a well-supported, science-backed option for post-workout recovery and calorie-dense needs, backed by our expert vetting process. our team of medical experts and our supplement quality standards guide every partnership.