Mass Gainer
High-calorie protein & carb blends for size.
Mass gainers deliver a high-calorie blend of protein and complex carbohydrates to help hard-gainers meet energy and protein targets for muscle and weight gain.
We formulate custom calorie/protein ratios with added creatine, vitamins and digestive enzymes, in multiple flavours.
1–2 scoops (75–150 g) per serving
5,000 units
3–5 weeks after sample approval
24 months
Key Benefits
Our Manufacturing Capabilities
Formats we produce
Packaging
Fully private-label - bottle, jar, tube, sachet or blister with your branding
All products are WHO-GMP certified and fully private-label - your brand, your packaging. Custom strengths, flavours and formats are available on request.
Why manufacture Mass Gainer with Leben
One WHO-GMP partner for formulation, production and private-label packaging.
WHO-GMP Certified
Produced in audited, certified facilities with batch-level QC.
Custom Formulation
In-house R&D tailors strength, flavour and format to your brief.
Full Private Label
Your brand and packaging - we stay invisible.
Low MOQ & Export-Ready
Pilot batches to scale, shipped across 4+ countries.
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One WHO-GMP partner for your entire nutraceutical product line.