Lean Mass Gainer
Higher-protein, moderate-calorie gainer for clean muscle gain.
A lean mass gainer delivers a higher protein-to-carbohydrate ratio and fewer calories per serving than a conventional mass gainer, supporting muscle gain with less fat accumulation for consumers who want size without bulk.
We formulate lean gainers with whey and milk proteins, complex carbohydrates, creatine and digestive enzymes in custom calorie profiles and flavours.
1 scoop (50–75 g) post-workout or between meals
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 Lean 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.