Lief Labs
Valencia, California
Profile updated: March 12, 2026
Lief Labs operates over 220,000 sq ft of manufacturing space across two FDA-registered facilities in Valencia, California. The company claims USDA Organic certification and operates an ISO/IEC 17025 accredited microbiology lab. This in-house testing capability is unusual for contract manufacturers and allows faster quality control turnaround. They produce over 5 million capsules and 1 million tablets per day. Lief Labs reports holding NSF International cGMP certification since 2010, though this could not be confirmed through NSF's public GMP directory as of March 2026. Their product line includes organic-approved tablets, a category few competitors offer. The company also provides Non-GMO Project verification assistance for brands seeking that certification. They target emerging and entrepreneurial brands with minimum orders starting at 2,500 units.
Min. Order
2,500 units
Lead Time
8-10 weeks (capsules and powders; varies by ingredient sourcing)
Product Types
Capsules, Tablets, Powders, Gummies
Capabilities
Custom Formulation, Private Label, In-House Testing, Packaging, Non-GMO Verification Assistance
Dosage Forms
Certifications
0 of 7 certifications independently confirmed. What this means
Key Regulatory Concepts
Dietary supplement manufacturers must comply with 21 CFR Part 111 (Current Good Manufacturing Practice for dietary supplements). This includes requirements for personnel, facilities, equipment, production, laboratory operations, and record-keeping.
Review Notes
All certifications are self-reported. the company's in-house ISO 17025 testing capability and USDA Organic production lines are differentiators if confirmed.
Sources
- Lief Labs - Official Website(2026-03-12)
- Lief Labs - Quality & Certifications(2026-03-12)
- White-Label Service Expansion (Nutritional Outlook)(2026-03-12)
Disclosures
- No material connection exists between Inventory Ready and this manufacturer
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