Lief Labs
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 holds NSF International GMP certification (cGMP-registered since 2010), confirmed 2026-06-30 on NSF's public NSF/ANSI 455-2 directory under its legal manufacturing entity Lief Organics, LLC. 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.
Directory Listing · Certifications Confirmed
One or more certifications independently confirmed via public registries.
What this means →Valencia, California
- MOQ
- 2,500 units
- LEAD TIME
- 8-10 weeks (capsules and powders; varies by ingredient sourcing)
§1Editorial assessment
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 holds NSF International GMP certification (cGMP-registered since 2010), confirmed 2026-06-30 on NSF's public NSF/ANSI 455-2 directory under its legal manufacturing entity Lief Organics, LLC. 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.
§2Our review
The six checks in our review, applied before any name appears in the directory. Each check is auto-derived from public evidence on this profile.
§3Certifications
1 of 7 certifications independently confirmed. What this means
§4Capability matrix
- PRODUCT TYPES
- Capsules · Tablets · Powders · Gummies
- CAPABILITIES
- Custom Formulation · Private Label · In-House Testing · Packaging · Non-GMO Verification Assistance
- DOSAGE FORMS
- capsules · gummies · powders · tablets
§5Sources
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.
For the check-by-check breakdown that produces this vendor's score, see our scoring framework. The connection map between Lief Labs and other vendors, capabilities, and certifications is in the manufacturer atlas.
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