Simpson Labs LLC
Simpson Labs operates in Valencia, California, holding an NSF/ANSI 455-2 listing for dietary-supplement manufacturing; the company also self-reports NPA GMP certification. It makes capsules and powders and runs an end-to-end service from product concept through manufacturing and fulfillment.
Not disclosed
Directory Listing · Certifications Confirmed
One or more certifications independently confirmed via public registries.
What this means →- MOQ
- Not publicly disclosed
- LEAD TIME
- Not publicly disclosed
§1Editorial assessment
Simpson Labs operates in Valencia, California, holding an NSF/ANSI 455-2 listing for dietary-supplement manufacturing; the company also self-reports NPA GMP certification. It makes capsules and powders and runs an end-to-end service from product concept through manufacturing and fulfillment.
§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
2 of 6 certifications independently confirmed. What this means
§4Capability matrix
- PRODUCT TYPES
- Capsules · Powders
- CAPABILITIES
- Contract Manufacturing · Custom Formulation · Packaging · Quality Operations · Order Fulfillment
- DOSAGE FORMS
- capsules · powders
§5Sources
- Codex discovery output(2026-05-26)
- Crow verification research(2026-05-26)
- Vendor primary site(2026-05-26)
- Cert directory cross-check(2026-05-26)
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 Simpson Labs LLC and other vendors, capabilities, and certifications is in the manufacturer atlas.
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