Certifications Decoded (NPA | UL | GMP | OTCO)

Certifications translate behind‑the‑scenes controls into something you can see. Mt. Angel Vitamins manufactures in our own Oregon facility and follows a testing‑centric model—test, verify, then test again—supported by third‑party credentials.

The badges you’ll see on our site

NPA
Natural Products Association — GMP audit of supplement manufacturing practices.
UL
UL Solutions — independent audit/registration of GMP quality systems.
GMP
Good Manufacturing Practices — FDA 21 CFR 111 framework for supplements.
OTCO
Oregon Tilth Certified Organic — organic handling & processing where applicable.

We’re manufactured in Oregon, USA, with globally sourced ingredients; certifications add independent oversight to our in‑house controls.

NPA, UL, GMP, and OTCO — Decoded

NPA GMP Certification (Supplements)

What it audits: People, procedures, batch records, sanitation, labeling, complaint handling, and documentation—aligned to FDA’s 21 CFR 111 for dietary supplements.

Why it matters to you: It shows our processes are independently reviewed for consistency and traceability from raw materials to finished goods.

  • Supports “true‑to‑label” outcomes across batches.
  • Confirms documentation and training are in place.

UL Solutions (GMP Audit/Registration)

What it audits: Independent verification of quality systems and GMP controls, including supplier qualification, incoming checks, in‑process controls, and final release.

Why it matters to you: Adds another layer of third‑party oversight on top of our in‑house testing workflow.

  • Focus on lot traceability and batch records.
  • Validates that procedures are followed—not just written.

GMP (Good Manufacturing Practices)

What it is: The FDA’s rules for dietary supplement manufacturing (21 CFR 111). Third‑party bodies (like NPA and UL) audit to these requirements.

Why it matters to you: GMP is the backbone that keeps products consistent, safe, and documented from raw receipt to finished bottle.

  • Defines standards for identity, purity, strength, and composition.
  • Requires training, records, and corrective actions.

OTCO — Oregon Tilth Certified Organic

What it audits: Organic handling and processing practices where applicable—segregation, approved inputs, recordkeeping, and traceability.

Why it matters to you: Confirms that organic‑labeled workflows meet a recognized organic standard.

  • Focus on organic integrity and documentation.
  • Applies to relevant products and processes.

Where to See Proof

FAQs

Are all products “certified organic”?

No. OTCO certification applies to organic handling/processing where relevant. Many formulas use non‑organic nutrients, but all are manufactured under audited GMP controls.

Who certifies your GMP compliance?

Our facility’s GMP program is independently audited (e.g., NPA, UL). These audits align with FDA 21 CFR 111 requirements for dietary supplements.

Where are your vitamins made?

In our own certified facility in Mt. Angel, Oregon, USA—made in the USA with globally sourced ingredients.

FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.