How does USP provide verifi cation?
USP works with manufacturers who voluntarily participate in the
USP Ingredient Verifi cation Program. We verify active pharma-
ceutical ingredients, excipients, and dietary ingredients through a
comprehensive, continuous quality testing and evaluation process.
Our staff scientists:
Perform thorough audits of manufacturing facilities, practices,
records, and quality control measures to determine whether the
manufacturer follows good manufacturing practices.
Test ingredient samples in USP laboratories and other qualifi ed
laboratories.
Allow use of the USP Verifi ed Mark only on ingredients that meet
all of USP's stringent criteria.
Conduct testing on ingredients carrying the USP Verifi ed Mark,
sampled from the marketplace, to determine whether they con-
tinue to meet USP's standards.
USP awards the USP Verifi ed Mark only after the facility audits,
product documentation reviews, and product testing have been
completed and the manufacturer has corrected all fi ndings. After-
ward, USP conducts testing on USP Verifi ed ingredients randomly
sampled from the marketplace to ensure they continue to meet
USP's strict standards for verifi cation.
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When you see the USP Verifi ed Mark
on an ingredient label, manufacturers
can trust the quality of the ingredients.
This means that the ingredient:
Demonstrate compliance with appli-
cable Good Manufacturing Practice
(GMP) requirements
Verify conformance to appropriate
specifi cations for identity, strength,
purity, and quality
Meets acceptable limits for impurities
and contaminants
Ensure ingredients consistency from
batch to batch
