What is United States Pharmacopeia & What Does USP Verified Mean?

what is usp verified

The United States Pharmacopeia (USP) is a scientific, nonprofit organization that sets federally recognized public standards of quality for medicines, dietary supplements, and foods. USP has been establishing standards since 1820, and today, USP standards are used by manufacturers and regulators in more than 140 countries. While others may provide testing and quality seals, USP is the only standards-setting organization recognized in U.S. federal law that offers third-party verification.

What is USP Verified?

What does usp verified mean

Only those products that meet USP’s stringent criteria are permitted to display the USP Verified Mark on their label. The USP Verified Mark on Nature Made products tells you that they have been independently verified for quality and:

  • Contain the ingredients listed on the label, in the declared potency and amounts;
  • Do not contain harmful levels of specified contaminants;
  • Will break down and release into the body within a specified amount of time; and
  • Have been made according to FDA current Good Manufacturing Practices using sanitary and well-controlled procedures.

To learn more about why the USP Verified Mark is a recognized symbol of quality visit Quality-Supplements.org

Which Vitamins are USP Verified?

Nature Made was the first national vitamin brand to earn USP Verification on many of its products and is the national vitamin brand with the most products carrying the USP Dietary Supplement Verified Mark. Many Nature Made products currently hold the USP Verified Mark, and we are committed to increasing the number of products reviewed and verified by USP in the future. 

Learn more about Nature Made's quality standards

Nature Made Products That Have Earned the USP Verification Mark

Nature Made USP Verified Products
Segments Tablet Softgel Other
CholestOff Dropdown Arrow

CholestOff Original

CholestOff Complete

CholestOff Plus

CoQ10 Dropdown Arrow

CoQ10 100 mg

CoQ10 200 mg

CoQ10 400 mg

Fish Oil & Omega-3 Dropdown Arrow

Fish Oil 1000 mg

Fish Oil 1200 mg

Fish Oil 1200 mg + Vitamin D

Fish Oil Derived

Omega-3 1200 mg Softgels

Fish Oil Pearls

Krill Oil 500 mg

Fish Oil Gummies

Kids First Fish Oil Gummies

Flaxseed Oil Dropdown Arrow

Flaxseed Oil 1000 mg

Flaxseed Oil 1400 mg

Melatonin Dropdown Arrow

Melatonin 3 mg

Melatonin 5 mg

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Minerals + Test Dropdown Arrow

Calcium 500 mg with Vitamin D

Calcium 600 mg with Vitamin D

Calcium 750 mg with Vitamin D

Calcium, Magnesium & Zinc

Calcium Citrate + Magnesium

Iron 65 mg

Potassium Gluconate

Zinc 30 mg

Vitamin K2 100 mcg

Multivitamins Dropdown Arrow

Multi Complete

Women's Multivitamin

Women's Multivitamin 50+

Men's Multivitamin

Men's Multivitamin 50+

Prenatal Multivitamin

Multi Daily

Women's Multivitamin

Women's Multivitamin 50+

Men's Multivitamin

Multivitamin Complete

Prenatal Multivitamin + DHA

Postnatal Multivitamin + DHA

Men's Multivitamin + Omega-3 Gummies

Prenatal Gummies

Vitamin A Dropdown Arrow

Vitamin A 8,000 IU

Vitamin B Dropdown Arrow

Vitamin B1 100 mg

Vitamin B6 100 mg

Vitamin B12 500 mcg

Extra Strength Vitamin

B12 2500 mcg

B Complex with Vitamin C

Super B Complex

Folic Acid 400 mcg

Maximum Strength Vitamin B12

Vitamin B12 1000 mcg

Vitamin B12 3000 mcg

Biotin 1000 mcg

Extra Strength Biotin 2500 mcg

Max Strength Biotin 5000 mcg

Flush Free Niacin

Super B Energy Complex

Vitamin B12 1000 mcg Sublingual

Vitamin B12 3000 mcg Sublingual

Energy B12 Gummies

Hair, Skin & Nails Gummies

Biotin Gummies

Vitamin C Dropdown Arrow

Chewable Vitamin C 500 mg

Chewable Extra Strength Vitamin C 1000 mg

Vitamin C 500 mg Caplets

Vitamin C 1000 mg

Vitamin C 500 mg

Vitamin C Gummies

Vitamin C Extra Strength Gummies

Kids First Vitamin C Gummies

Vitamin D Dropdown Arrow

Vitamin D 1000 IU

Vitamin D 2000 IU

Vitamin D3 1000 IU Adult Chewable

Vitamin D 1000 IU

Vitamin D 2000 IU

Vitamin D 5000 IU

Vitamin D3 Adult Gummies

Vitamin E Dropdown Arrow

Vitamin E 400 IU d-Alpha

Vitamin E 400 IU dl-Alpha

Vitamin E 1000 IU

Vitamin K Dropdown Arrow

Vitamin K2 100 mcg


To learn more about vitamins and supplements, read our health articles.