Tested to Be Trusted

Tested to Be Trusted

You have standards. So do we.

We require third-party testing of all vitamins and supplements to confirm they meet our high standards. It's our commitment to you and your family.

To know if a product's been tested, check for a Supplement Facts panel. You'll know that what the label says is what you get.*

What's in your supplement

check mark indicating ingredients and amounts that are tested

The vitamin or supplement needs to contain all of the dietary ingredients and the amount per serving listed in the center of the Supplement Facts panel. (Marked with a check in the example shown here.)

X mark indicating other ingredients that are not tested

The Other Ingredients listed below the box are not confirmed. (Marked with an X in the example shown here.)

Example of a bottle with Supplement Facts label with a check mark indicating ingredients and amounts that are tested and an X mark indicating other ingredients that aren't tested

What's not in your supplement

Products must be free from specific, identified harmful contaminants, and other contaminants must not exceed set standards.

These include:


These heavy metals can't exceed the current industry standards:

  • Inorganic arsenic
  • Cadmium
  • Chromium (VI)
  • Lead
  • Mercury


Products that claim to contain botanical ingredients can't contain pesticides exceeding current regulatory standards. Compounds tested are based on those suggested by the United States Department of Agriculture (USDA) National Organics Program document USDA-NOP-2611-1.

Microbiological components

We test for the presence of certain microbiological pathogens including salmonella, E. coli and S. aureus.

Microbiological activity — aerobic plate count, yeast and mold — must be within current allowable limits.

Accepted microbiological limits are based on industry standards.

Industrial contaminants in fish oil

When ingredients and products contain natural fish oil, manufacturers must have controls in place to screen for polychlorinated biphenyls (PCBs), polychlorinated dibenzo-para-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and dioxin-like PCBs.

"Free from" claims

Any gluten-free, wheat-free or yeast-free claims made on a Supplement Fact Panel are verified following Food and Drug Administration (FDA) standards.

For gluten-free products, for example, that means less than 20 parts per million.

How it's made

Our suppliers are required to meet current Good Manufacturing Practice (GMP) requirements and/or Global Food Safety Initiative (GFSI) standards. Because how vitamins and supplements are made can impact what's inside.

Meet the third-party testing experts.

These industry leaders ensure the vitamins and supplements we sell meet our high standards. And they'll continue to test any new products we bring to our shelves.

United States Pharmacopeia

*Tests performed on a single lot of the vitamin or supplement. Third-party testing for subsequent lots is not required. As a result, we cannot confirm that all lots would pass these tests.