19,000 Tests Per Month

Testing, testing, testing. It’s our passion! At NOW, we have 150+ scientists that are trained on the most cutting-edge analytical instruments to test for everything from pesticides to potency. We want to make sure that what’s on the label is in the bottle and that you are getting the safest supplements you can feel good about!


Chemist Angelica uses high-performance thin-layer chromatography (HPTLC) and Time-of-flight mass spectrometry liquid chromatography (TOF/MS/LC) to correctly identify botanical species.

Microbiologist Dhruvit uses the Soleris Rapid Microbiological System to detect the presence of unwanted bacterial and fungal contaminants.

Scientist Mark uses inductively coupled plasma-mass spectrometry (ICP-MS) to measure heavy metals at trace levels, and LC-Orbitrap-MS to test for other contaminants.

Chemist Joey uses high-performance liquid chromatography (HPLC) to ensure ingredient potency.

Chemist Carlos uses liquid chromatography-mass spectrometry (LC-MS) to test for pesticides.

Our Story

As a family-owned company since 1968 – NOW produces high-quality natural products at prices that everyone loves. We are respected leaders in the natural products industry, with a mission to provide value in products and services that empower people to lead healthier lives.

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Find NOW Near You

You’ll find many of NOW’s products at local health food stores, and we encourage you to shop locally first.

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