Third Party Testing

Our motto is, “Always be testing.” The raw materials are tested for purity. Trials, swab tests and validations are conducted throughout the manufacturing process. At the end of production, we send all our batches to a third-party lab for analysis.

If you are interested in seeing the Certificate of Analysis with detailed test results for any of our supplements, we’d be thrilled to show it off. Just head over to our Batch Checker page.

Here are the details on what we test for:

Microbiologicals

Nested Naturals requires microbiological testing and Certificates of Analysis from all of our suppliers for every batch of our supplements. Testing is conducted throughout production and all of our supplements are also evaluated by third party labs.

All results must meet the standards set by the FDA and the US Pharmacopoeia. We test for the following microbiologicals:

Microbiological // maximum detection limit
Yeast // 10 CFUs
Mold // 10 CFUs
Coliforms // 10 CFUs
Staphylococcus aureus // must be absent
E. coli // must be absent
Salmonella // must be absent

Our labs use USP methods 2021 and 2022. We also use AOAC 991.14. If you’re not a chemist, this might sound like gobbledy gook. What’s important to know is that these are stringent, industry-standard tests. Bugs are bad. We don’t mess around.

Heavy Metals

Nested Naturals requires heavy metal testing and Certificates of Analysis from all of our suppliers for every batch of our supplements. Testing is conducted throughout production and all of our supplements are also evaluated by third party labs.

All results must meet the standards set by the FDA and the US Pharmacopeia. We test for the following heavy metals:

Arsenic content shall not exceed 10 mcg
Cadmium content shall not exceed 5 mcg
Lead content shall not exceed 5 mcg
Mercury content shall not exceed 2 mcg

Trace amounts of metals are present in almost everything, including much of our food supply. It’s impossible to produce supplements that are entirely devoid of metal content, but our products must measure in with ridiculously low metal counts, deemed safe for consumption by the FDA.

We use Inductive Coupled Plasma Mass Spectrometry (ICP-MS) to test for heavy metals. This method is well suited for detecting metals at unbelievably low concentrations (between 0.0005 – 100 parts per billion).

ICP-MS is an analytical technique used for elemental determinations. Woah, what? Short version: it is a super accurate way to figure out what the heck is in a sample!

Geeky details: The first step in ICP-MS is to ionize the atoms in the sample with a positive or negative charge. The second step is to introduce a magnetic field using Inductively Coupled Plasma; this attracts the newly charged atoms just like the big red and grey magnet attracted the metal filings in your fourth grade science class. A piece of fancy equipment called a Mass Spectrometer (not to be confused with the Flux Capacitor in Back to the Future) is brought in to separate and measure the ions, which tells us what metals are in the sample.

Lord, and you thought you’d never need Chemistry 101 again!

If science isn’t your thing, all you need to know is that we go above and beyond with crazy accurate testing for heavy metals.

Identification

High Performance Liquid Chromatography (HPLC) is used to separate, identify, and quantify each component in a mixture.

HPLC is a lab technique that uses chemistry to reveal precisely what elements are in a sample. It’s based on a process that was first developed in 1900 to separate plant pigments such as chlorophyll, carotenes and xanthophylls. The important words to note in the acronym HPLC are “High Performance.” This is a super accurate test.

Our smarty pants scientists take samples throughout the manufacturing process, starting when the raw ingredients arrive and ending when the product is finished. Running the samples through HPLC ensures that all the promised ingredients are inside in the proper amounts. A third-party lab uses this same process to test each of our batches.

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