in this episode of the Ben Greenfield Fitness Podcast.

The time of flight mass spectrometer.

It's kind of a whiz-bang machine,

and we happen to get ahold of one of them.

It tests for a variety of substances

down to very, very minute amounts.

Parts per million or parts per billion,

sometimes parts per trillion,

really depends on the substance.

They're digestive enzymes, they will eat proteins,

so you don't want to have them come in contact with skin

or your mucus membranes.

And magnesium stearate is magic.

It's a 18 carbon saturated fat

that's reacted with magnesium,

so it's this powder that you can use a very tiny amount of,

and it will change the physical characteristics

of the rest of the powder that you mix it in with.

Any area where we are handling any of the materials

or finished product has to have filtered air going into it,

and that air needs to come out of that room

and be filtered again.

...