Definition: A substance is micronized if it is ground or pulverized into particles that are just a few "microns" in diameter. Translation: really small particles! You'll see this most often referred to with oatmeal that is super finely ground before it's put into a shampoo or soap. But you could also micronize chamomile, flower petals or any other dry additive.
Also Known As: You may also see super finely ground oatmeal referred to as "colloidal" - which basically means super fine and evenly dispersed in a solution.
Examples: My soap has micronized oatmeal in it.
I added colloidal oatmeal to my lotion.
I added colloidal oatmeal to my lotion.

