Is your mineral makeup really mineral makeup at all? I found an interesting test for determining whether your mineral makeup is “true” mineral makeup — though the definition of that term is somewhat nebulous. Still, I figured I’d give it a shot with all my different mineral makeup, and got some revealing results for you guys! Check the below list for your mineral makeup and see how it performed.
Here are the steps of the mineral makeup test we used, provided by Color By Camille founder Camille Meyer:
- Scrape 1/4 tablespoon of mineral makeup powder into 1/2 cup of water.
- Mix the powder into the water for 5-10 seconds.
- The makeup powder mix should float on top of the water. If the powder mixes with water and transforms into a milky substance or sinks to the bottom, it’s not true mineral makeup.
- Insert your finger into the water. If the powder mix on your finger goes from gooey to powdery when you rub your fingers together, you’ve found a true mineral makeup.
And here are the results!

Pur Minerals Mineral Makeup Test Results
Pur Minerals foundation is one of the best mineral foundations I’ve ever used, so I was surprised to see some of the powder float to the bottom — but then I realized because it’s a pressed powder, it might not work the way this test expects loose powder to work. Hmm. Still, most of the water stayed pretty clear despite my efforts at grinding the powder up and stirring it in. And when I wet my fingers in the water, the makeup did return to somewhat of a powdery texture — which as you read on you’ll realized was a rarity indeed.

MAC Mineralize Skinfinish Mineral Makeup Test Results
This was a surprising one. The water got awfully cloudy with MAC Mineralize, which the test suggests is not good. However, it wasn’t milky, and this powder is very fine and comes in a pressed format, so maybe it’s not the optimal makeup for this test. I made sure to grind it up extra well though. When I rubbed it between my fingers, the makeup felt more like clay than powder; but again, this may be due to the extra-fine powder.

RAW Minerals Mineral Makeup Test Results
Does it say something about RAW Minerals that I chose to use an eyeshadow rather than my RAW Minerals foundation to do this test because I didn’t want to lose a quarter tablespoon of it? At any rate, RAW Minerals performed very well on the first part of the test, with almost no powder floating to the bottom. However, this also felt like clay when I rubbed it between my fingers — but like MAC Mineralize, this powder is very fine. Could this be normal for certain textures of mineral makeup?

Bella Terra Mineral Makeup Test Results
Yes, this is that brand they sell at the little kiosks in your mall. I was mesmerized by their massive stack of eyeshadows (which I do NOT regret buying, by the way) so the foundation was a natural extension of my shopaholism. However…this foundation did not perform well, as you can see. The water is straight up milky and it felt like paint on my fingers. I don’t know what this test’s results really mean, but that can’t be good.

Mineral Essence Mineral Makeup Test Results
You may not be familiar with Mineral Essence, and their foundation’s results in this test probably won’t encourage you to become familiar with them. As you can see from the above photos, they failed this particular test horribly. (But again, what value this test has I’m not sure.) The water became entirely opaque and milky and the stuff acted like paint on my fingers. Ewie.
So sorry for not having included Bare Minerals, by the way — I just ran out! Honestly though, I don’t know how accurately this test works for all mineral makeup — there are so many different types these days, and really, is synthetic all bad?

This is interesting. I’ll be trying this tomorrow with my mineral makeup
I have to laugh at the test. There are many, many minerals which dissolve in water– halite, gypsum & anhydrite, for example. Clays are all minerals as well, and they would turn water milky-cloudy and not feel powdery on your fingers. This strikes me as similar to the “rub gold on your face to see if you have anemia” test.
If you don’t have a bad reaction and the makeup works for you, it shouldn’t matter how “true” it is.
LovleAnjel (I know who you REALLY are ;P):
Yeah, I just got a copy of the test from a different mineral makeup company, so I can’t vouch for its validity (and it’s not improbable that it might have been slightly biased toward that company’s products…) As I mentioned in the post, I really don’t know what their definition of true mineral makeup is. You’d be much better at defining the cosmetics’ chemistry than I would!
This is a great article. Do you mind if I post a link from my blog to your article?
What a fun little science experiment. Hmm, now to research out this Raw Minerals makeup line…
Hi Cailin,
Cute site and great advice about the “home test” on mineral makeup!
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Joi