What is boron nitride?

starry, it's an ingredient that's being more commonly used in MMU. It is very expensive.

Here's some info I copied from coastal scents. Boron Nitride comes in many different particle sizes and luster variances from matte to high shimmer. Our vendor has about 20 types!

This is why a manufacturer would use it:

(This info is from coastalscents.com and although it is for a shimmery boron grade, the basic info is still the same.)

"Features and Benefits

* Hexagon crystal structure provides parallel planes over which platelets slide, creating a smooth and silky feel
* Provides slip and payoff not obtainable with standard materials such as talc, mica and bismuth oxychloride
* Particles carry a static charge and increase the adherence and coverage properties of cosmetics with additions of the powder between 3% and 30%
* Lubricating nature of platelets aids in compaction, transfer and removal of the final cosmetic product, reducing the need for compacting additives such as stearates

"

Thanks Kristen. Personally, I feel less is more when it comes to mmu. My skin is so sensitive.

I couldn't agree more. I like to keep it simple!

Most formulas containing Boron Nitride (foundations, I mean) probably won't contain a very high percentage of it. This stuff is darn expensive!

K