The whiteness of the crystals permits low micron sized powders to act as pigments. Their high surface area provides bonding sites for liquid carriers, providing excellent coverage and hiding power.
Flat platelets allow for excellent compaction eliminating the need for compacting additives such as stearates.
Scientific testing shows TRÈS BN powder offers lower coefficients of friction than traditional cosmetic powders such as talc, resulting in a more lubricious feel and silky texture.
TRÈS BN® high purity cosmetics powders are available in D50 particle sizes of 2 to 30 microns. Unique properties of each grade are related to its crystal size. Whether it is shiny appearance or matte, bold effects or subtle, available range of TresBN powders offers a solution for all skin care and color cosmetic needs.
Crystal structure | Hexagonal |
BN | 99+% |
Heavy metals | <1 ppm |
pH | 6 - 8 |
Appearance | White, photo-stable and odorless powder |
Texture | Soft, slippery, smooth |
Particle size | Grades from <1µm to 30µm |
Refractive index | 1.74 |
Coefficient of friction | <0.3 |
Dielectric constant | 3 - 4 |
Theoretical density | 2.26 g/cm3 |
Molecular weight | 24.86 |
Toxicology
TRÈS BN Cosmetic Powders have had product safety evaluations conducted by an independent laboratory and were determined to be completely safe for cosmetic use in all parts of the world. Boron Nitride powders are inert and non-toxic.
BN | >99% |
B2O3 | <0.1% |
O2 | <0.5% |
Metals (Hg, As, Pb) | <1ppm |