Achieving the perfect balance in how the final product affects our senses lasts, flows through a process and costs, is the formulators challenge. TRÈS BN® powders are not only soft, but work in synergy with many other materials to achieve this balance. Whether it's the shimmer of an eye shadow, the coverage in a foundation, or higher yield in your extrusion process, TRÈS BN® powders offer formulators many solutions wrapped into one material.
What is TRÈS BN?
Hexagonal boron nitride (hBN) is a synthesis of Borax (natural mineral) and a Nitrogen source at high temperature resulting in a lamellar structure that resembles graphite, except pure HBN is white. TRÈS BN cosmetic powders are Ultra-High Purity (UHP) versions of this lamellar form with each layer or cleavage face containing boron and nitrogen. There is no B-N bonding between layers and, therefore, planes slide over one another, creating a soft and lubricating effect.
A Beautiful Alternative
Each TRÈS BN® grade has unique properties that are associated with crystal size, morphology and surface characteristics. From sub-micron crystals to 50 micron platelets, each grade within this range has a different appearance from matte to shiny, but all are soft, smooth and adherent. Furthermore, TRÈS BN® is a dielectric ceramic powder that remains on the skin's surface, offering a transparent and photo-stable layer of protection for skin care actives.
Hexagonal BN Crystal Structure | 
Typical SEM of TRÈS BN |
Product Grades
1PUHP1106 contains 97% BN + 3% dimethicone; PUHP1107 contains 97% BN + 3% methicone
* Spherical morphology
Typical Chemical Analysis
| BN | > 99% |
| B2O3 | < 0.1% |
| O2 | < 0.5% |
| Metals (Hg, As, Pb) | < 1 ppm |