Granpowder Silica-Au
Granpowder Silica-Au is spherical silica cladded with colloidal gold with an average particle size of about 3 - 10 microns. Granpowder Silica-Au is a very unique powder that allows for the preparation of oil-based liquid or solid applications that deliver colloid gold and a superior slippery feel. Colloidal gold has been reported to have anti-aging property for skin and enhance skin's natural defense ability against photo and chemical attacks. When mixed with oil, Granpowder Silica-Au will release the colloidal gold particles into the oil and result in a slightly pink color. Granpowder Silica-Au is compatible with most formula matrix and therefore is a very versatile ingredient for cream, foundation, lipstick, eye shadow, eyeliner, mascara, press powder, etc.
INCI NAME
Silica (and) Gold
| Appearance | Light purple powder |
| Odor | Odorless |
| Gold Content, % | 0.020 - 0.021 |
| Non-Volatile Matter, wt% (105°C, 1.5g, 3hrs, Gravity Oven) | 97.0 - 100 |
| Average Particle Size | 3 - 10 µm |
| Heavy Metals | <20 ppm |
| Arsenic | <2 ppm |
| Shelf Life | Three years in a closed container |
| Packaging | 20kg pail |