Non-porous Polymer Microsphere (EA-209) - SEM picture
Textured Composite Microsphere (SILCRUSTA MK03) - SEM picture
Microsphere Complex (DSPCS/3H-I2) - SEM picture
  • Microspheres and Treated Microspheres

    Microspheres are discrete spherical particles ranging in average particle size from 1 to 40 microns. Because of their size and shape they are able to scatter light to diminish the look of fine lines on the skin, effect also known as "optical blurring" or "soft focus".
    They also provide a ball bearing effect, which will impart finished products with increased payoff, an elegant silky texture, enhanced slip and better blendability for a more natural finish. Depending on level used, they can provide a non-tacky, velvety or powdery after-feel ("cream-to-powder" texture).
    They are also used to absorb and deliver oils (porous microspheres such as silicas and silica shells), and as voluminizers for mascaras.


  • Composite Microspheres

    A composite material is made from two or more constituent materials with significantly different physical or chemical properties that, when combined, produce a material with characteristics different from the individual components. There are several possible structures for building a composite microsphere:
    - A modifier dispersed in a polymer matrix: NH-RAS06, MSP-TK04 are based on a PMSQ matrix with mineral modifiers. US-450 has small PSMQ particles embedded within the polyurethane matrix at the periphery of the microsphere to selectively diffuse light.
    - A shell covering a core of a different composition: SESQ-MH5 has a PMSQ/Silica core/shell composition, while SILCRUSTA MK03 has an MMA Crosspolymer core and a PMSQ textured shell. UP-611 has a PMMA core and a Polyurethane outer shell and a unique semi-spherical shape which allows better skin adhesion.
    - A mineral platelet like a pearlescent effect pigment covered with small polymer particles (SK-45-R)


  • Microsphere Complexes

    Solid Microsphere Complexes are blends of materials of different composition which create products with unique characteristics and performances. KoboBlur™ 100 Natural is a powder complex made only of minerals and natural ingredients, using no plastic particles; the ingredients of this complex have complimentary refractive indexes and scatter light in a wide range of formulas.
    Hollow Microsphere Complexes are made using Kobo's patented technology of Isopropyl Titanium Triisostearate treatment, which bonds two unlike materials to yield a spherical complex that has the best balance of properties possible. By varying the amount of these complexes in formulations, an anhydrous hot pour can go beyond a cream-to-powder to a creamy pressed powder like feel. These complexes offer all the benefits of Microspheres and can also bring a lightweight feel to many other product forms.