and isolated from mechanical vibration and shock during this 24 hour period the mixture becomes a powder it is noted that a cosmetic powder in accordance with an embodiment of the present invention similar to powder 50 can be produced in which the water encapsulated by shells 58 contains desired substances such as vitamins and anti aging compounds beneficial to skin care the substances are added to the water used in producing the powder prior to adding the hydrophilic particles to the water in the process of producing the powder the added substances will generally change a powder threshold concentration of hydrophobic particles required to produce a stable cosmetic powder in accordance with an embodiment of the present invention an emulsion or powder in accordance with an embodiment of the present invention corresponding to an emulsion or powder comprising hydrophilic and hydrophobic silica particles can as noted above be formed from hydrophilic and hydrophobic particles based on oxides other than silica or on a mix of oxides quantities of the u201c other or mixed oxide u201d hydrophobic and hydrophilic particles in the corresponding emulsion or powder are quantities that provide substantially same total surface areas as surface areas provided by the quantities of hydrophilic and hydrophobic particles respectively comprised in the silica based emulsion or powder cosmetic emulsions and powders for which total surface areas of the other or mixed oxide hydrophobic and hydrophilic particles are different from total surface areas of the silica based hydrophilic and hydrophobic particles may also be formed in accordance with embodiments of the present invention fig3 a 3d schematically.