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Chemistry
Comparatively Speaking: Adsorption vs. Absorption
By: Anthony J. O'Lenick Jr., Siltech LLC
Posted: September 28, 2010
page 2 of 2
A personal care formulator needs to understand that the two phenomenon are different when they formulate with pigments and inorganic sunscreens. If a pigment coating in a formulation merely adsorbs, the coating will be more efficient. However, if the coating is absorbed into pigment, more coating is needed and the coating will be less efficient.
