Keisulguhr G is a naturally occurring, soft, siliceous sedimentary rock that is easily crumbled into a fine white to off-white powder.
K 1227 (OTTO) Keisulguhr G, for TLC Cas 91053-39-3 - used for powders and as an abrasive agent in peeling formulations. If improperly formulated, it may be too abrasive as a peeling agent.