galenIQ™ has a very low hygroscopicity. At 25° C, it adsorbs virtually no additional water up to 65% RH. Significant water uptake begins only above 85% RH. This characteristic enables galenIQ™ to provide optimal protection even for moisture-sensitive active pharmaceutical ingredients (APIs), which is a decisive advantage over other bulk excipients. Furthermore, the low hygroscopic nature combined with an anti-caking property eases production processes such as mixing, agglomeration or tableting and helps to reduce the need for costly protective packaging.

Figure: galenIQ™-Sorption Isotherms (at 25°C)