The water content material of
HPMC empty capsules is normally between five% and seven%, a few even less than 3%, which is almost 60% lower than the water content material of gelatin pills.
It must be mentioned that the stability of the pill shell itself is carefully related to its water content material. When the water content is below 10%, the gelatin pill shell becomes brittle, with a hazard of over 10% brittleness; When the moisture keeps to decrease to 5%, a hundred% brittleness will occur. Even if the water content of the HPMC pill shell is less than 1%, it's going to not wreck.