Proper care - Store in room temperate in upright position. The blue Hydrate Pure jar contains a white insert which holds the moisturizer for use. The white insert is only placed into the colored jar and NOT glued. Moisturizer should not be left out in the sun or heat as that can cause crystals. If the jar is dropped, then there could be plastic shards that get into the jar. If a jar is dropped then there can be slight cracks in the jar from the improper care, then some of the moisturizer content can leak through those cracks and get into the bottom of the jar.