Some of the highest quality herbal powders we offer on Longevity Warehouse are available in capsule form. Some of these powders are from water-extracted herbs and have a tendency to revert back to a gelatinous form through absorption of humidity. Even with very little moisture inside the capsule, the powder may become solidified. The use of excipients, such as anti-caking additives from natural sources, is limited in order to maintain as much active ingredient as possible. Any solidification of the powder will not affect the potency or quality of the herb.