According to the FDA, the absorption rate for liquids is about 97%. For capsules, the absorption rate is about 23%. Liquids begin to act from the moment they enter the mucous membrane of the mouth. Capsules - after the dissolution of the shell. Additionally, those who struggle with a weaker digestive system are unable to dissolve the capsule itself.Nevertheless, many people still prefer the capsule formulation, as it is more convenient to consume, portion into servings, and travel with.