Chinese herbology
Raw herbs can be made into capsules at home. All you need is a tailor-made package of raw herbs. Turn it into fine powder with a powerful grinder, and put the powder into empty gel capsules. When you swallow the capsules, your digestive system has to extract the essence out of the raw herb powder. Whereas if you drink the herb tea, the essence extraction is already done after brewing. The herbal solution will readily be absorbed by your body. Furthermore, the herb tea has a history spanning over two thousand years. How many years of history does the tablet or capsule have besides offering convenience?