Efficacy (Preliminary) and Safety of Artificial Salivary Containing Cumin and Ginger Extract in Healthy Volunteer

The artificial salivary containing cumin and ginger extract will be used 2 g/time (3 times/day) into the mouth for 6 days. Then, the artificial salivary containing cumin and ginger extract will be stopped for 7-10 days. After that, the artificial salivary containing cumin and ginger extract will be used 2 g/time (3 times/day) into the mouth for 3 days.

The commercial artificial salivary will be used 2 g/time (3 times/day) into the mouth for 6 days. Then, the commercial artificial salivary will be stopped for 7-10 days. After that, the commercial artificial salivary will be used 2 g/time (3 times/day) into the mouth for 3 days.