Most frequently asked questions & answers

Swish4 is a science-driven oral rinse designed to freshen breath, enhance alertness, cool the mouth and maintain endurance.

Swish4 Rinse contains a mixture of peppermint and spearmint oils, which allows for the expulsion of most foul mouth odors. Low dose caffeine inclusion improves focus and performance on both simple and complex attention tasks. Vitamin E inclusion helps maintain endurance when feeling fatigued or stressed. One product with multiple benefits!

Swish in mouth for 30 to 60 seconds and then rinse for the best effect. For more detailed instructions visit our HOW TO SWISH page!

Rinsing your mouth with Swish4 freshens your breath, maintains endurance, and increases alertness.  Caffeine absorption occurs through the buccal mucosa, which are the membranes that form the lining of the cheeks and lips. Caffeine delivery through buccal and sublingual routes is safe, fast, and effective, and begins working immediately.  

Our recommended use is up to 3 times per day.

Out of the 72mg, 56mg (about 80%) is absorbed through the mouth. Low-dose caffeine enhances focus on both simple and complex tasks by being rapidly absorbed through the membranes of the mouth. Low-dose caffeine has also been shown to improve energy, alertness, focus and mental clarity. Historically, scientific research has shown that moderate consumption of caffeine has not been associated with any adverse health effects. 

Swish4® can be safely swallowed but it is recommended to be used as a rinse.