Cirkul water bottles let you create your own beverage-drinking experience, but keeping the process germ-free can be a little more complicated than you'd expect.

Joined the Cirkul clique? Here's how to keep your Cirkul water bottle in sparkling clean, tip top shape so you can savor the flavor of daily hydration.

Oreo is bringing back two flavors to store shelves. One gets a permanent spot and the other will just be back for a limited time.

Garrett Waggoner and Andy Gay came up with their idea for flavored-water startup Cirkul as Dartmouth football teammates — and then made it a $1 billion company.

Garrett Waggoner and Andy Gay came up with their idea for flavored-water startup Cirkul as Dartmouth football teammates — and then made it a $1 billion company.

Garrett Waggoner and Andy Gay came up with their idea for flavored-water startup Cirkul as Dartmouth football teammates — and then made it a $1 billion company.