You are in full control of your subscriptions and can cancel at any time. Simply log in to your account here: Account Login and navigate to the "My Account" tab in the top right-hand corner. Click on this to view your order history. 

From there, you will click the "My Subscriptions" button on the left-hand side of the screen. 

Scroll down to the "cancel subscription" tab at the bottom of the page and you will have the option to cancel your subscription.  

If you prefer, you can always pause future orders, or skip your next shipment by choosing "Manage upcoming orders" instead.

To re-activate your subscription at any time, choose "View Inactive Subscriptions" and choose the "Reactivate Subscription" button.