Can the products within my subscription vary or do I need to keep it the same with each order?

You can change your subscription product without canceling your subscription. Changes should be made at least 3 calendar days prior to your subscription order shipping. To make changes to your upcoming order, please visit the ‘Subscriptions’ section within the My Account section and edit your order. If your remaining subscription order total falls below $40, you will be charged $7 for shipping or you can add other products to the order until it is above $40. Free shipping applies to orders over $40, net of tax and discounts.