A small $12.95 packaging charge will be added to all orders to cover the cost of a Styrofoam box and cold packs that act like a mini cooler box to keep the probiotics alive in transit through our free 2nd day delivery.

2nd Day orders are shipped on Monday, Tuesday if placed before 4:45am, and Wednesday if placed before 12pm Pacific Time. (No orders are shipped on Thursday or Friday)

Overnight orders are shipped on Monday, Tuesday, Wednesday, and Thursday if placed before 4:45am Pacific Time (no orders are shipped on Friday)

For all International orders shipping fees will be calculated after an order is placed. You will be contacted by our representative with the shipping quote shortly after we receive your order. Please call 1-805-371-4737 Ext. 2148 for more information.




If at any time you are not 100% satisfied with the quality of your Natren probiotic product purchase, we want to know. Your feedback enables us to continually improve our premium line of probiotics and provide you with the most effective probiotic to meet your individual needs. If you are not satisfied for any reason, contact us at or cali 1-866-4-NATREN (866-462-8736) to speak with one of our probiotic specialists within 90-days.

On your first purchase, we offer a 90-day money-back guarantee on the purchase price of the product, limit one per customer household.


To be eligible for a refund through our money back guarantee, you must have ordered directly from either or from one of our probiotic phone consultants. You may contact us at or by calling 1-866-4-NATREN (866-462-8736) for quick and easy refund assistance. To complete your refund, we require a receipt or proof of purchase, and return of all empty, opened, and/or sealed products.

Purchases made at a retail store location are not eligible for any refunds or exchanges directly from Natren. You will need to contact the store where you originally made your purchase and follow their return policy guidelines. Please read more about unauthorized resellers here.
This 90 day money back guarantee is available to first time customers only. Limit one refund per customer household. You can always return any item purchased from Natren direct (by phone) or for any reason within ninety (90) days of purchase (the product ship date is considered the date of purchase), and receive a refund for the product purchase price, less any shipping and handling charges which are non-refundable. Natren reserves the right, at its sole discretion, to reject any return that does not comply with these requirements.


Once your return is received and inspected, we will send you an email to notify you that we have received your returned item/(s). We will also notify you of the approval or rejection of your refund. If you are approved, then your refund will be processed on the purchase price of the Natren probiotics, and a credit will automatically be applied to your credit card or original method of payment, within 30 days.


If after 30 days, you haven't received a refund, first check your bank account statement. Then contact your bank as it may take some time before your refund is officially posted. There is often some processing time before a refund is posted. If you've done all of this and you still have not received your refund, please contact us at or by calling 1-866-4-NATREN (1-866-462-8736).

EXCHANGES (if applicable)

Natren will only replace probiotics if they arrive to the customer defective or damaged. To be eligible for an exchange, your probiotics must be unused and in the same condition that you received them. They must also be in the original packaging. Contact us at or by calling 1-866-4- NATREN (1-866-462-8736) for quick and easy assistance.


To return your probiotics, mail them to: 3105 Willow Lane Westlake Village, CA 91361. You will be responsible for paying for your own shipping costs for returning your probiotics to us. Shipping costs are non-refundable. You should consider using a trackable shipping service or purchasing shipping insurance, as we cannot guarantee that we will receive your return, Natren is not responsible for packages returned to you or lost packages during shipment.