Toll Free: 866-757-8627
Alternate FAX: 866-422-4312
PO Box 6331
Siloam Springs, AR 72761-6331
- International Customers: 479-549-4536
- International Distributors Contact Information
Monday - Thursday 8:00 AM - 5:00 PM Central Time.
Friday 8:00 AM - 4:00 PM Central Time.
Closed for holidays in 2016: January 1, March 25, May 30, July 4, September 5, November 24 - 25, December 24 - 26, December 31 - January 2, 2017.
Any unopened bottle purchased directly from Houston Enzymes may be returned within 60 days of purchase for a full refund. Products are guaranteed to be active to the level stated on the label, within the stamped expiration date.
If your desired shipping method shows a cost of $99.99, the weight of your of order has exceeded our shipping calculator's maximum value. A more reasonable custom shipping rate will be calculated and applied to your order before your credit card is charged. Contact us (866-757-8627) for more information on large order shipping costs.
Orders (except US Express) placed by 1:30pm CST Monday through Friday will be shipped the day they are received. US Express Mail orders placed by 10:00am CST Monday through Friday will be shipped the day they are received. Orders placed after these times will be shipped the next business day.
The shipping fees do not necessarily represent UPS published rates and may include handling charges levied by Houston Nutraceuticals, Inc. UPS, the UPS brand mark, and the Color Brown are trademarks of United Parcel Service of America, Inc. All Rights Reserved.
On all "USPS Express" and UPS orders there will need to be someone there to sign for the package. If you need it to be dropped off without a signature, we will need you to email or fax a signature waiver request.
Shipping First Class or Priority Mail does not give a guaranteed date of delivery. For a guaranteed date of delivery, select Express Mail or UPS.
Invite Dr. Houston
Dr. Houston would be happy to speak to your parent group at no charge. To invite Dr. Houston to your group, please click the link below.