Customer Service




ÊTREXA products are only available online at and via selected retailers. Just choose the ÊTREXA supplement that’s right for you, add it to your cart and proceed to checkout. It’s that simple. We accept PayPal, as well as major credit cards. Detailed product descriptions and ingredients are also available on all our product pages, and you can contact us with any other questions or inquiries. 

All illustrations show our Canadian products. Due to the differences in labeling requirements, the packaging layout of the product you receive may appear not exactly as shown on this website.

We are committed to helping you keep your shopping experience safe. In accordance with the highest online security standards, all transactions are secure and encrypted. Credit card information is never stored. 


Product Shipping

Please review our Shipping Policy.


Return & Refund Policy

Please review our Refund Policy.


Customer Satisfaction

Your satisfaction is important to us. If you experience any kind of physical discomfort while taking one of ÊTREXA products (e.g. headaches or digestive problems) please contact us using Customer Satisfaction Form.


Help Desk

If you have any questions or require assistance with an order, please contact us using the information below:

Biosentica Laboratories Inc.
315 Place d'Youville, Suite 292
Montreal, Quebec, Canada, H2Y 0A4