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Help Desk

If you have any questions about our products and the way they work, or require assistance with an order, please contact us using the form below. We will get back to you shortly. You can also visit our Customer Service page for more on product shipping and return policies. 



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If you are a retailer and you are interested in carrying ÊTREXA, please contact us at


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

Phone: 1.514.700.4847
Toll Free: (US & Canada): 1.888.779.5509