For all US orders, each test kit comes with a prepaid return label that can be used to ship the sample back to Bristle's laboratory for processing. The return label can be found in the bottom of the test kit.

For all Canada orders, customers are responsible for arranging and covering the cost of return shipping. The laboratory's address for shipping your sample is:
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Bristle Health
1445 N Loop W,
Suite 820
Houston, TX 77008
USA
+1-832-761-9647