Returns policy

Thanks for shopping at Functional Gut Diagnostics 

If you are not entirely satisfied with your purchase of the Methane CH4ECKTM breath test, we’re here to help you.


You have 7 calendar days to return your Methane CH4ECKTM breath test from the date you received it. To be eligible for a return, your Methane CH4ECKTM breath test must be unopened and in the same condition you received it.

Please contact us at to arrange the return and refund.  We will not refund Methane CH4ECKTM breath tests without prior return approval.

You will need to supply the order number, delivery address and last four digits of the card number used for payment.


Once we receive your item, we will inspect the kit and confirm receipt. If your return is approved, we will initiate a refund to your original payment method.

You will receive the credit within 5-10 working days, depending on your card issuer’s policies.


You will be responsible for paying your own shipping costs for returning the kit, proof of postage will required so the kit should be returned either recorded or special delivery.

Shipping costs for returns are non-refundable.

Contact Us 

If you have any questions on how to return your item to us please get in touch via email or phone.