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We'd love to hear from you!


Please have a look through our Frequently Asked Questions before enquiring via email. If you don’t find your answer, we are happy to help at

Post purchase support:

Shipping and delivery questions including changing shipping address after purchase:

All media and press inquiries about Zilch or Dr. Vivian Tam:

Wholesale and to enquire about becoming a stockist:

Please allow up to 3 business days for a response to your email. Thank you for your understanding!


Please see our full list of frequently asked questions here.

Do you ship worldwide?
Yes! We ship all over the world. To see if we ship to your country and the cost, update the country option in the cart for shipping costs.

How long does it take to ship to my country?
For full shipping times and details, please review our shipping terms here.

I have ordered but haven’t received any emails with my order details?
Please make sure you check you spam folder and inbox for our emails. If they have not come through, let us know with your name and address and we can resend your order details to you.

Can I take Zilch while on other medication or supplements?
Yes you can! Make sure you read through our full FAQ for any medical warnings and if you are concerned, please speak with your trusted medical practitioner for any issues.

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