US Customer Service

Drop us a line, we'd love to hear from you.

Got a Question? Contact our Customer Service team by emailing

If you have a query you may be able to find your answer quickly in our FAQ section.
If not, please feel free to contact us using one of the methods below.

Whether it’s to place an order, to get information or advice about our products, or how to partner with us, you’ll find all the details you need right here.

SiS (Science in Sport) Limited

Spaces Levi's Plaza 1st Floor

1160 Battery Street East, Ste 100

San Francisco, CA 94111

Customer Service

Email: Please use the enquiry form on the right or alternatively email our Customer Services Team directly at

Live Chat: Please use our Live Support on site for any queries.


Specialist Nutrition Questions

Please email our SiS Senior Sports Nutritionist direct at


Orders, product information or advice

Please use our enquiry form on the right.

Trade enquiries

Email: Please fill in the New Retailer Enquiry Form and a member of our team will get back to you.

International distributor enquiries

Please view our International Distributor page for detailed information.
Alternatively, call our Customer Services Team or use the enquiry form on the right.

Sponsorship Enquiries

Please email us direct at

Website feedback

Please email us direct at

For detailed information please see these pages:

Come and see us on: