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Need Help?

Please fill out the quick form, and we will be respond as quickly as possible.

Connect With Us

For support on any questions, email us at

Where to Find Us

Sandstone Diagnostics, Inc
6624 Owens Dr.
Pleasanton, CA 94588

Call Us

Customer Support Line
1(888) 241-2476

Non-Customer Support Line
(925) 425-7574

Want Quick Cash? Become a Sample Donor!

Sandstone Diagnostics is always looking for sample donors to help with our ongoing product development efforts. If you are interested in becoming a donor, email and a member of our team will provide you some additional information on how to become a donor including compensation.

All donors are required to answer a few questions about their medical history and will need to sign a consent form. Only men above the age 18, with no prior STDs, and live within a 30-minute radius of our Livermore office are eligible to become donors.

For Healthcare Providers

Trak helps men assess, manage and improve reproductive health from home and in conjunction with their medical providers. To learn more about how Trak is helping healthcare providers to improve fertility outcomes, patient experience and access to care please contact us.