Contact Us

Contact Us By Email

Please use the form below. We do our best to reply to inquiries within 2 – 3 hours, during business days.

  • Business Hours: Monday through Friday  from 9:00 am – 5:00 pm (PST ).  We are closed all weekends and USA legal holidays.
  • Order Tracking: All orders are confirmed with tracking information. The email for your tracking information will come from  as
    For issues about receiving an order, first review your tracking email and then contact customer service at the address above
  • Shipping: All labs are shipped to any location within the USA except for mailing addresses in California, Maryland and New York. All products are shipped outside the USA.  Additional $40 for shipping will apply for all international orders outside the USA and require longer  shipping times.

Please Complete The Form To Contact Us

NOTE: This form is for inquiries about locating ZRT lab products, shipping questions and other delivery issues.

We do not answer questions with advice about any lab results.  Those require the skill of a trained Health Care Practitioner.