How do i contact eenzyme? If you have any comments or questions regarding our products, you can reach us by phone at 800-919-0755 or by e-mail at [email protected]. We want to hear from you.What is eenzymes policy on the use of expired products? Further, eENZYME does not warrant any product that has exceeded its expiration date, has not been stored according to instructions or otherwise has been used outside manufacturer specifications. Also, our manufacturers and eENZYME reserve the right to select the methods that we use to analyze our products.How long does eenzyme take to ship? Tech Support [email protected] Shipping Most domestic orders can be shipped within 24 hours via FedEx overnight or 2-day shipping. Our shipping charge includes FedEx Express or Ground shipping, handling, and insurance. International orders are usually shipping via DHL on Fridays (to Asia) or Mondays (to Europe).