Contact Us

Ask us anything. Millstone will answer any question you have—whether it's about the volcanic soil in Costa Rica or our products. Of course, if you have any feedback, we're eager to hear that too. Your comments are important to us, and although we can't guarantee an immediate response, we promise to get back to you within two business days.

Product Questions:

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We respect the privacy of all of our online users, especially children. We do not intend to collect personally identifiable information from children younger than 13. Our policy is intended to adhere to the Children's Advertising Review Unit (CARU) privacy guidelines and the Children's Online Privacy Protection Act (COPPA). We encourage parents to monitor, supervise, and join their children in online activities.