Talk to the Synadentix support team
Questions about your order, the formula or a return? Reach us through the official channels below. This is also the authorized contact channel referenced in our source verification guide.
Phone
Mon-Fri, 9:00 AM - 6:00 PM Central Time. We reply to emails within one business day.
Mailing address
Halewick Oral Care, Inc.
1820 Diehl Road, Suite 240
Naperville, IL 60563
United States
Send us a message
Use the form and we will get back to you within one business day. Include your order number if your question is about an existing order.
For order questions, our support partner handles payment processing and shipping on our behalf. Returns and refunds are coordinated through the contacts on this page. If you are checking whether a bottle is genuine, start with the verification page.
Ready when you are
Have what you need? Pick your supply and start tonight, backed by a 90-day guarantee.