Contact

Questions about your order, your routine, or whether Toothpaste Booster is right for you? We're happy to help.

Customer support
Fill out the form below, or email us at hello@kalvir.com and we'll get back to you within 2 business days.

Order help
Already ordered? Include your order number and we'll sort it fast — tracking, changes, returns, all of it.

The 60-day guarantee
Not feeling the difference on your first order? Reach out within 60 days and we'll refund it, no hassle. [Read our refund policy →]

Before you email
A lot of questions are answered on our FAQ section within the product page. how to use the dropper, how it works with your toothpaste, shipping times, and more. Worth a quick look; you might get your answer instantly.