Last updated: February 2026
Every ZenSulin order is backed by a full 180-day satisfaction promise. If you are not completely pleased with your experience for any reason, you can request a refund within 180 days of your purchase date — no questions asked.
To start the return process, contact the ZenSulin support team through the official purchase platform. You will receive instructions on how to return the bottles. Returns are accepted even if bottles have been opened or are empty.
Once your returned items are received and processed, your refund will typically be issued within 5 to 10 business days. The refund will go back to the original payment method used at the time of purchase.
The 180-day window starts from your original purchase date, not the delivery date. Original shipping charges are non-refundable. Return shipping costs are the responsibility of the customer. Please keep your order confirmation email for reference.
If you have questions about the refund process or need help getting started, visit our Contact page for support options.