Refund Policy

Last updated October 10, 2026

We want you to feel the difference. If you don't, you get your money back. This page explains exactly how our guarantee works and how to use it.

90-Day Money-Back Guarantee. Take Bitterkin every day for up to 90 days. If you don't feel the difference, or you simply change your mind, email us at [email protected] and we'll refund every penny. No questions asked. You don't need to send the bag back, even if it's empty.

1. Our 90-Day Money-Back Guarantee

Every Bitterkin order is covered by our 90-day money-back guarantee. The 90 days start on the day your order is delivered, so you get the full time to try it. You don't need to give a reason and you don't need to return the product.

2. What the Guarantee Covers

Bitterkin Okinawan Goya: all bundles (1, 3 or 5 bags), at the one-time price or the automatic refill price.
Rush + Protect ($7.95): refunded together with your order when the order is refunded in full.
Bitterkin Glow and Bitterkin Rest (offered right after checkout): refunded together with your order when the order is refunded in full.

The guarantee covers one order per customer, on your first order of Bitterkin.

3. Automatic Refill Orders

If you chose automatic refills at checkout, your first order is covered by the 90-day guarantee like any other order. You can skip or cancel future refills at any time by emailing [email protected]. See our Automatic Refills and Cancellation Policy for details.

If a refill shipment was charged that you meant to skip or cancel, email us as soon as you can and we'll help you sort it out.

4. How to Request a Refund

Email [email protected] within 90 days of your delivery date.
Include your order number and the name and email address used on the order.
We'll confirm your refund within one business day.

That's it. There are no forms to fill in and nothing to send back.

5. How Refunds Are Processed

Where it goes: refunds are always sent to the original payment method used for the order.
When: we issue your refund within 3 business days of approval.
When you'll see it: depending on your bank or card issuer, it can take 5 to 10 business days to show on your statement.
Amount: the full amount paid for the refunded items, including any shipping or Rush + Protect charge when the whole order is refunded.

6. Damaged or Missing Packages

If your package arrives damaged or goes missing, email us with a photo of the damage or your tracking number and we'll send a replacement at no cost. See our Shipping Policy for more.

7. Late or Missing Refunds

If we've confirmed your refund and it hasn't shown up after 10 business days:

Check your bank or card statement again.
Contact your card issuer or bank. It often takes some time before a refund is posted.
If you've done all of this and still haven't received your refund, email us at [email protected] and we'll look into it right away.

8. Before You Contact Your Bank

Please email us first. A refund through us is faster than a chargeback, and you get your money back without waiting for a bank investigation. If you don't recognize a charge, email us with the last 4 digits of the card and the date of the charge and we'll find it for you.

9. Changes to This Policy

We may update this policy from time to time. The version posted on this page on the day you place your order is the one that applies to that order.

10. Contact Us

Email: [email protected]
Hours: Monday to Friday, 9am to 5pm ET. We reply within one business day.
More ways to reach us: Contact.