RXBAR complaint?

Do you have a dispute or a bad customer experience with RXBAR? Report it through our website to maximize the chance of getting it resolved.

We help you write an effective complaint in minutes. Our AI models are trained on thousands of effective complaint letters. Then we push it through emails, social media, paper complaint letters and other tools at our disposal. And you are not alone: our helpful community is there for advice.

Call RXBAR customer service, run by Kellanova Consumer Affairs, on 312-624-8200, or use the contact form in the RXBAR Help Center, linked in the contact details above, where you can pick a topic such as an online order or a quality issue; the Help Center also has order tracking and a chat. Have the wrapper or box with you: consumer affairs usually asks for the flavor and pack size, the best-by date and lot code printed on it and where you bought it, or your order number for an order from the RXBAR online shop.

Bar or order not as it should be? Start your complaint here as well, and we push it out to Kellanova by email, social media and printed letters.

If an RXBAR is unusually hard, stale, melted or moldy, smells or tastes wrong, or has something in it that should not be there, stop eating it and keep the wrapper with what is left. Photograph the bar, anything you found, the best-by date and the lot code, and keep the receipt or order confirmation.

If anyone feels unwell or has an allergic reaction after eating it, get medical advice and note the symptoms and the time. Report it to Kellanova Consumer Affairs on 312-624-8200 or through the Help Center form with the codes and where you bought it, and ask for a reference number. For a refund on a store purchase, the store that sold it is usually the quickest route, under its own return policy; for an online order, include the order number.

Found something in an RXBAR that should not be there? Open a case through our complaint process: our trained AI keeps coaching you on what to send Kellanova and when to push again.

RXBAR belongs to Kellanova, the snacks company that Mars, Incorporated acquired in December 2025: the RXBAR website footer now reads Mars, its terms of use are Kellanova's, and consumer contact runs through Kellanova Consumer Affairs. RXBAR's own story page says the brand was started in a kitchen in 2013 by two friends, without outside investors.

For a complaint about an RXBAR product or online order, Kellanova is the company to name.

Not sure whether to name Kellanova or Mars? We help you write the complaint in minutes and address it to the right company.

Nothing has been reported about RXBAR here yet. Our research shows what typically goes wrong with protein bar brands: bars that are rock hard, stale or melted, foreign objects, allergen questions, online orders that arrive late, damaged or short, promo codes that do not apply at checkout, and refunds for a faulty box.

Opened a box of RXBAR and found the bars hard as stone? Be the first to report it: your case opens the record for the next RXBAR buyer with a box from the same lot.

Your complaint gets its own public page on Complain.biz and we get to work: we bring it to the attention of RXBAR through emails, social media, paper complaint letters and other tools at our disposal.

And we stay with it after you file. Our trained AI opens a case file for you and keeps coaching: what to reply, when to push again, and how to escalate if nothing happens.

Yes. We have an active community of consumers, and complaints here are public: people who ran into the same problem with RXBAR can give you advice or back you up with their own story. A complaint with a community behind it is much harder to overlook.