# Money-back guarantee instead of payment message in cart: +16.1%

- Outcome: Won
- Page type: Cart (Ecommerce)
- Elements: Money-back guarantee & returns, Payment icons, express checkout & BNPL
- Test run by: [Visually](https://liftarchive.com/practitioners/visually/)
- Commentary by: LiftArchive (our analysis, not theirs)
- Original source: https://visually.io/public/case-studies/supergut
- Page: https://liftarchive.com/test/supergut-cart-money-back-vs-payment-message/

Replacing a flexible-payment message with a '30-day money-back guarantee' message below the cart button lifted Supergut's conversion rate by 16.1%. Visually ran this test with Supergut, a gut health supplement brand, and published it as a Visually case study. Only the message changed; its spot in the cart stayed the same.

## Result

**+16.1%**

- Conversion rate: +16.1% with the money-back guarantee message.
- This was a swap, not an addition, so the guarantee beat the payment message head to head.
- Sample size, duration and confidence level were not shared.

## Control

Below the cart checkout button, a message promoted flexible payment options.

## Variant

The same spot showed a '30-day money-back guarantee' message instead.

## Why it likely won (our reading)

- For a supplement, the main worry is whether it will work. A guarantee speaks to that risk directly.
- Supergut's order values may be low enough that paying in installments matters less to shoppers.
- The message sits right at the checkout button, the point where doubts stop a purchase.

## Caveats

Visually reported this result in its own marketing case study. Sample size, test length and statistical confidence were not shared.

## How to run this test

- Hypothesis: If we show a money-back guarantee below the cart checkout button instead of a payment message, then conversion rate will rise because it removes the risk of trying the product.
- Primary metric: Conversion rate
- Guardrail: Refund rate
- Guardrail: Checkout start rate
- Guardrail: Average order value
- Who should test it: Stores with a real guarantee and products where buyers doubt the results, such as supplements. It may not win for high-ticket items where payment plans matter more.

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Credit: Visually ran this test and owns the result. Summary and commentary by LiftArchive (https://liftarchive.com/test/supergut-cart-money-back-vs-payment-message/).
Usage: Free to use, quote and build on, with credit and a link: name the practitioner or organization that ran the test and link to its LiftArchive page. The results belong to the practitioners who ran and shared them; the summaries and commentary are LiftArchive's.