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Design Proof

Daniela Bolzmann

I built a 7-figure Amazon creative agency working with 850+ brands. We've run 1,300+ split tests. I'm publishing everything we learned.

Platform
Substack
PricingFreemiumPublishesDaily
Issues15Founded2 months agoLast Issue5 days ago
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Latest Issues

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Last month, I went full nerd and did something I’d been wanting to do for years.

Last month, I went full nerd and did something I’d been wanting to do for years. I used Claude to analyze 900+ PickFu split testing polls (now 1038+) from 34K...

5 days ago
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Split testing puts you ahead of almost every brand on Amazon. It still won't catch this.

If you’re already split testing, you’re ahead of almost everyone. Here’s the check even testers skip.

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Every supplement brand on Amazon is fighting over the same badge. We tested it 140 times. The badge almost never wins the sale.

Certifications show up in supplement testing 2.2x more than any other category. And the tests where they dominate are the ones most likely to end in a tie.

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12 days ago
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We spent 3 weeks testing whether AI could do our design work

Where it genuinely earns its place in Amazon creative, where it quietly costs you trust, and the 13 tests this year where shoppers called an image fake without being asked.

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14 days ago
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The “Made in USA” flag won our last main image test. Then a shopper called it “try hard.”

Across dozens of Amazon polls, the American flag keeps showing up as a purchase driver. Here’s what it actually does.

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19 days ago
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  • Daniela Bolzmann

    I built a 7-figure Amazon creative agency working with 850+ brands. We’ve run 1,300+ split tests. I’m publishing everything we learn at mindfulgoods.co

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