This email from 22 Days Nutrition nails the art of curiosity marketing. Instead of revealing the deal upfront, they tease with a bold question: “Are you ready to solve the mystery?” Boom—attention captured.
Why it works
Curiosity gap: our brains crave closure, so we click to solve it.
Visual contrast: black-on-yellow highlights the “mystery” and keeps focus.
Short copy: every line builds suspense without giving too much away.
Action step: a clear code and “Shop Now” button close the loop fast.
Examples
Amazon Prime Day early teasers hint at “something big” without saying what.
Starbucks app promos reveal the reward after you buy.
Dropbox used mystery offers to boost referral clicks by over 60%.