This comes from my personal swipe file, and it's from a weight loss supplement I helped write an advertorial style web page for, a couple years ago.
After coming up with about 4 dozen headlines, we finally narrowed it down, and decided to split test the following three.
Each headline got 1000 page views. And with no other changes to the page, but the headline, one of them out-performed the other two by a wide margin (nearly 200% bump in response over the second place contestant)
Can you guess which headline was the winner?
#1 ) Weight Loss Breakthrough! - Scientific Research Uncovers A Plant Based Molecule That Activates Your Body's Own Natural Fat Burning Metabolism - With No Dieting, And No Strenuous Exercise
#2 ) Laboratory Tests Confirm How This All Natural Supplement Safely And Effectively Melts Fat From The Body
#3 ) Could This All Natural Herbal Supplement Be The Cure For Obesity?
So, what's your best guess?
And for a bonus question... "Why" do you think the winner did better than the other two?