Hood's Sasparilla advertisement in the Chicago Inter Ocean 1895 (1)
The pattern
This still is filed under Borrowed medical authority.
Define
The claim wears a lab coat: a diagram, a percentage, a clinical tone that is not necessarily a clinician.
Mechanism
Authority costume. Science-looking form transfers trust. Use it only when the substance matches, or we are documenting a historical mechanism. We do not recommend the abuse.
Verdict
We have real evidence and the buyer needs it in a form they already trust: a chart, a protocol, a named standard.
Why it works
It uses a highly specific, scary medical condition and follows it with a detailed, personal story of a mother finding a cure for her child.
Steal this when
You are selling a health or wellness product and have a powerful, specific customer success story about overcoming a serious problem.