>>prove it works.
What you meant was ‘unless you can prove it will work on me”
They can’t prove it worked for them, they can only tell you it did. And you aren’t interested in them, you want to know that it will work on you. So that’s not what you meant.
And the inky person who can prove it will work on you, is you after you’ve done it.
It costs you nothing to try.
But you’d rather be angry. We get it. That’s your possession