I never said free, however....for you to charge what you do claiming what's in a bottle really is what it is and that it does what it does...without a testing label or proof...you could piss in a vial and sell it and without that proof no one would know.
I like you Phil and it wasn't an attack, however, getting in arguments with your customers (I've personally spent over $3,000 at Ergo) isn't really the best way to get them to continue shopping or to try new products.
Supplements, bodybuilding.com/samples - Many MANY supp companies do this.
Attorneys, no because they never say they WILL win.
Accountants, most accountants do give a discount if they don't save you money.
Teachers, They practically do already.
Painters, Why would they?
Contractors, Depends on what they're contracting, some have to.
Doctors, their MD is their proof.
Dentists, see above.
Military service men, should get paid more or less or it's based on the amount of kills or lives saved or.... what?