Of course, we do not generally require
Of course, we do not generally require such a high level of proof before we make everyday decisions (nor are double blind trials easily applied to testing the individualistic prescriptions of much alternative medicine), but given the price of some tonics it is a good idea to question what ‘proof’ means in their advertising: it may mean little more than that the advertising standards people haven’t caught up with this one yet!
If in doubt, you could contact the company asking for more evidence to support their claims. Testimonials may, of course, be falsified, or selectively edited; in any case, many types of hair loss can cure themselves spontaneously, and even the loss leading to male pattern baldness can stop for a few years of its own accord. If the treatment being sold involves rubbing the scalp, or requires more frequent washing, it may be this rather than the product that is having the beneficial effect – hence the use of double-blind trials.
Before you buy a tonic, check the ingredients (mistrust any that insist on the secrecy of their formula) and see whether you cannot in fact produce something similar at home for a fraction of the cost.
h miracle