Without any data I’ll take a wild-ass guess that it is effective for some people, probably a fairly small number. Most wouldn’t buy such a thing (for obvious reasons) and a great deal of those who do would discard it after the first few unpleasant experiences.
Without any data I’ll take a wild-ass guess that it is effective for some people, probably a fairly small number. Most wouldn’t buy such a thing (for obvious reasons) and a great deal of those who do would discard it after the first few unpleasant experiences.