There is no law against what you do, but I don’t take lightly to being contacted in name by a manufacturer who is trying to sell their product and remains nameless!
Having said that I have been quite aware of your products for some time now and whatever judgment I make, I will make, not based on your site or what you say, but on the input and experience of people and individuals who are trying to assist each other in trying to recover or even halt deterioration from a serious disorder/disease.
I have nothing against you or your devices but you do not endear yourself to people by contacting them in this way and it may well have the opposite effect.