Growth hormone is a protein; it is destroyed if given by mouth. Even so, knowing that injections aren’t popular people began to market sprays, sprays that do not work. They are either homeopathic or they are sublingual amino acids. “Sublingual Amino Acids – The contention here is that sublingual amino acids will be absorbed more quickly, thus, increasing blood concentrations more effectively.  Once again, this has never been shown to be true.  To my knowledge, there are no studies looking at sublingual amino acid delivery.  If you look at it from a strictly biological point of view, amino acids are rather large molecules with very poor lipid solubility and are probably not absorbed very well at all sublingually.  Not only that, but typically effective dosages of even important free-form amino acids, such as glutamine and taurine, in gram quantities.” Bill Phillips Sports Supplement Review.

So think of this before you spend $50 or $60 for a HGH spray, below is information taken from another site. You can get your own bottle of HGH spray (that does nothing) under your own label for less then $10 a bottle.