It has the word homeopathic associated with it. It is therefore unworthy of consideration. Not to mention it claims oral HGH supplementation is effective (in homeopathic doses, no less!).
Honestly, I wouldn't worry about trying to boost GH unless you want to go truly dark side with injections (and this isn't the right sub forum for that); if you're within normal ranges, the small boost you might get from an OTC product isn't likely to achieve anything noticeable.