Hello,, why you need HGH (human growth hormone boost), are you a body builder? Or you want to increase height. You can't increase your height in this age. For weight increase there are good whey protein supplements(from thara nutricare, ssn nutrition, many) they contain all branched chain amino acids which help to increase weight. And exercising daily with good night sleep of 7 hours will help to increase growth hormone levels . if you Drink plenty of water with these supplements side effects are negligible. And take all in prescribed doses.