It honestly won't do anything. Save your money.
The best thing you can take to naturally increase growth hormone levels in the body is the SARM nutrobal. Nutrobal is an HGH analogue. It signals the pituitary gland to increase HGH output in the body. It will be WAY stronger then any sort of amino acid 'gh' booster.
You can read up more on nutrobal here ->
http://www.evolutionary.org/nutrobal-mk-677-ibutamoren