What product can I get GHB or GBL in at healthood stores/pharmacies?

I want to use it to gain muscle, i have also heard you can get slight euphoria from it.

Does anyone know where I can get this? GNC? Vitamin World? Where?

: http://alcoholdrugstreatment.info/what-product-can-i-get-ghb-or-gbl-in-at-healthood-storespharmacies