Every time I go into this particular GNC they have nothing in stock and if it is in stock there is only one, I’ll buy it, then when i return weeks later, the shelf is empty. One particular occasion, i asked if they had Nitrix and she told me «it’s in the back and I’ll get it later, not now». Is that good business? I think she was more concerned with the personal phone call she was on. Nobody has any knowledge of the products they sell or if they will ever get any in stock. I would suggest just ordering what you want from the manufacturer, it’s usually cheaper and they have what you want.