I used 22 bottles of that product--not kidding. I bought 18 bottles at once, after having already went through 4 bottles.
That was an amazing product. I probably went through 6 bottles of it over the years. The last couple I bought on Ebay after it became unavailable through normal means... at over $100 a bottle. And it was still a bargain at that price.
I wish you could stroll into the local GNC and pick it up today again... but I could say that about a few things that GNC used to sell years ago that are no longer acceptable.. or legal. Remember when GNC sold GHB as a sleep aid? I used to have anxiety sleep deprivation issues after my divorce 20 or so years ago. That shit kept me whole many nights.