This was my first time ordering from Puratek and I’m very pleased. I was actually there shopping for something else when I decided to look at their Glutathione. Upon further inspection of the COA, I recognized the purple cap on the vial. Couldn’t really see the top of it, but I went with my gut and purchased two vials. Just got delivered and they are in fact 1500mg vials of Fuan Glutathione. I just now went back to purchase more, but they were already sold out. Needless to say, I’m very happy with my purchase.