Bests & Worsts Reviews from Amazon

I’ve have previously bought Vital Proteins Marine Collagen from Sephora and loved it. I bought it from Amazon because of the same day delivery but I don’t believe it is an authentic product. There was no Best Buy date that has always been stamped on the ones from Sephora and the scoop was markedly smaller. I noticed a difference in my skin and nails with the Sephora product, the one from Amazon, not so much. Will not purchase from Amazon again.