I advise against ordering nootropics and/or supplements from Amazon. Unless your items are being shipped directly from the manufacturer, they're coming from an Amazon warehouse.
Amazon's warehouses are known to maintain conditions detrimental to the storage of many substances (e.g., lack of proper temperature and/or humidity control).
As such, I strongly recommend sourcing from either: (1) iHerb, which offers competitive prices, or (2) directly from the manufacturer and/or distributor.