Promotion applies only to products shipped and sold by Amazon. For a limited time, Amazon takes $15 OFF any $60 purchase on select Optimum Nutrition & ISOPURE & BSN products. This lands you – 5LB BSN Syntha 6 + AMINO X – for $48 shipped. Amazon already has the lowest shipped price on these brands and with this promotion you can save even more. Just add your selected products from the promotion page and the discount will be applied.