From what i've been taught and heard over the years was that March Contracted through BR to put out their blue hearts (still made by march, as you can see in our boy Frankies Pictures of his real-deal bottles of Danabol DS he posted too). People started knockin-off the BR ones which grew to people really needing to know who thier buying from to make sure they were getting the original Bomb diggidy ones. Long story short theres Bunk ones floating around and the REAL DEAL ones from trusted legit sources. Frankie Would be the man to talk to to get the whole story as he very knowledgable in this game (far more then me). THANK GOD I WENT THROUGH A TRUSTED SOURCE!