Real or fake primo

[keylo]

I have this shit and I dont know what to make of it It has a white paper label all printed in the same ink .Its made by schering lote #R-082a cad 09.2006 NO REG aeh 36.558. thats all the information on the label i would apreciatie any help you guys can give me its the only thing avialable down here. I wanted to stack it with some duratest.but know.I m cosidering EQ instead of the primo .with witch on of these will i retain the least amount of water. and is there any thing that i could take for the water reteantion.nothing to crazy . I dont want to look fat in the summer I live in miami florida please give me any feed back and thank you again