Re:Free TRIBULUS with JACK3d
It isn't unsafe to use an unknown brand of tribulus, much the same as it isn't unsafe to use an unknown brand of mineral water. The only difference is that the water will do slightly more for your natural test production.
But hey, at least you didn't pay for it :)
Current training: 6-day split
Current cycle: Test E @ 500mg per week
Height : 192cm
Weight : 272lbs
Body Fat : 15.4%