A friend of mine purchased a 50ml 500mg bottle of Sust from a well known guy who makes the stuff at his work(totaly legit). Well after a couple of weeks my friend noticed some crystals as big as a pencil tip in the bottem of the bottle. The guy is willing to replace the bottle but i was thinking if this is the right thing to do. Are the crystals appearing because there is a high concentration of medicine in it? Will he just replace it with a lower dosed bottle? So what im asking is should he keep it or not? Thanks