I used GWP for over a year, their GHRP-2/6, mod 1-29, and tada were always hit and miss. SOme batches were good some it was a waste of money. I've been researching with our Forum sponsor Evolved and their IPAM,CJC,letro, and caber are all working amazing. I will stick with EVOLVED from here on out, they have great quality products at a great price, and they also have amazing customer service and shipping times.