Jin is cheaper, supposedly a little lower quality, and doesn't come premixed. Nutropin AQ comes already dissolved, 30iu's per 2ml vial, 3 vials(90iu's) per kit. Has to be kept cold the entire time since it's already in solution, but it's great stuff even at 2iu's/day. Btw, not saying jin is bad at all, just that Nutropin is supposed to be even better but more expensive.
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