Do you guys make sure the product is cold (ice pack) on its way for delivery? The product needs to stay cold.
No international source can do that, as ice packs are only good for 48h and there's no international delivery in 48h.
That said, we don't really see any loss of potency that has been shipped internationally without an ice pack. In the real world, un-reconstituted HGH can last a month or so in room temperature.