Totally A plus service. I have tried hgh on 5 occasions, never worth what I expected. Protropin, the first 192 in late 80s I actually responded to. There are so many thingsvthat can go wrong with shipping, etc. Godtropin was giving me results at 8 iu and was inexpensive but stopped working. I love the oh" you have to run it for 10 years then it’ll work" isn’t that convenient?. I only use one American saizen 75mg total and I felt it but was too much money. Actually mk677 from buypeptidesus. Com at 25 to 50mg for months with ipamorelin 500mcg at night and 4 weeks at a ytime of hexarhelin 100mcg x 3 times daily. That helped with keeping me lean while eating a lot. Back to Alex yang, he replied fast to every email and went out of way to get me his generic. I just started, but vials pass every “eye” test solid disk that looks larger because its 4mg per vial. Approx 14iu. Thevvials are vacuum packed and suck the water from syringe. All vials are exactly same. All vials should be vacuumed, that why you pull back 1cc stick it in a vial of test and it should auto pull. Most pha products are that way. Air in vial can cause degradation. Put 2 cc in a carpuject of morphine and it will explode. I totally recommend the dbhgh and will order soon. After 150 emails, a capture, I would of refunded me. But Alex is very sure of product and knows I just wanted a good experience. Hopefully a long one too.