Reddit reviews 2 Pack Sterile Empty Vials 10ml by Hospira

You can pull the medicine into a syringe and replace the cap on the syringe and keep it to inject at a later time. Alternatively, you can order these

https://smile.amazon.com/pack-Sterile-Empty-Vials-Hospira/dp/B006TNFSX6

and open all of your ampoules and use a syringe to move the estradiol into one of the empty vials, that way you can fine-tune your dosage without wasting estradiol.

If you want a decent video about gluteal injections, here's one

https://www.youtube.com/watch?v=7R9ZtCF6CRA&feature=youtu.be

https://www.amazon.com/pack-Sterile-Empty-Vials-Hospira/dp/B006TNFSX6/ref=mp_s_a_1_3?crid=ZJMJFAR09ZZ6&keywords=sterile+empty+vial+10ml&qid=1556110972&s=gateway&sprefix=sterile+empty&sr=8-3

You can buy them off Amazon

https://www.amazon.com/Empty-Borosillicate-Sealed-Sterile-Serum/dp/B005DIPY32/

https://www.amazon.com/pack-Sterile-Empty-Vials-Hospira/dp/B006TNFSX6/

Cool, glad I could help. They also sell these sterile empty 5 and 10 ml multi use vials that you can transfer your 1ml vials into to make things a little easier. https://www.amazon.com/pack-Sterile-Empty-Vials-Hospira/dp/B006TNFSX6/ref=pd_ybh_a_90?ie=UTF8&psc=1&refRID=55VR2GJZ8GQK8BAZDPVV

Here is a youtube video showing how transfer from ampul to vial, its not the one I was looking for. The one I was looking for was a professionally done training video for lab employees but I couldn't find it so take every thing this guy says with a grain of salt and double check it but his process looks mostly correct.
https://www.youtube.com/watch?v=xhhtF90aUBE