Thank you for your inquiry.
There are a number of different skin test protocols utilized to test to progesterone. We have discussed these in detail on our website, and you will be able to find these entries by typing “progesterone” into the Ask the Expert search box.
Progesterone USP in a concentration of 50 mg/mL is available in 10 mL vials. I could not find any smaller amount for purchase. You can order online, or simply call a pharmacist that you have worked with to procure a vial for you.
As noted, the testing protocols for progesterone are discussed in detail in the entries noted above, and you should have no difficulty whatsoever in obtaining a protocol which can be applied with ease by reviewing these entries.
Thank you again for your inquiry and we hope this response is helpful to you.
Phil Lieberman, M.D.