alpahomega.com was one of the largest promoters of black salves, the website still operates but you can not order anything for the rest of the owners life. He made the salve and charged you $50 for a tiny little jar that he has less than $3 total in.
I use a source that uses too large of a jar, 1oz and 2 oz, this is enough for a lifetime and about 10X more than alphaomega sent people. I think ours is under $30, I don't have it on any list and rarely sell it.
A Naturopath used this same source for many years and it works very fine.