would HGH with penetrate be an effective way of aborstion thru the skin?

Molecular weight. If it were viable, a major drug company would've been all over it a long time ago.
RTR.
There is some work in the literature where they are getting sublingual absorption with insulin.
here's web site with a product that claims they have done just that,
http://www.vitanatural.eu/en/hgh-hor...dc74d9655a0dc3