castor oil best ingested for results?

[cardib]

from reading the many castor oil threads, i am seeing that the ppl who report actual thickening of hairs, both head and body, are the users who ingest it. is what i a saying correct. I've read that castor oil is hard to absorb topically, so would ingest be the best bet.

any castor oil users with results with either method chime in.