I've got Dr Duck's also and it's good.
Now ........ I've also tried/tested used on different stuff, " Johnson's baby oil " and I cannot tell the difference between that and Dr Duck's.
I know, I know that Duck's lasts ages but you can get a great bottle of baby oil for a fraction of the price and as I said...... I can't tell the difference and nor can anyone else that I've asked about this when showing it to them.
Also used it on a leather jacket and leather suite and tried Duck's on them as well with yet again, no difference between the two of them.
If anyone can tell the difference between Duck's and baby oil..let me know, as I'm interested to see/hear it.