Natural Sealant?? Mink Oil? Other?

[Anachronite]

Question, will Mink Oil or Neatsfoot oil seal a dye into leather and keep it from bleeding onto clothing? if not, are there any other kinds of natural sealants. I hate using modern chemicals other than the dyes themselves if it can be avoided. (I like to use iron and copper acetate dyes sometimes for this reason).

[chrisash]

Resolene and Eco flow sheen are two sealants, mink and NFO lubricate the leather but don't seal it

[YinTx]

As far as natural, the only thing I would think of would be beeswax, but not really a "sealant" in the purest sense of the word.  As mentioned, the oils lubricate/nourish the leather, but do not provide protection or seal in any colorants.

YinTx