Or, in the case of mineral oil - never. That's the weakness. It collects
dirt and microbes in its sticky grip and makes it difficult for polar
solvents like water, even with the help of surfactants, to get to 'em.
Lint free and disposable.
I use two step process. Walnut oil in several coats until it doesn't
want to rapidly absorb. Then I have a mixture of mostly walnut oil
with beeswax in it. I heat that up on my shop glue double boiler and
spread some on then buff it off when it solidfies.
Seems to work great, but I've never used mineral oil, so I have no
point of comparison.
Everywhere. Like everything, it's dose dependant. If you chug the bottle,
might take one or two to show an effect.
Experiments in mice have shown a significant decrease in prostate cancer in
mice fed linseed, so you might just want to consider it a medicine and limit
your dose to what's on the prescription.
Was the linseed treated with salts of cobalt, manganese, etc.?
See Section B.4 and "Annexe 1" of the following publication:
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