Save Your Money and Buy Rubbing Alcohol
That is what is in the bottle, along with a little bit of glycerin.  It's a lot cheaper and easier to buy a big bottle of rubbing alcohol for under $2 and put it in a squirt bottle.  Also, I would recommend purchasing leather conditioner if you are going to be using the rubbing alcohol.  The conditioner will make sure that the alcohol doesn't dry out or crack the leather and comes with the added benefit of softening up the leather.
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