Hey there. So I produced an aftershave (splash) product that I love and use all the time. I would like to try my hand at selling it, but it contains 25% grain alcohol. And I don't think it would be legal to sell or ship it (unless I had a liquor license) - even though you'd be crazy to drink this stuff! I do have an alternative formula that uses 50% witch hazel and 50% distilled water as the only two ingredients other than the EOs. My concern however is that EO will go rancid or the solution will become polluted in some other way without the alcohol. It's probably 7% alcohol at most. Do I need to use a preservative? If so, which would be best? I've heard grape seed extract is a good option. But I'm kind of a blank slate when it comes to preservatives other than alcohol. Cheers!