When I was researching the home brew many of the YouTube examples used it. I do know you want as pure as alcohol as possible, because water left behind can make hydraulic dents. Probably the other cleaners (if there are any) evaporate off also, the alcohol is just a vehicle to spray the lanolin. Dunno about toxicity, probably something you wouldn't want to do everyday in a small space.
And gads, when I just went back to the www site to look around more, this pops up:
My home brew is based on veggie oil, a tiny amount of dish soap, and 90% alcohol. The only time I have had dented shoulders is when I put too much on. Lately I have been using avocado oil and it works really well. After sizing, the brass get washed in a bucket of hot water with a little simple green and dish soap.
-Seconds Count. Misses Don't-
When I first researched this it seemed like many of the ratios recommended on YouTube were really thick. It seems to me like you could use a lighter ratio and make more squirts, giving more flow before the alcohol starts evaporating off. I do not use a bag or bucket, I just lay them flat on a retired cooking sheet and spray them. The sheet holds about all the Dillon can handle anyway.
Here is a photo of my brew: