丁香花苞油（0.5 液量盎司）

I use it mainly for tooth pain, and the steam-distilled purity is noticeable—a tiny drop on cotton does the job without that harsh chemical bite. Only wish the dropper were a bit easier to control, but the 0.5 fl oz size lasts a while.

The little 0.5 fl oz bottle is perfect for travel, and the steam-distilled purity is exactly what I was after for a tooth-related DIY remedy. It's potent, so you definitely need to dilute it, but it does the job well for a fair price.