How to make your own herb tincture or peppermint oil

Many of the studies done on herbs use an extraction of the plant. Oils are usually used externally; tinctures are for internal use (oil of oregano is actually a tincture).
Source: L.A. Times - Health - Category: Consumer Health News Authors: Source Type: news
More News: Health | Herbs | Oregano | Peppermint | Study