This Herb Lab kit is a keeper! It's a gateway to making all sorts of things, so PROMISE us you will keep your tools and build your home herb lab! The product focus is the sort of cough that keeps you up all night. This kit contains olive oil, menthol crystals, 2 herbs, an electric hot plate that won't burn you, and a metal container. The informative booklet covers plant identification, step-by-step directions, chemistry and physiology for the "why" and the "how", and more.