Essential oils are the aromatic oils obtained by steam or hydro distillation of botanicals. Various parts of the plants can be used to obtain these oils; this includes the flowers, leaves, seeds, roots, stems, bark, wood, etc. HEAL’s Essential Oils come from small, family-owned farms in the United States and over 40 other countries. Botanical supply experts inspect these sites to ensure that organic practices are in place. Doc Harmony has chosen the highest purity and quality oils she can find for her customers. Testing verifies the materials are pure and free of contaminants like chemical pesticides, herbicides, fertilizers or other adulterants.