SINGLE OILS [A-z]
A single oil is simply an oil derived from a single plant source. For example lemon oil is pure lemon oil cold pressed from the rind of the lemon.
oil blends [a-z]
An oil blend is a delicate combination of multiple oils derived from multiple plants. For example the Respiratory Blend "Breathe" is a combination of Peppermint, Eucalyptus, Melaleuca, Lemon, Ravensara, Cardamom and Bay Leaf.