Does Stinging Nettle Have an Essential Oil?

Technically, yes – but only a tiny amount. When we think of essential oils, plants such as lavender, peppermint or lemon balm may come to mind. Stinging nettle is very different. Researchers have managed to isolate and analyse volatile oil from Urtica dioica, but the...

The Science Behind Calendula’s Golden Flowers

Calendula’s brilliant yellow and orange flowers are not just beautiful. Their colour is connected to some of the plant’s interesting natural chemistry. The flowers contain carotenoids, a family of natural pigments responsible for many of the yellow, orange...

Why Is Real Lemon Balm Essential Oil So Valuable?

Lemon balm may grow happily in gardens, but obtaining its essential oil is another matter. Melissa officinalis produces only a small amount of essential oil, making genuine lemon balm oil relatively valuable. The oil is characterized by its high content of citral –...

Why Isn’t Every Sage Oil the Same?

A bottle labelled “sage essential oil” may sound like a clearly defined product, but chemically, sage oils can differ considerably. The essential oil of Salvia officinalis usually contains three particularly important groups of compounds: thujones, camphor and...

Why Does Peppermint Feel Cold?

Peppermint can make your mouth or skin feel cool even though it does not actually lower their temperature. The key compound behind this characteristic sensation is menthol, the major active component of peppermint essential oil. Menthol interacts with sensory pathways...