Why Is Chamomile Oil Blue?

Chamomile flowers are white and yellow, so it may come as a surprise that their essential oil can be a striking deep blue. Even more surprisingly, one of the compounds responsible for this colour is not present in the flower in exactly the same form. Chamomile...

Chamomile: What Do We Really Know?

Chamomile is one of the most familiar medicinal plants, and some of its traditional uses have also attracted considerable scientific attention. Clinical research provides particularly interesting evidence for chamomile extracts in anxiety, while digestive complaints...

Where Does Chamomile Have the Strongest Evidence?

Chamomile has been studied clinically in several areas, particularly anxiety and stress, digestive complaints and inflammatory skin conditions. One of the most interesting areas is anxiety. Controlled clinical studies using chamomile extract have reported reductions...

What Gives Chamomile Its Power?

Chamomile contains two quite different groups of natural compounds, depending on whether we look at its extracts or its essential oil. Alcoholic and hydroalcoholic extracts of Matricaria chamomilla are particularly rich in flavonoids. The best known is apigenin,...

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...