One of the classic bitter herbs of European herbalism, wormwood (Artemisia absinthium) has been valued by herbalists for centuries. This tincture from Glastonbury's Indigo Herbs contains nothing but the herb extracted into ethanol, made in the UK to GMP standards with no synthetic additives.

The extract is prepared at a 1:3 ratio, preserving the plant's naturally occurring constituents and its famously bitter character. It comes in a 100ml pharmaceutical-grade amber glass bottle with a dropper, and is suitable for vegetarians and vegans. Traditionally a small amount is added to water or juice; follow the directions on the label rather than exceeding them.

Wormwood is a potent herb best kept to short-term use. It is not suitable during pregnancy, and anyone taking medication should check with a health professional first.