"• Stinging nettle leaf is traditionally used as respiratory support for stressful seasonal change. • Freeze-drying preserves the key constituents of nettle’s stinging hairs— histamine, 5-hydroxytryptamine, acetylcholine and formic acid. • Inhibits the body’s production of arachidonic acid and leukotrienes. • Delivers 420 mg per tablet compared to 300 mg in most competing products. • Suggested daily use supplies the dosage used in clinical research. • Organically cultivated! "