Gems, leaves, tender branches and bark are used. Leaves and gems contain trementine, essential oil and colophony. Bark contains flavonoids, anthocyanides, trementine and tannins. Commission E of German Ministry of Health has approved the use of essential oil and trementine for treatment of common cold and topical use on joints, muscles and neural pain. Trementine use is contraindicated while pregnancy, suckling and childhood. Bark extractor (Pycnogenol) which is traditionally used as blood vessel protector and anti-oxidative agent is not contraindicated during breastfeeding.