A special feature of the Zaol Doctor’s Order Synergy Booster is its patented, cross-shaped nozzle. When applying the preparation, it uses acupuncture pressure thanks to its special design. This kind of pressure boosts the effect of the tonic: it accelerates blood circulation, and the nutritious ingredients are directly absorbed through the skin. Reminiscent of an hourglass, the vessel with its generously proportioned cap ensures easy handling even with wet hands under the shower.