Peppermint, a source of small amounts of menthol, is believed to work by acting on receptors in the nasal mucous membranes, leading to a reduction of nasal stuffiness. Eucalyptus oil is often used in a steam inhalation to help clear nasal and sinus congestion.
Vitamin D is essential for maintenance of bone mineralization through the regulation of calcium and phosphorus homeostasis. Vitamin D also exhibits many non-skeletal effects, particularly on the immune, endocrine, and cardiovascular systems.
Vitamin B is required in your body for a number of reasons. Like phosphorus, some forms of vitamin B regulate your energy, while others improve your mental capacity and your emotional stability. Phosphorus is necessary for your body to take in vitamin B and use the many forms of it properly within the body.