A new study in International Journal of Biomedical Science has shown that vitamin D can be safely and effectively absorbed through the skin.
Administering substances through the skin in order to be absorbed and distributed throughout the body is known as transdermal administration. Transdermal administration is a relatively recent discovery in medicine and has been used and is currently used to administer various pharmaceutical compounds such as scopolamine (treats motion sickness), nicotine, and testosterone.
The current study used transdermal administration to address an overlooked problem with vitamin D supplementation. This is the problem in which vitamin D deficiency still occurs in people who are prescribed adequate doses of vitamin D.