Final answer:
Medicines, transdermal drug delivery, and Vitamin D synthesis
Explanation:
Medicines can be tailored to minimize side effects through transdermal drug delivery, which involves applying patches or ointments to the skin that allow medications to enter the bloodstream.
Factors affecting drug absorption include lipid solubility and ionization, as well as the body's selective permeability that allows certain medications to pass through the skin.
UV exposure plays a role in Vitamin D synthesis, influencing calcium absorption and bone health, highlighting the interconnected relationship between skin, medications, and health.
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