Oxygen ruins the quality of many medicines. Drug makers choose packaging based on this oxygen sensitivity.
A tightly sealed aluminium foil stops outside air and gases from entering the packet.
Sunlight creates another major problem for specific chemical compounds. Aluminium blocks light completely and acts as a perfect safety shield.
The US Food and Drug Administration also mandates strict protection against light, moisture, and reactive gases.
This silver foil actively shields the medicine from environmental damage.