Why does the medicine and perfume bottle has a dark color?

To protect the content from direct sunlight.Why does the medicine and perfume bottle has a dark color?
Light and heat may affect the compounds in the bottle. So to prevent the solutions inside the bottles turn into different solutions, and to prevent the solutions from being vaporized, dark coloured bottles are used.Why does the medicine and perfume bottle has a dark color?
what does it mean
Becuase sometimes, light can oxidize the chemicals inside the bottle, so if you have a dark bottle, light can not pass throu as easily and the medicine/perfume lasts longer