Keep it cool!
Live in the tropics where global warming has resulted in even hotter temperatures? Consider reserving a space for your pricey make-up in the fridge to save them from meltdown. Stuff like lipstick, eyeliners and other expensive makeup have some waxes and gelling agents that may melt thus lessening their usability. Organics or make-up with natural ingredients normally have no preservatives mixed in so they can indeed spoil and go rancid on you. Some oils degrade in warm weather and so on and so forth, keep them way out of reach of your toddler though, for their normally catchy colors and attractive shapes make them magnets for curious kids.
Keep them on a high shelf in a corner they can’t normally reach(not the freezer for any moisture within them will cause ice formation ruining it forever). A small office fridge or water chiller that has a cool compartment (not a freezer) is nice, kept inside the bedroom, it keeps makeup always within reach and your favorite snacks too!
