It really helps when your hella sweaty as well.
Most mascaras have a waterproof option so you can usually get the mascara you regularly use.
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Again, I am an oily beast so setting powder is super important for reducing shine and keeping makeup in place.
Along with primers, eyeshadow primer! Lastly, I recommend bring oil blotting sheets with you into the festival.
Setting spray is your friend! It can be applied with fingers or brushes, I use a small concealer.