If you just want to freshen up with a light makeup, then a CC-cream such as this is a great choice. This product has no parabens, which are preservatives commonly used in cosmetics.
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Supergoop! CC Screen - SPF 50 PA++++ CC Cream, 100% Mineral Color-Corrector & Broad Spectrum Sunscreen - Tinted Moisturizer, Concealer & Buildable Coverage Foundation - 1.6 fl oz