One of the most objective ways of clearing out the excess makeup clutter is to toss anything that has been exposed to air too long to be safe and effective. Follow these guidelines once the product has been opened.
Mascara 3-4 months
Waterproof Mascara 1 ½ months
Lipstick 1-2 years
Eye Shadows 2 years
Powder 2 years
Facial Cleanser 1 year
Moisturizer 1 year
Foundation, oil based 1 ½ years
Foundation, water based 1 year
Brushes wash every 2-3 months
Velour puff wash weekly, discard after 6 months
Sponges wash weekly, discard monthly
Over time your cosmetics accumulate bacteria from finger use and from brushes not cleaned properly, using expired makeup products can cause skin irritations and even breakouts.