The number one prevention of eye infections through using makeup is to toss away your expired mascaras. Just like bacon ham, salad and potato chips, makeup are perishable and have expiry dates.

Charming cat mascara - One of my favourite mascaras because it is extremely affordable and I don’t feel the pinch when I have to throw away this SGD4.00 mascara every 3 months.
But how would we know if our mascaras are expired?
First and foremost, there will be an expiry date on most makeup items. Before excitedly ripping open the brand new packaging of your mascara, do keep a lookout for expiry dates. It is usually a tell-tale sign of excessive clogging.
Say, if a mascara expires 2 years from now but you have opened the tube a month ago. Does the mascara expire 2 years later?
The answer is no.
Mascaras dry up really fast due to the fact that we constantly shove the wand in and out of the tube. Each time we pull the wand out, we’re allowing the substance to interact with bacteria which would be transferred to our eyes.
Can you imagine the micro-organisms camping on your eyelash for an entire day while you speak to your clients or boyfriend? Do yourself a favour and think about the amount of bacteria you have on your face hourly because I am sure that your OCD will kick in soon after.
When we pump the wand back in the tube to grab more fibre and mascara, we are actually shoving air in. This will cause the mascara to dry faster and shorten its life span.
And I know for a fact that girls are doing this because I have seen many of them doing this in public toilets (where so much bacteria are lurking).
The life span of a mascara is approximately 4 months, and using it any longer than the life span would cause an eye infection should the substance make contact with your eye.
After 4 months, the preservatives in the mascara will break down and bacteria will enter the tube. Once mascara is contaminated, any transfer to your lash might cause red eye or infection.
To minimize the amount of bacteria that get onto your lashes, only use the wand on clean eyelashes and do not ever touch the wand with your hands. Also, makeup should not ever be shared with anyone unless you want infection to be spreaded to you.
I hope that some of you would discard old mascaras after reading this entry, because saving money on a product is not worth the time and money spent to cure an eye infection.
Shu Uemura eyelash curler