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Time to toss - when to say goodbye to that cosmetic or cream
Most mineral powders are applied using a makeup brush in the lid of the container, so there is a low risk of bacterial contamination in the makeup container. Several popular brands of mineral makeup, including Bare Escentuals, claim to have an indefinite shelf life, but, if makeup brushes and applicators are repeatedly dipped into the product, or if the powder is exposed to moisture, it may become a host site for unpleasant bacteria or mold. To be on the safe side, check for an expiration date on the package, and even if there is none, toss mineral powders after three years.
Liquid foundations, which are routinely exposed to air, brushes, and bacteria-breeding foundation sponges, can begin to separate and lose pigment over a period of time. To lengthen the life of your foundation, pour a small amount of product into your hand or onto a makeup palette, rather than touching the applicator directly to the mouth of the bottle, and make sure you secure the lid tightly when finished.
Most creamy cosmetics have a slightly shorter shelf life than their powdery counterparts, and lipstick is no exception. Products that come into contact with your mouth or hands, like lip liner, lipstick, and lip gloss, are at a high risk for bacterial contamination. Lipsticks will often develop an unpleasant odor once they are past their prime. Play it safe and get rid of any open lip products after one year.
Eye makeup, particularly eye pencils, like any other product that may come in contact with your mucous membranes, has a high risk of contamination. To prevent the spread of bacteria, which can lead to pink eye, among other nasty things, never share eye makeup or tools with others. Powder cosmetics, applied using a brush or Q-tip, have a lower chance of becoming contaminated than cream shadows and pencils, but should still be tossed out after a year. Mascara has a slightly shorter shelf life than other eye makeup products, due to the potential for contamination in the tube and the product’s exposure to air. To keep your mascara from drying out before its time, refrain from pumping the mascara wand into the tube, and get rid of the whole tube three months after opening it.
Nail polish has a tendency to thicken over a period of time, making it difficult to paint evenly onto nails. Throw out nail polish after 18 months, or as soon as it gets a goopy consistency. To extend the life of your nail polish, keep it cool in your refrigerator.
Vitamin C products:
Vitamin C, which has been proven to have benefits in both its ingestible and topical forms, has one of the shortest shelf lives out there. Vitamin C has a half-life of approximately 30 minutes when consumed in food, liquid, or pill form, and creams and cosmetics containing this ingredient don’t last much longer. Once exposed to air, vitamin C begins to oxidize, making it less effective, and increasing its harmful side effects, including upped production of free radicals. To get the safest and most effective bang for your buck, look for products with a high concentration of vitamin C, or those that contain vitamin C derivatives, which last longer. After one year, get rid of any opened topical vitamin C products that you haven’t used.
Depending on your preferred formula, fragrance can either deepen with age, or, in some cases, lose its scent almost entirely. If your perfume is smelling less sweet than when you bought it, it’s up to your discretion whether or not it’s time to give it the old heave-ho. Most commercial perfumes contain a high percentage of alcohol, which evaporates quickly, so make sure you close your bottle tightly to keep your fragrance fresh.
Sunscreens lose effectiveness over a period of time, making you more prone to the damaging effects of the sun’s rays. Some sunscreens have an expiration date on the bottle, but those that don’t should be replaced after three years, when the SPF factor is likely to have become less effective.