subject: Cosmetic Products Have A Shelf Life To Teach You To Identify Whether The Deterioration Of Cosmetics [print this page] Possible the arrival of the seasonal period when there are a lot of cosmetics did not run out, such as high-end lipstick oozing sweat, a little dry nail polish, perfume seems to change the taste, the moisturizing effect of the emulsion does not seem stable, acne gel is ineffective ... ... you know how this is going to do? In fact, all chemical compounds, due to the cosmetic use is exposed to oxygen, bacteria, heat or humidity changes, these will be the environment react, thus affecting its efficacy. But also do not have urgent clean-up make-up, simply grasp the reason for the change of the concentration of flavor and color cosmetics, how to prevent these changes, and when they lose them, in order to accurately "to change the makeup!"
The shelf life of cosmetics
You know what cosmetics you can keep, and which must be discarded? Then take a look at the season fresh period of each product, As is not fully updated cosmetics, it would have to know the period of preservation in cosmetics after opening.
Mascara, eyeliner, liquid eyeliner, eyebrow cream: three months;
Shampoo, hair care products and shower gel: 1 year;
Liquid Foundation: 1 year;
Perfume: about 1 year;
Lipstick and lip gloss: 1 year
Anti-aging and acne products: three months;
Body Lotion: 1.5 years, especially the kind of extrusion device;
Sunscreen: Check the period of use on the packaging. But usually Kaifeng sunscreen is not suitable to continue to use every other year.
Nail polish: six months.
They gone bad?
Even if the quality of the cosmetic changes, there is no need to immediately discarded, stir or shake can, of course, sometimes the best way is lost decanting new.
Cosmetic problems: nail polish, liquid foundation, scrub, cream, cream or sunscreen oil slick.
The main reason: in the nail polish in the proportion of heavier pigment will gradually sink to the bottom of the bottle.
Weapon: nail polish, and scrub cream liquid shake; liquid foundation, lotion and cream floating oil layer oxidation performance, it is best discarded, because they can cause allergies.
Cosmetic problem: liquid cosmetics, perfume, lotion, gel, etc. covered with a layer of color.
The main reason: because of the spices on the light-sensitive or pigment fade cream but turn yellow, it does not affect product efficacy. For products containing active ingredients (such as anti-aging or acne products), fading lost a role in those components. Vitamin C will turn brown; vitamin A into a deep yellow; blue copper cream to fade into a yellow and brown,
Weapon: perfume, then you can see it become darker in color, which is subject to oxidation, the best way is to get rid of it. ; Moisturizers and shampoo is a pity that more than one month.
The problem of cosmetics: perfume, gel, lotion or cream distribution of a strange taste.
The main reason: the preservative failure. If the preservative in the shower gel, night cream, or sunscreen failure, the bacteria will breed, and even lead to fermentation. Large amounts of alcohol in the perfume composition, and therefore difficult to produce hazardous bacteria, but bacteria can cause infection.
Weapon: Once they taste, irreversible change. Must be lost. Is not diluted to save the environment away from the glare and overheating.
