Cosmetics become dull as time passes, depending on their usage, and fade and lose their original color and charm. Of course, there is a significant difference between old and fresh cosmetics. When a cosmetic is freshly bought, it gives the best results. However, when used a lot, especially daily, it may start loosing its original color and quality. These cosmetics can be kept fresh at all times by keeping them away from heat and sunlight and by keeping them enclosed in a plastic bag or boxes to keep them away from dust and other air pollutants. It is imperative to keep these products away from air pollutants and dust as these products are applied and used on the face and skin and can cause a severe allergic reaction if they come into contact with the dust and other particles.