"The preservation of cosmetics is also a science." Improper preservation of cosmetics can cause skin allergies and poisoning. Consumers should understand the correct preservation methods of cosmetics.
How to store cosmetics correctly?
Avoid damp cosmetics: Many people like to put cosmetics on the wash table and expose them to damp environments for a long time. Some cosmetics contain protein, which is prone to mildew when exposed to moisture. If the packaging is made of glass bottles with iron caps, the iron caps are easy to rust after being damp, corrode cosmetics, and make them deteriorate.
Keep cosmetics away from sunlight, and should not be stored in direct sunlight or light. Light exposure will cause the moisture of cosmetics to evaporate, and some ingredients will lose their effectiveness. Ultraviolet radiation will cause chemical changes in some of the ingredients, resulting in paste shrinkage, oil-water separation, etc., affecting the original efficacy and even adverse reactions.
Avoid contamination of cosmetics: After using cosmetics, the bottle caps must be tightened in time, and hand hygiene should be paid attention to when taking. If you take more than one at a time, do not put it back in the bottle to prevent bacteria and other microorganisms from invading and breeding.
Cosmetics are afraid of cold and heat. If the cosmetics are left outside in the cold for a long time, it will cause the cosmetics to freeze and crack, and the oil and water will separate after thawing, the texture will become coarse, and the skin will be irritated during use. Excessive heat will affect the stability of cosmetics, easily cause the loss of moisture or alcohol in the cosmetics, and may also cause separation of moisture and cause deterioration.
Expired cosmetics can be reused
The cosmetics have expired, so I dare not use them and throw them away. This is also the practice of many people. In fact, if you dare not use the cosmetics after the expiration date and are reluctant to throw them away, you can try to use waste. Some lotions contain alcohol, which can still be used to wipe desks and computer screens after expiration. There are many emollients in most face creams, which can be used to maintain leather goods and bags. Facial cleanser contains cleansing ingredients, which can be used to clean clothes, shoes, etc. in an emergency.