What are the requirements for the storage environment of multi-layer cosmetic bottles

Light exposure is one of the key factors affecting the quality of products in multi-layer cosmetic bottles. The active ingredients in many cosmetics, such as vitamin C and retinol, are extremely sensitive to light. Prolonged exposure to sunlight may cause the degradation of these ingredients, which significantly reduces the efficacy of the product. Therefore, it is crucial to avoid placing multi-layer cosmetic bottles in direct sunlight when storing them. The ideal storage condition should be a cool and dry place. In order to enhance the protective performance of the product, many brands will pay special attention to the transmittance of light when designing multi-layer cosmetic bottles, and choose materials that can effectively block ultraviolet rays.

Temperature is also an important factor affecting the storage environment of multi-layer cosmetic bottles. The ingredients of cosmetics may change significantly in high or low temperature environments, especially lotions and creams, whose texture and effects are easily affected by temperature fluctuations. Generally, multi-layer cosmetic bottles should be stored in an environment with relatively stable temperature to avoid the effects of extreme high or low temperatures. For some skin care products containing natural ingredients, too high a temperature may cause the ingredients to stratify or deteriorate, while too low a temperature may make the product too dense and affect the use effect. Therefore, the ideal storage temperature range is usually between 15°C and 25°C, which can effectively maintain the stability and effectiveness of the product.

Humidity is also an important factor affecting the storage environment of multi-layer cosmetic bottles. Excessive humidity may cause the evaporation of water or separation of ingredients in the product in the bottle, thus affecting the texture and effect of the product. Especially in a humid environment, the sealing performance of the cosmetic bottle may be affected, causing air or moisture to enter the bottle, accelerating the oxidation and deterioration of the product. Therefore, when storing multi-layer cosmetic bottles, you should try to choose a dry environment and avoid placing them in humid places such as bathrooms or kitchens. The suitable humidity range is usually between 40% and 60%, which can effectively reduce the risk of product deterioration.

In addition, the cleanliness of the storage environment cannot be ignored. The exterior and storage environment of the multi-layer cosmetic bottle should be kept clean to avoid the intrusion of pollutants such as dust and bacteria. Especially after opening, the shelf life of the product will be affected by the external environment, so care should be taken to keep the bottle mouth clean during use and storage to prevent bacterial growth. At the same time, the place where the multi-layer cosmetic bottles are stored should avoid contact with other chemicals to prevent cross contamination.