A serum is a concentrated solution containing active ingredients that act directly on the skin. This care is recommended for the treatment of specific problems in the short and long term. In order to benefit from the serum's virtues, it should be stored as directed.
How To Store Your Serums Properly.
Published on August 2, 2024, by Stéphanie, PhD, Doctorate in Life and Health Sciences — 3 min of reading
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Where To Store Serums?
Containing sometimes fragile active ingredients, serums and all beauty care products must be stored properly. Highly concentrated in active ingredients, serums must be stored in a dry and cool place far from any source of heat and humidity. However, they are usually kept in the bathroom, the most humid place in the house. The best thing to do is to keep them in the refrigerator. The effectiveness of the active ingredients will be optimized and the serums will retain their properties longer. In addition to the method of conservation, it is good to know that all beauty products have a use-by date written on their container. For example, liquid skincare products such as makeup removers, face creams, eye care products and serums have a shelf life that varies from 6 to 12 months after opening.
Pay More Attention to Antioxidant Serums.
There are serums with highly concentrated formulas that contain active ingredients that are sometimes sensitive. Their storage is therefore essential to ensure optimal performance. This is the case for serums containing antioxidant ingredients such as our vitamin C radiance serum. Fearing certain external factors, vitamin C molecules are precious active ingredients that must be protected from:
Light: As a rule, vitamin C serums are offered in dark glass bottles. The purpose of these bottles is to protect the formula from the sun's rays. Despite this protection, it is strongly recommended to keep the serum away from light, far from windowsills where UV rays could damage the formula.
Humidity: Sensitive to humidity, it should not be stored in the bathroom, which is by nature very humid. A cool, dry place is preferable so as not to alter the formula's effectiveness.
Temperature: Vitamin C does not tolerate temperature changes. Once the bottle is opened, it is recommended to keep it in a cool place, or even in the refrigerator. This will extend the life of the product and optimize the efficiency of the active ingredients.
Oxygen: In contact with air, vitamin C degrades. Therefore, it is important to close the bottle properly after each use but also to avoid leaving the container open too long. In addition, the refrigerator is the ideal place to store the product because the cold will slow down the oxidation process and the serum will degrade less quickly than at room temperature.
However, if these conservation rules have not been respected and the serum changes color, from transparent to yellow, red or brown, it means that it has oxidized and lost its properties. We therefore advise you to avoid using it and to throw it away.
