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Expired cosmetics and makeup: what are the risks?

All cosmetic products, including makeup, have an expiry date. Therefore, caution must be exercised when purchasing to prevent skin problems. Storage must also be carried out rigorously to prevent their deterioration before the use-by date. Otherwise, what risks are you exposing yourself to? Discover all our advice on this subject.

Summary
Published November 16, 2021, updated on February 19, 2024, by Stéphanie, PhD, Doctorate in Life and Health Sciences — 3 min read

What are the risks for the skin?

One must pay attention to the expiration date indicated by the manufacturers. Indeed, the treatments may become ineffective and will no longer be able to provide optimal protection. This is particularly the case for sun creams, which are supposed to shield the skin against UV rays.

The risks associated with using expired cosmetic or makeup products are numerous: irritations, infections, imbalances in the skin flora, itching, inflammations, skin eruptions, redness. Don't forget that after several months of use, bacteria can develop. Initially, the consequences may be limited to itching or redness. Subsequently, you may notice serious symptoms, such as inflammations, or even spots.

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How to recognise expired skincare or makeup products?

Particular attention must be paid to what is written on the label or packaging. Two indicators are used to identify the expiry date:

  • The first is the "Minimum Durability Date" or MDD. You can recognise this indication by the phrase "Best used before end (date)". This is only mandatory for cosmetic products whose minimum durability is less than 30 months ;

  • The other indicator is the P.A.O., which stands for "Period After Opening", for those that can last longer. Indeed, only this indication is required. It is represented by a logo in the shape of an open jar. The date is indicated by a number and the letter M for "month". In other words, once the skincare or makeup product is opened, you will have this period for its use.

The following signs can also alert you to the quality of the product:

  • Alteration of the texture (lumpy, viscous or biphasic appearance);

  • Unpleasant smell (sour or alcoholic odour);

  • Alteration of the colour.

Tips for preserving your skincare and makeup products.

To maintain the quality of your skincare and makeup products, ensure they are stored in a dry place, shielded from sunlight, and kept away from moisture and heat. This will help prevent the growth of germs. Of course, don't forget to check the expiry date on the labels or packaging. It's also important to ensure they are properly sealed after use. These rules apply whether it's a moisturising cream, lipstick, mascara, or facial serum. If you're a fan of organic skincare, pay close attention to the minimum durability. Indeed, as they contain fewer preservatives, they don't last as long as traditional skincare products.

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