After the expiration date of the expired shampoo, the substances present in its formula undergo major changes or oxidize.
After all, can you use expired shampoo on your hair? The answer is simple, no! Not only shampoo but also various hair products such as conditioner, hydrating masks or other cosmetics.
This is because, after the expiry date of the shampoo, the substances present in its formula undergo changes or oxidize. As a result of this, the assets stop working and, consequently, the product loses its effect. Furthermore, poor conservation of cosmetics can also compromise their effectiveness and render them unusable.
It is very common to use expired shampoo without realizing it, however, it is extremely important to pay attention to this detail to obtain the beneficial results that the product offers and even avoid complications that expired cosmetics can bring.
What happens to your hair when using expired shampoo?
As mentioned previously, expired shampoo loses its integrity and, therefore, its effectiveness, no longer generating the desired effect on the hair. However, the harm does not stop there, as using expired shampoo can also lead to other complications such as the rebound effect, causing dry hair.
Furthermore, there may be more serious complications such as allergies and irritations. This happens because the substances present in the shampoo formula, responsible for preserving the integrity of the product, also lose their effect after the expiration date.
Because of this, the expired product is vulnerable to the action of fungi and bacteria, which can result in allergic reactions or irritations to the scalp and even the skin. Furthermore, scalp irritation can lead to inflammation, which can also cause hair loss.
How to preserve your hair products
However, it is not just expired cosmetics that lose their quality and effectiveness. Improper maintenance of them can also cause problems for your hair.
By the way, every cosmetic or hair product has precise information on its packaging regarding its composition, how to store it and its expiration date. These guidelines deserve your attention as poor conservation causes the product to age faster and can also change its chemical formula.
The main recommendation for keeping your hair products well maintained is where to store them. It is preferable that you store your shampoo outside the bathroom, due to the constant change in humidity and temperature caused by water and steam during the shower.
Furthermore, it is also recommended to always keep the shampoo tightly covered. Otherwise, the product may suffer contamination, causing the proliferation of fungi and bacteria. These, in turn, can cause allergies, irritation or compromise the effectiveness of the product, rendering it unusable.
Therefore, pay attention not only to the shampoo’s expiration date, but also how to store it properly. Also pay attention to changes in the appearance, texture or odor of the product, which may indicate whether it is suitable for use or not.
Now that you know about the harm of using expired shampoo, also check out the effect of talc on your hair.
Source: All Things Hair, Extraordinary Beauty, Boa Forma.
Images: Notícias ao Minuto, Hair by Brian, Homepatia Brasil.
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