Today, we are going to discuss a hot topic in skincare: the selection of sunscreen. Many people have likely experienced discomfort or even sensitivity after using sunscreen products. What’s going on? Is everyone’s skin that fragile? In fact, the problem often stems from the choice of sunscreen ingredients. Today, I will teach you how to avoid these ingredient pitfalls!
Firstly, the root cause of “sensitivity” is not necessarily an allergy; what many experience is often a phenomenon known as “photo-toxicity.” This professional term refers to certain ingredients that react chemically with the skin when exposed to sunlight, releasing harmful energy that causes cellular damage. This process does not involve an immune system reaction, and therefore does not trigger what we typically understand as an allergic reaction.
Among the common ingredients found in sunscreens, there is a substance called “Benzophenone,” particularly types III and X, which are known to be major causes of photo-toxicity. If you feel discomfort after using sunscreen, it’s advisable to carefully check the product’s ingredient list and be particularly cautious of the presence of this type of ingredient. The maximum allowable amount of Benzophenone is 6%, but even at this amount, it can still cause reactions in some individuals.
In addition to photo-toxicity, fragrance components are another source of allergic reactions. For example, “Bergamot” is a fragrance that can not only cause photo-toxicity but also has sensitivity risks. Even trace amounts of perfume and hand cream can irritate the skin, which is why assessing the safety of ingredients is extremely important when selecting sunscreen products.
So, how can you choose the right sunscreen? If you frequently experience discomfort while using sunscreen, it is recommended to opt for physical sunscreens. The main ingredients in these types of sunscreen are zinc oxide and titanium dioxide; these metallic components are less likely to penetrate the skin, thus reducing the risk of allergic reactions. Although a small number of people may still be allergic to these ingredients, their safety profile is clearly much higher.
Furthermore, regarding the use of retinoic acid (Vitamin A acid), you may be concerned about its potential to cause photo-toxicity. In fact, retinoic acid itself does not cause this reaction; it is advised to use it at night primarily because it accelerates the shedding of the stratum corneum, making the skin more susceptible to sun damage. Additionally, retinoic acid is unstable in sunlight, and using it during the day may reduce its effectiveness.
In summary, understanding the ingredients during the process of selecting sunscreen is crucial. This knowledge helps us to avoid the hidden dangers of photo-toxicity and allergens, while effectively protecting our skin from UV damage. I hope everyone can choose carefully and create a skincare regimen that suits them, enabling us to feel relaxed and confident under the sun.