Is homemade sunscreen that is ‘thrilled’ as ‘healthy’ as you think?

Many beauty forums are sharing how to make homemade sunscreen from fruit, coconut oil, aloe vera, beeswax… with the affirmation of peace of mind to use without worrying about irritation, allergies…
The North and Central are in hot sunny days. On the forums, the trend of making homemade sunscreen is being shared by women because the recipe and ingredients are easy to find.

From ingredients of coconut oil, aloe vera, beeswax or avocado oil, almonds, olives, tomatoes, even from loofah…, many groups “tip” to women how to create a jar of anti-wrinkle cream Sunlight with cheap price, natural, safe, especially for people with sensitive skin. “Confidently use without worrying about irritation and allergies” – an account shared. MSc.BSCK2 Nguyen Quang Minh, Deputy Dean of the Department of Research and Application of Stem Cell Technology – National Hospital of Dermatology, said his opinion on homemade sunscreen above is wrong. “The ingredients in homemade sunscreen can easily cause allergies because they cannot remove the impurities in the ingredients used,” said Dr. Minh. Sunscreens from olive oil and beeswax are confirmed by beauty forums to be safe and easy to make. Illustration The expert explained: It is conceivable that, with professional manufacturers, when extracting avocados to put in sunscreen ingredients, they can only take some of the active ingredients, but not all. The same goes for other natural ingredients. “ The combination to increase the effectiveness has also been researched, tested and specifically evaluated, different from arbitrarily choosing ingredients that we believe can achieve sun protection.” , BS Minh analyzed. There are 7-25 different ingredients in sunscreen. Therefore, for each person, it is necessary to determine the criteria to choose the right one, not merely based on a certain formula to test on their facial skin with the belief that “natural products should be safe”. . Sunscreens are divided into two main categories: chemical sunscreens and physical sunscreens. In particular, homemade sunscreens with natural ingredients are classified as chemical sunscreens. This type of sunscreen contains organic ingredients, reduces UV rays, avoids damage to the skin, and has a soft, comfortable texture, but is less sustainable under the influence of the environment. Physical sunscreens have metal oxide ingredients (such as titanium oxide, zinc oxide), the nature of use is often sticky (due to the thick cream texture) and whiter tones … Physical sunscreen (Sunblock) is an inorganic sunscreen that has the ability to reflect UV rays, preventing UV rays from penetrating the skin. The main ingredients in physical sunscreens are usually Zinc Oxide and Titanium Dioxide. Chemical sunscreens (Suncreen) will absorb UV rays to decompose and treat before they cause damage to the skin. The main ingredients in chemical sunscreens are usually: avobenzone, oxybenzone, Tinosorb, octylcrylence… Studies around the world show that physical sunscreens are very benign while chemical sunscreens are more likely to cause allergies and are less commonly prescribed by dermatologists for people with sensitive skin. Dr. Minh shared, many people think that homemade sunscreen is safer because of its natural ingredients, but the truth is that doctors often recommend People with easily irritated skin, acne-prone skin should use physical sunscreen instead of chemical sunscreen because it can make the condition worse. . A sunscreen product must also be concerned with the SPF – showing the time and coverage of the sun. Specifically, sunscreen with SPF 30+ can cover and protect skin 93 – 94%, SPF 50+ can cover and protect 97 – 98%… One SPF is equivalent to 15 minutes of protection. Based on that, the user considers which cream is suitable for the day’s activities. For example, when going to the beach, it is necessary to choose a sunscreen with a high SPF, from 50+, and proactively reapply the cream to protect your skin. These are important information when choosing sunscreen, tested and announced by manufacturers. Meanwhile, with homemade sunscreen, how effective and how long it protects, has not been specifically evaluated.