Sunscreen Comparison

It is the season when one dreads going out without applying sunscreen. Sunscreen, which protects the skin from the harmful effects of ultraviolet rays, is divided into two main types: chemical (organic) and mineral (inorganic).

These sunscreens work in different ways. Zinc oxide and titanium oxide, ingredients in mineral sunscreens, create a protective barrier on the skin's surface to physically block ultraviolet rays from penetrating. On the other hand, chemical sunscreens first absorb ultraviolet rays. Subsequently, a chemical reaction occurs to convert the UV rays into heat, which is then naturally dissipated within the skin.

There are also differences in their pros and cons. Mineral sunscreens cause less skin irritation, whereas organic sunscreens have the advantage of a refreshing feel and ease of application. EverydayHealth.com in the U.S. has summarized the differences between them.

In the case of organic sunscreen

Advantages = Organic sunscreens can be applied easily without smudging on the skin. Unlike mineral sunscreens, they do not leave white streaks on the skin. Furthermore, they receive statistically better ratings in consumer tests demonstrating how long they protect the skin from UV rays.

Disadvantages = It can cause allergic reactions in people with sensitive skin. It can worsen melasma, which causes blemishes on the face and neck, and rosacea, which causes redness or acne on the nose, cheeks, and forehead. The Environmental Working Group (EWG) recommends avoiding chemical sunscreens containing oxybenzone due to concerns that they can disrupt hormones and cause allergic skin reactions. According to a review published in the Journal of the American Academy of Dermatology in 2019, ingredients like oxybenzone can damage coral reefs in the ocean. For this reason, some tourist destinations, including Hawaii, have banned oxybenzone.

In the case of mineral sunscreen

Advantages = Titanium oxide and zinc oxide in mineral sunscreens are the only UV filter ingredients recognized by the U.S. Food and Drug Administration as generally safe and effective. Mineral sunscreens are recommended for those concerned about long-term exposure to chemical ingredients, such as children or people with sensitive skin. Furthermore, unlike chemical sunscreens that take 20 to 30 minutes to absorb into the skin, they provide immediate protection. Mineral sunscreens can be used even after applying makeup or other skincare products.

You must choose according to your skin type

It is advisable to choose the type that suits your skin condition by considering the differences between the two types of sunscreen. Lauren Flock, a dermatologist in Georgia, USA, compares mineral sunscreen to a home-cooked meal and chemical sunscreen to fast food. She explains that while mineral sunscreen takes longer to apply and requires more frequent application, it can be safe for long-term use.

In conclusion, applying sunscreen of any type is of utmost importance. This is because the health risks caused by UV exposure far outweigh the potential risks of absorbing UV-blocking chemicals. The U.S. Food and Drug Administration recommends using sunscreen with an SPF of 15 or higher and reapplying it at least every two hours.