Written by: Jasmine Biju
Sunscreen is imperative in protecting our skin against harmful ultraviolet (UV) rays from the sun. For this reason, it is crucial to integrate the application of sunscreen into your daily routine. Nowadays, stores are lined with innumerable amounts of all types of sunscreens, which may make it hard to choose the right one. There are two main types of sunscreens, each with a varying purpose: inorganic (non-carbon-containing) and organic (carbon-containing) sunscreens.*
A sunscreen product functions by using active agents to absorb, deflect and/or reflect UV radiation. These different methods of protection from solar radiation give distinction to the sunscreen products currently on the market. Inorganic sunscreens sunscreen, also known as mineral or physical sunscreen, works by creating a protective layer between the epidermis and incoming sunlight rays. By doing this, it absorbs, reflects, and scatters light through the usage of inorganic filters, like zinc oxide and titanium dioxide. Zinc oxide and titanium dioxide are the only two inorganic sunscreen filters currently approved by the Food and Drug Administration (FDA). Organic sunscreens work a little bit differently. While inorganic sunscreen primarily reflects and scatters UV light, organic sunscreen also absorbs UV radiation and converts it to heat. Organic sunscreen often utilizes active ingredients such as avobenzone, octinoxate, and oxybenzone.
Inorganic and organic sunscreen have distinct advantages and disadvantages, so it is one’s preference and priorities that determine what the right sunscreen is for them. Because inorganic sunscreen filters are not absorbed, inorganic sunscreens tend to be heavier and more apparent (often have a white-cast), though more recent products offer tints that help with the wearability of inorganic sunscreens for deeper skin complexions. It is often understood that inorganic sunscreens can be more friendly toward sensitive skin, as they rest on top of the skin. However, some may actually find inorganic sunscreens to be more irritating than organic sunscreens because of their heavy and thick nature. Organic sunscreens may be best for deeper skin tones and those who engage in vigorous, sweat-inducing activities. This is because as organic sunscreen is absorbed, it is more resistant to water. Although, the process of absorption into the skin is more gradual thus requiring more time to fully function. Both inorganic and organic sunscreens are successful in doing their purpose of protecting from solar radiation; therefore, it is your preference that constitutes which sunscreen is best fit for your skin type.
Choosing the right sunscreen is essential to ensure that it is comfortable while also executing its purpose of protecting the skin from the sun's harmful ultraviolet rays. If you are uncertain about the proper sunscreen for you, experiment with samples of different available sunscreen products and determine how your skin reacts to them. With trial and error, you will find the perfect sunscreen product for you.
*Note: It is critical to note that our usage of the terms “organic” and “inorganic” has nothing to do with the efficacy or “health” of certain sunscreens; it just addresses the chemical differences between the two types of sunscreen.
References:
“The difference between physical and chemical sunscreen.” Piedmont,
https://www.piedmont.org/living-better/the-difference-between-physical-and-chemical-sunscreen#:~:text=Chemical%20sunscreen%20absorbs%20into%20the,and%20reflects%20the%20sun's% 20rays.
“Should I use a Chemical or Physical Sunscreen.” Center for Surgical Dermatology & Dermatology Associates, https://www.centerforsurgicaldermatology.com/should-i-use-a-chemical-or-physical-sunscreen/
Timmons, J. “What’s the Difference Between Physical and Chemical Sunscreen?” Healthline, 2022, https://www.healthline.com/health/physical-vs-chemical-sunscreen
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