Barefaced
by auria
Notes on change, skin, and the journey to your truest self.
by auria
Notes on change, skin, and the journey to your truest self.
It's a common misconception that sunscreen and sunblock are two distinct products with different mechanisms of action. This notion, often fueled by online reels and casual conversations, claims that "sunblock" physically blocks UV rays while "sunscreen" absorbs them. But is there any truth to it?
The truth is that the term "sunblock" is outdated and misleading. While it was used historically to refer to sunscreens, the Food and Drug Administration (FDA) now discourages its use because no sunscreen can completely block all UV rays. Instead, the term "sunscreen" is used to encompass all products designed to protect the skin from sun damage. Whether they contain mineral filters like zinc oxide and titanium dioxide or chemical filters, their primary purpose is to mitigate the harmful effects of UV radiation, not to entirely eliminate it.
Another persistent myth suggests that mineral sunscreens (containing zinc oxide and titanium dioxide) physically block UV rays, while chemical sunscreens convert UV rays into heat. However, this is an oversimplification.
While it's true that mineral filters work by both reflecting and absorbing UV rays, chemical filters don't simply turn UV rays into heat. They absorb the UV radiation and then release it as heat. On the other hand, zinc oxide and titanium dioxide also absorb UV rays, converting them to heat. The subtle difference in their mechanism of action should not overshadow the common fact that both filter types protect your skin against UV radiation and are considered safe for use.
With the rising trend of natural and organic products, many believe that natural sunscreens are a superior option. These products often boast formulations free of chemical filters, relying instead on plant-based ingredients and antioxidants to shield the skin. But do they live up to the hype?
The term "natural sunscreen" can be misleading. Even sunscreens marketed as natural often contain ingredients that are processed in labs. The key question isn't whether a sunscreen is "natural," but whether it's clinically tested, properly formulated, and compliant with safety regulations.
Many herbal or Ayurvedic sunscreens often claim to be natural but lack adequate testing and may not provide sufficient protection against UV radiation. Antioxidants like lemon and ginger found in some natural products may offer additional benefits but are not replacements for dedicated UV filters.
When choosing a sunscreen, prioritize products that have undergone rigorous clinical testing. Look for certifications that demonstrate the product's efficacy in protecting against UVA and UVB rays. Remember, sunscreen is something that you shouldn't take a chance with and it must protect your skin.
In an era of DIY beauty and homemade remedies, the allure of creating your own sunscreen might seem tempting. Recipes abound online, often involving mixing zinc oxide powder with oils and butters. However, this practice carries significant risks.
Creating effective sunscreen requires a specialized formulation process and precise measurements. Simply mixing ingredients at home can result in an uneven and unstable product that offers inadequate protection or even harms your skin.
DIY sunscreens often lack preservatives, making them prone to bacterial contamination. The concentration of zinc oxide may also be difficult to control, potentially leading to insufficient sun protection or skin irritation.
Instead of risking your skin with a DIY concoction, opt for commercially available sunscreens with proven effectiveness and proper certifications. Sunscreen should only go with formulas that have been tested for results, and have been proven to be effective.
One frequently voiced concern regarding sunscreens revolves around potential hormonal disruption. Certain chemical filters, like oxybenzone and homosalate, have been flagged as potential endocrine disruptors in animal studies.
While animal studies have raised concerns, the FDA maintains that these filters are safe for use. In human studies, the absorption rate of these filters is minimal, and the potential for hormonal disruption is considered very low.
As a precautionary measure, dermatologists often advise pregnant women and children under the age of 12 to avoid sunscreens containing oxybenzone. However, for the general population, the benefits of using sunscreen to protect against sun damage and skin cancer far outweigh the theoretical risks of hormonal disruption.
If you're still concerned, consider opting for mineral sunscreens containing zinc oxide and titanium dioxide. These filters are considered safer alternatives and are less likely to be absorbed into the skin.
A dangerous myth persists that people with darker skin tones don't need sunscreen. This is simply not true. While melanin provides some natural protection, it's not enough to prevent sun damage.
Melanin offers an SPF of approximately 5, which is far below the recommended SPF of 30 or higher. People with darker skin tones can still develop sunburn, skin cancer, and hyperpigmentation. Regular sunscreen use is crucial for protecting against these risks.
Darker skin tones are particularly prone to hyperpigmentation, which can be exacerbated by sun exposure. Using sunscreen can help prevent uneven skin tone, darkening around the mouth, or worsening of melasma.
The world of sunscreen can seem complex and confusing, but armed with accurate information, you can make informed choices to protect your skin. Remember, sunscreen and sunblock are essentially the same, and "natural" sunscreens are not necessarily superior. Avoid DIY sunscreens and prioritize clinically tested formulations. While concerns about hormonal disruption exist, the benefits of sunscreen far outweigh the risks for most people. And finally, regardless of your skin tone, sunscreen is a non-negotiable part of a healthy skincare routine.
Using a product with a higher SPF (50 or higher) can help you protect your skin from sunburns. Products containing a higher SPF are designed to be more effective. However, it has to be applied in proper quantities and reapplied every two to three hours.
Mineral sunscreens are considered to be safer because they are less likely to be absorbed into the skin. However, chemical sunscreens are also deemed safe when used as directed.
No, expired sunscreen may not provide adequate protection. The active ingredients can degrade over time, reducing their effectiveness.
"Broad-spectrum" means the sunscreen protects against both UVA and UVB rays. Both types of UV radiation contribute to skin damage and cancer.
The general recommendation is to use about one ounce (shot glass full) to cover your entire body. For the face, a nickel-sized amount is sufficient. Make sure to apply it to every area of your face and use regularly.
