Broad-Spectrum Coverage: Protecting your skin from the sun isn't just about sunscreen. Sun-protective clothing, like hats, sunglasses, and UV-blocking shirts, can be even more effective. It's a great idea to mix and match for the best protection!
2. SPF Application: Did you know that the SPF number on your sunscreen is based on applying 2ml per square cm of skin? That’s roughly one teaspoon for your face. So, if you’re applying a thin layer of SPF 50, you might actually be getting closer to SPF 20. Always apply generously and remember to reapply every two hours, especially after swimming or sweating. And remember, the main rule of any sunscreen is: Apply, Re-apply, and Re-apply.
3. Proper Application: When applying sunscreen, don't rub it in too much. Your skin has folds and textures that need full coverage. Ensure you cover every part of your face and body evenly for maximum protection.
4. Types of Sunscreen Filters: Sunscreens use different types of filters to protect against UV radiation. Physical filters like Zinc Oxide (ZnO) and Titanium Dioxide (TiO2) are generally recognized as safe (GRAS). Chemical filters, such as Avobenzone and Octinoxate, are often more effective and require less product for the same level of protection.
5. Systemic Absorption: Studies have shown that if you use the maximum amount of chemical UV filters (2ml per square cm of skin, for 75% of your body, four times a day), systemic absorption can exceed safe levels. To minimize this, you might choose to use sunscreen mainly on your face and cover your body with sun-protective clothing.
6. Absorption vs. Reflection: It's a common belief that mineral sunscreens work by reflecting UV rays. However, both organic and inorganic sunscreen particles primarily absorb UV radiation. Understanding this helps in choosing the right product for effective protection.
7. Unlisted Organic Filters: It's good to know that some sunscreens might contain chemical filters even if they are labeled as mineral-only. These chemical filters might not be officially registered as UV filters, so they aren’t listed on the product, but they still provide protection. Examples of not registered UV chemical filters: Ethylhexyl Methoxycrylene, Butyloctyl Salicylate.
8. Removing Sunscreen: Sunscreens are designed to be long-lasting and can be difficult to remove. It's essential to thoroughly cleanse your skin at the end of the day to prevent clogging pores and other skin issues. We recommend using Luksha Cosmetics' gentle and super effective oil-based cleanser, Cleansing Oil with Organic Clove Stem Oil and Vitamin E, to remove all traces of sunscreen and keep your skin healthy. Its also available in the Facial Cleansing Set, pairing with a Toner.
9. Environmental Impact: Concerns have been raised about the environmental impact of sunscreen ingredients, particularly on coral reefs. However, current data suggests that UV filters are not a major factor affecting coral health compared to climate change, agricultural pollution, over-fishing, and recreational activities. Still, it's good to be mindful of the products you use, especially if you spend a lot of time in the ocean.
By knowing these facts, you can make smarter choices about your sun protection routine and keep your skin healthy and safe from harmful UV rays.
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References:
1. Article: “Metal oxide sunscreens protect skin by absorption, not by reflection or scattering.” Curtis Cole, Thomas Shyr, Hao Ou-Yang, October 2015 Photodermatology Photoimmunology and Photomedicine.
2. Article: “Effect of Sunscreen Application on Plasma Concentration of Sunscreen Active Ingredients”. A randomized clinical trial. Murali K Matta, PhD, Jeffry Florian, PhD, Robbert Zusterzeet, MD, PhD, MPH. January 21, 2020
3. Burns&Davis (2021) Environmental Toxicology & Chemistry. 40(12):3441-3464.
4. Clinical and Experimental Dermatology. "A qualitative review of misinformation and conspiracy theories in skin cancer." Cathal O`Connor, Siobhan Raffery, Michelle Murphy.
5. U.S. Environmental Protection Agency
