1. UV and cigarette smoking will age your skin rapidly and effectively. Sunscreen up, people.

2. SPF is a virtually meaningless term that indicates ONLY how much UVB protection a product provides, it does not reflect UVA protection. SPF is simply a measure of how much more solar energy YOUR particular skin can handle with sunscreen vs without. It is NOT an indicator of how many more minutes/hours you can be out. The number reflects solar energy, not time. An SPF30 will protect your pasty ass longer during non-peak exposure times, and less during the hours of 10-2.

3. If you are using sunscreen with only physical blockers (zinc oxide and titanium dioxide), YOU NEED TO REAPPLY FREQUENTLY. Too many of y’all act like SPF50 means you can be outside for hours without reapplying. IT DOES NOT. The harsh reality of life in the sun means that if you’re pasty, or a child, you shouldn’t be spending loads of time in the sun, especially between the hours of 10 and 2. If you are gonna be in the sun, you should be wearing sunscreen AND protective clothing. You should also be reapplying that sunscreen very frequently. Yes, it’s inconvenient, but you know what else is really inconvenient? MELANOMA. Sunscreen! .

4. If you are pregnant or nursing, avoid all chemical sunscreens, as they enter the bloodstream and also show up in breast milk. Everyone else, if you can, avoid them until they figure out whether they have health effects once they’re in the bloodstream. If you must use them, avoid oxybenzone and avobenzone.

5. DO NOT USE POWDER SUNSCREENS. There is no particle size requirement for powder sunscreens, and if the size is too small, the particles will be absorbed by the lung tissue, and will cause health problems. Spray sunscreens are also bad for this same reason, except there is a particle size requirement, but no regulation.

6. Antioxidants can boost the SPF of physical blockers, and can also help repair damage induced by UVB exposure, so adding a layer of Mega Antioxidant Lotion or Serum, or City Skin Serum will help protect you.

7. Retinol is broken down by sunlight, so use your retinol-containing products at night.

8. Definitions: ‘Physical blockers’ are sunscreens that provide a physical barrier against UV. These are zinc oxide and titanium dioxide ONLY. They provide broad-spectrum protection against UVA/B. They are safe for children and reefs (as long as they aren’t in nanoparticles). ‘Chemical sunscreens’ are UV filters that protect from UV exposure by interacting with it in a chemical reaction. They are clear liquids, and are what is used in moisturizers, setting sprays, etc that say they have sunscreen added.

Okay, that’s all I can think of right now. Let’s be safe out there! #themoreyouknow

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