learn the science behind thriving in the sun THRIVE LAB

What is Waxhead’s PA Rating?

You may have noticed PA++++ on sunscreen labels lately and wondered why you don't see any plus signs on Waxhead labels. I'll get to that reason, but first let me explain PA Ratings in general.   PA...
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Is Octocrylene Safe?

Is Octocrylene Safe? No, not really. I wouldn't put it on my skin. Octocrylene is readily absorbed by skin and accumulate within the body. It absorbs UVB (top-surface) and some short UVA (deep-skin...
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What is PA rating for sunscreen?

As if sunscreen labels weren’t confusing enough, with SPF numbers, broad-spectrum labels and water-resistance minutes. PA++++ is a new rating showing up on sunscreen labels — and here’s what you ne...
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How does zinc oxide sunscreen work?

How does zinc oxide sunscreen work? On February 2019, the FDA recommend the GRASE (generally recognized as safe and effective) status on only two active ingredients for use in sunscreen: zinc oxide...
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Scalp Sunscreen: Keep your Head Protected

Scalp Sunscreen Maybe you’ve experienced a full day out in the sun without a hat and came home with a sore, sunburned scalp. Maybe you have thinning hair or are balding and every day your scalp is ...
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What does reef safe sunscreen mean?

What does reef safe sunscreen mean? We should start by explaining the terms “reef safe” and “reef friendly" are not regulated by the FDA, and their growing use is largely due to the sunscreen indus...
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Is zinc oxide good for lips?

Zinc Oxide for Lips It is important to wear daily sunscreen and we should always include our lips too. Check your lip balm ingredients, it might not be protecting you from UV rays. As you’re avoidi...
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Ingredient Spotlight: Coconut Oil

5 Ways to use Coconut Oil for Skin and Face 1. Moisturizer 2. Sunburn Relief 3. Sunscreen 4. Makeup Remover 5. Shave Cream Coconut oil has been a skin softener for 1000s of years. It is made from...
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Is zinc oxide sunscreen safe?

Is zinc oxide sunscreen safe? Non-irritating and easy on sensitive skin, zinc oxide has been used in skincare for 1000s of years. A skin protectant widely used in treating various forms of skin irr...
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What is zinc oxide sunscreen?

What is zinc oxide sunscreen? Zinc oxide sunscreen uses the mineral compound zinc oxide as an active ingredient. It sits atop of the skin where it absorbs and reflects UV rays, converts them into i...
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Reef Safe Sunscreen Ingredients to Avoid

Reef Safe Sunscreen Ingredients to Avoid The term "Reef Safe Sunscreen" is unregulated and often misleading. Many sunscreen manufacturers use the term in their marketing because the product doesn’t...
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Does zinc oxide sunscreen expire?

Zinc oxide sunscreen does not expire, because it contains the mineral zinc oxide - a solid inorganic substance. It will always be effective against UV rays.
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