For every day in (and out of) the sun
Sun Care
If you're looking for a list of ALL sunscreen filters in the US and their properties, take a look here!
Does Sunscreen Kill Coral Reefs? The Real Story
Headlines blame sunscreen for coral reef destruction, but where does it actually rank among threats to marine ecosystems? Learn what science says about sunscreen and coral health.
US vs. International Sunscreen Filters: Why the Difference Matters
Explore why American sunscreens lag behind international formulations, the regulatory differences that created this gap, and the newer filters available abroad that offer superior protection.
Mineral Sunscreen Filters: Zinc Oxide and Titanium Dioxide Explained
Discover how zinc oxide and titanium dioxide protect your skin, their spectrum coverage, when to choose mineral sunscreens, and the truth about nano versus non-nano particles.
Understanding Sunscreen Filters: A Complete Guide
Learn how sunscreen filters protect your skin from UV damage, the differences between mineral and chemical filters, and why formulation matters more than individual ingredients.
It's Never Too Late to Start Using Sunscreen
Think you've already done too much sun damage for sunscreen to matter? The science shows that starting sun protection at any age provides real benefits for your skin health.
Seed Oils Are Not Sunscreen: A Dangerous Internet Myth
Claims that olive oil, coconut oil, or raspberry seed oil can replace sunscreen are spreading online. Here's why this myth is dangerous and what the research actually shows.
Tell a Story, Not Statistics: Making Sun Care Relatable
Discover why personal stories and visual examples are far more persuasive than statistics when talking about sun protection—and how to use storytelling to help skeptics understand.
The Right Amount of Sunscreen (Hint: It's Not Pea-Sized)
Think a pea-sized amount of sunscreen is enough? This common advice leaves your skin dangerously unprotected. Learn the correct amount you actually need for effective sun protection.
Why is Good Sunscreen So Expensive?
Ever wonder why premium sunscreens cost so much more than drugstore options? Discover what really drives sunscreen pricing—from R&D to testing—and how to find the right balance between experience and budget.
How to Talk to Someone Who Won't Use Sunscreen
Learn the five key principles for having productive conversations about sun protection with skeptics—without damaging your relationship or pushing them further away.
Do People with Dark Skin Need Sunscreen?
While people with dark skin have significantly lower skin cancer rates, sunscreen offers important benefits beyond cancer prevention including protection against hyperpigmentation, sunburn, and premature aging.
Does Sunscreen Disrupt Hormones? A Balanced Look at the Evidence
Headlines about sunscreen and hormone disruption can be alarming. Here we examine what the research actually shows, separate fact from fear, and provide practical guidance for those with concerns.
Do You Need Sunscreen Indoors? The Window Question
Should you wear sunscreen when you're inside all day? Learn the truth about UV exposure through windows, when indoor sun protection matters, and practical alternatives like UPF clothing.
How Often Should You Really Reapply Sunscreen?
Every two hours? After swimming? What about indoors? Get clear, practical guidance on sunscreen reapplication timing for different situations, plus tips for actually remembering to do it.
The Base Tan Myth: Why Tanning Doesn't Protect You
Many people deliberately tan before vacations believing it prevents sunburn. Learn why a base tan provides almost no protection and actually increases your skin cancer risk from the start.
Mineral vs. Chemical Sunscreen: Which is Actually Better?
The mineral vs. chemical sunscreen debate is more nuanced than marketing suggests. Learn which type works best for your skin, lifestyle, and concerns—and why formulation matters more than filter type.
Higher SPF = Less Reapplying? Why That's Not How It Works
Many people believe that higher SPF sunscreen lasts longer and needs less frequent reapplication. Learn why SPF measures protection intensity—not duration—and why reapplication schedules remain the same regardless of SPF number.
Do You Need Sunscreen on Cloudy or Cold Days?
Many people skip sun protection when skies are overcast or temperatures drop. Learn why UV radiation remains a concern regardless of clouds or cold, and how to protect yourself year-round.
Sunscreen and Vitamin D: What the Science Actually Says
Concerned that sunscreen blocks vitamin D production? Learn why this worry is largely overblown and discover safer, more reliable ways to maintain healthy vitamin D levels without risking sun damage.
Does Sunscreen Cause Cancer? Debunking the #1 Sun Care Myth
The claim that sunscreen causes cancer is one of the most persistent sun care myths. Learn why rising skin cancer rates have nothing to do with sunscreen use and everything to do with better detection and changing behaviors.
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About Carylyne
About Carylyne
Hi! I’m Carylyne Chan, an experienced underdog-to-top-dog startup executive and entrepreneur.
I’m an advisor and angel investor to early-stage, lean teams focused on creating and dominating their own categories. I’m a partner at BlockSpaceForce, advising and building category-defining infrastructure and product companies in web3.
I’m also currently building two new brands: A sun care brand called Good Instincts and a tea brand named Portman Tea.
Previously, I was CEO at CoinMarketCap, which was acquired in 2020. My previous artificial intelligence startup (AngelPad S’16) was acquired in 2018.