Hey, it’s Christine.

In today’s issue:

• What is the sunscreen debate

• Why sunscreen matters

• Potentially dangerous sunscreen ingredients

• Healthier alternatives

• Suprising stats about sunscreen

• Exclusive 20% OFF code from our sponsor Obvita Organics for newsletter subscribers only featuring organic sunscreen and a miraculous sunburn healing ointment

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PILLAR SPOTLIGHT

Beyond SPF: A Holistic Look at Sunscreen Safety

Okay, glow seekers—let’s talk about summer’s most controversial skincare product: sunscreen.

We all want to protect our skin from burns, wrinkles, and sun damage—but the sunscreen aisle is more complicated than it seems. Are the ingredients inside truly safe for daily use? And do we need better sun strategies than simply slathering and hoping for the best?

This week, we’re decoding the sunscreen debate—so you can make choices that reflect both your glow and your values.

🧴 Why Sunscreen Matters

There’s no denying the sun’s power:

• It fuels vitamin D production, balances mood, and supports immunity

• But too much exposure can accelerate aging, suppress skin defenses, and increase some cancer risks

Sunscreen helps by shielding us from:

• UVB rays, which burn the surface

• UVA rays, which penetrate deeper and contribute to aging and some cancers

That’s why conventional dermatology promotes daily, year-round sunscreen use, often with reapplication every two hours.

⚠️ What’s in Your SPF?

Most mainstream sunscreens rely on chemical UV filters such as:

• Oxybenzone

• Avobenzone

• Octinoxate

• Homosalate

• Octocrylene

These work by absorbing UV light and converting it to heat—but they may not stay only on the surface.

Studies show:

• These filters are absorbed into the bloodstream, even after one application

• Ingredients like oxybenzone have been found in urine, plasma, and breast milk

• Some filters may act as endocrine disruptors, mimicking hormones in lab and animal studies

• Others can break down in sunlight, potentially forming free radicals

• Several are banned in Hawaii due to reef toxicity

Importantly, the FDA has not recognized these chemical filters as Generally Recognized As Safe and Effective (“GRASE”). Only zinc oxide and titanium dioxide have earned that label.

🌿 What We Recommend Instead

For those seeking a safer route, we suggest avoiding sunscreens that list chemical filters like oxybenzone, avobenzone, and octinoxate on the label.

Instead, look for:

• Non-nano zinc oxide formulas

• Mineral-based sunscreens that sit on top of the skin, reflecting rays without absorption

• Fragrance-free and reef-safe options with clean ingredient panels

• Tints if you want extra protection without a white cast

Modern mineral SPF formulas are more wearable than ever—and many double as makeup primers or skin-calming moisturizers.

🧠 Why the Debate Still Exists

Mainstream experts point out:

• Just because a chemical is in the blood doesn’t mean it causes harm

• Animal and lab studies don’t always translate to humans

• The risk of sun damage is immediate and proven, while chemical harm is theoretical

Holistic experts ask:

• Why should we wait for proof of harm when we lack proof of safety?

• If an ingredient enters circulation, could it affect hormones, development, or fertility long-term?

• Shouldn't we hold daily-use products—especially those used on children—to higher safety standards?

In short, the debate comes down to precaution vs. permission. We lean into caution. Could these ingredients in sunscreen might be the next tobacco, lead paint, asbestos, DDT, Vioxx, or BPA? With safer alternatives, why not err on the side of caution?

🧘 A Balanced Approach to Sunlight

Rather than fear the sun—or bathe in it without limits—consider these gentle principles:

Gradual, unprotected exposure
Allow 10–15 minutes of direct sun on bare skin (longer if your skin is darker) to support vitamin D and mood regulation. Then, cover up or seek shade. Never burn.

Embrace physical barriers
Use wide-brimmed hats, lightweight clothing, umbrellas, and natural shade when out for long periods.

Choose safer SPF
Apply mineral sunscreen to exposed areas when sun avoidance isn’t possible—especially on the face, shoulders, and hands.

Feed your skin
Support resilience with antioxidant-rich foods like berries, leafy greens, and olive oil. Limit inflammatory oils like canola or soybean.

Sunlight is a gift. Sunscreen is a tool. The real power lies in making informed, intentional choices.

When you choose formulas aligned with your health values—and respect your body’s rhythms with the sun—you protect more than just your skin. You protect your glow.

Sources available upon request.

GLOW TIP

How To Apply Mineral Sunscreen

Apply mineral sunscreen as your final skincare step, after moisturizer. This helps it sit on the surface where it belongs, like a shield, which supports a non-absorbing, skin-safe barrier.

SURPRISING STATS

QUOTE OF THE DAY

The information in Glow by Calla Skin is for educational purposes only and is not medical advice. Christine is a licensed spa professional in Florida and New York State, not a doctor. Always consult a healthcare professional before making health-related decisions.