Sunscreen part 3 - Physical vs. synthetic sunscreen – which is best for your skin (and the planet)

Sunscreen is one of the most important steps in your skincare routine – whether it’s sunny or cloudy. But did you know that not all sunscreens are created equal ? ​​There’s a crucial difference between physical (mineral-based) sunscreen and synthetic (chemical) sunscreen – both for your skin and the environment.

In this guide, we go over how the different filters work, what the research says about safety and effectiveness – and why physical sun protection is increasingly in demand by skin experts around the world.

What is the difference between physical and synthetic sunscreen?

Physical sunscreen (also called mineral filter)

Contains natural minerals such as zinc oxide and titanium dioxide . These act as small mirrors that sit on the skin's surface and reflect away UV rays .

🌿 Protects against both UVA and UVB

🌿 Starts working immediately

🌿 Recommended for sensitive skin, children and pregnant women

🌿 Proven to be safer for marine environments than many synthetic filters

👉 Here you will find our physical sunscreens .

Synthetic sunscreen (also called chemical filters)

Uses synthetic substances such as avobenzone, oxybenzone, octinoxate, octocrylene , etc. These absorb UV rays and convert them into harmless rays inside the skin.

🌿 Requires approximately 20 minutes before providing full protection

🌿 Often has a lighter consistency

🌿 May be skin irritant or hormone disruptor , especially with prolonged exposure

🌿 Some filters are banned in countries like Hawaii and Palau due to their impact on coral reefs

Research and safety: what do the experts say?

According to the Environmental Working Group (EWG) and several dermatological studies , zinc oxide is the safest broad-spectrum filter for both UVA and UVB protection. It is stable in sunlight, rarely causes reactions, and is biologically safe.

Chemical filters like oxybenzone, on the other hand, have been linked to endocrine disrupting effects and allergic reactions , and they have been found in the blood, breast milk, and urine after repeated use.

That's why many people today choose to switch to physical filters , especially if you have sensitive skin, children in the family or want to reduce your environmental impact.

Environmental impact – for those who bathe with a clear conscience

Physical sunscreens (especially those with non-nano zinc oxide ) are considered to be much gentler on marine ecosystems. They do not break down into harmful nanoparticles and do not have the same toxic impact on coral reefs as many synthetic filters.

Several popular tourist destinations have banned chemical sunscreens to protect coral and marine life – driving demand for environmentally friendly alternatives.

Summary – which sunscreen should you choose?

Tips when using sunscreen:

🌿 Apply liberally – with a physical sunscreen, the skin should be "covered"

🌿 Reapply every two hours, especially when swimming or sweating.

🌿 Use year-round – UVA rays pass through clouds and windows

Our choice: Sun protection with care

At Nordic Natural Beauty you will find carefully selected sunscreens that combine natural ingredients, high performance and sustainable packaging – such as:

👉 Sol de Ibiza – Zero Waste Sunscreen with non-nano zinc oxide
Suitable for all skin types, including children. Free from perfume, nanoparticles and synthetic substances.

👉 Eco by Sonya – Glory Veil Sunscreen SPF50
Broad coverage, water-resistant and rich in organic plant oils that nourish while protecting.

Do you want to find a sunscreen that is kind to both skin and the ocean ?
Discover our range here

Join our sun protection school:

👉 Sun protection part 1 – the key to radiant skin all year round

👉 Sun Protection Part 2 - The Difference Between UVA and UVB and Why Your Skin Needs Protection from Both

👉 Sunscreen part 3 - Physical vs. synthetic sunscreen – which is best for your skin (and the planet)

👉 Sun protection part 4 - choose sunscreen according to skin type