Sunscreen isn’t optional in New Zealand. Our UV levels are some of the highest in the world, and protecting your skin daily is one of the simplest long-term health decisions you can make.
But if you’ve ever stood in the sunscreen aisle and flipped a bottle over, you’ve probably noticed something: the ingredient lists can feel… complicated.
So what’s the difference between a natural mineral sunscreen and a conventional “off-the-shelf” sunscreen? And does it actually matter?
Let’s break it down.
How Conventional Sunscreens Work
Most supermarket sunscreens use chemical UV filters such as oxybenzone, octinoxate, avobenzone or octocrylene. These ingredients absorb into the skin and convert UV radiation into heat, which is then released from the body.
For many people, these products work fine.
But chemical filters can sometimes:
- Irritate sensitive skin
- Cause stinging around eyes
- Contribute to skin dryness
- Raise concerns around reef safety and environmental impact
They also require stabilisers and preservatives to keep the formula shelf-stable, which adds to the ingredient list.
How Natural Mineral Sunscreen Works
Mineral sunscreen — particularly non-nano zinc oxide — works differently.
Instead of absorbing UV rays, zinc oxide sits on the surface of the skin and physically reflects both UVA and UVB radiation.
It’s a simple mechanism. No conversion. No absorption.
And because non-nano particles are larger, they remain on the skin’s surface rather than penetrating it.
For many families, that simplicity is the appeal.
Why More People Are Switching to Mineral Sunscreen
1. Better for Sensitive Skin
Mineral formulas are generally gentler and less likely to cause irritation or breakouts.
2. Supports the Skin Barrier
When combined with nourishing ingredients like tallow, beeswax and natural plant oils, mineral sunscreen can actually support hydration rather than strip it.
3. Fewer Ingredients
Natural balms often contain significantly fewer ingredients — each chosen for a clear purpose.
4. Reef-Safe Formulations
Certain chemical UV filters have been linked to coral reef damage. Mineral zinc-based formulas are widely considered reef-safe alternatives.
5. Transparent Protection
You can often see where you’ve applied a mineral sunscreen. That slight white cast? It’s visible proof of coverage — particularly helpful when applying to children.
But Is Mineral Sunscreen Effective?
Yes — when formulated properly and applied generously.
A zinc concentration of around 20–25% provides strong broad-spectrum protection. The key is applying enough and reapplying after swimming or heavy sweating — just like with any sunscreen.
Sun protection isn’t about fear. It’s about consistency.
Choosing What’s Right for You
At Mountain Fresh, we believe in informed choices.
Just as we talk about what’s in your water, it makes sense to think about what’s on your skin. Both are daily exposures. Both matter over time.
Natural sunscreen isn’t about being extreme or anti-science. It’s about simplicity. Fewer ingredients. Clear mechanisms. Thoughtful formulation.
Protection that works with your body.
Because when you’re at the beach, on the trail, or watching sport from the sidelines, the last thing you should be thinking about is what’s in your sunscreen.
You should just be enjoying the moment.
We're super stoked to be stocking Catchin' Rays natural sunscreen. If you want to match the switch, learn more or add to cart here.