Why is mineral sunscreen different from other sunscreens?

Mineral sunscreen, also known as physical sunscreen or mineral-based sunscreen, differs from other sunscreens in terms of its active ingredients and mode of action. The main difference lies in the types of UV filters used.

Here are the key characteristics that make mineral sunscreen unique:

Active Ingredients

Mineral sunscreens contain mineral-based ingredients, typically zinc oxide and titanium dioxide, which are their active UV filters. These minerals work by sitting on top of the skin and forming a physical barrier that reflects and scatters UV radiation away from the skin.

Broad-Spectrum Protection

Mineral sunscreens offer broad-spectrum protection, meaning they protect against both UVA and UVB rays. UVA rays contribute to skin ageing and can penetrate deeper into the skin, while UVB rays are responsible for sunburns. By blocking both types of rays, mineral sunscreens provide comprehensive sun protection.

Physical Barrier

Unlike chemical sunscreens, which absorb UV radiation and convert it into heat, mineral sunscreens create a physical barrier on the surface of the skin. This barrier reflects and disperses UV rays, reducing their penetration into the skin. The minerals essentially act as tiny mirrors that bounce the sun's rays away.

Immediate Protection

Mineral sunscreens provide immediate protection upon application. Once applied, the minerals form a protective layer on the skin, reflecting and blocking UV radiation right away. This is in contrast to some chemical sunscreens that require around 20 minutes to become effective after application.

Reduced Risk of Skin Sensitivity

Mineral sunscreens are generally considered less irritating to the skin compared to some chemical sunscreens. The physical barrier they create may be more suitable for individuals with sensitive skin, as they are less likely to cause allergic reactions or skin irritation.

Environmental Friendliness

Mineral sunscreens are often considered more environmentally friendly than some chemical sunscreens. The active ingredients, zinc oxide and titanium dioxide, are typically biodegradable and do not pose the same risks to marine ecosystems as some chemical UV filters found in other sunscreens.

It's important to note that mineral sunscreens can sometimes leave a slight white cast on the skin due to the nature of the minerals used. However, advancements in formulation have led to the development of micronised or nano-sized particles that are less visible and blend more seamlessly into the skin.

Ultimately, the choice between mineral sunscreen and other types of sunscreens depends on personal preference, skin type, and individual needs. Both mineral and chemical sunscreens have their advantages, and it's important to select a sunscreen that suits your skin and offers adequate protection against the sun's harmful UV rays.

Unsure of your skin's needs? Take our skin quiz to find your perfect skin match.