Which of the following is considered a physical sunscreen?

The chosen option, Zinc Oxide, is recognized as a physical sunscreen because it acts as a physical barrier on the skin's surface, reflecting and scattering UV radiation away from the skin. This mechanism provides immediate protection upon application, which is a characteristic feature of physical sunscreens.

Zinc Oxide is well-regarded for its broad-spectrum UV protection, meaning it can protect against both UVA and UVB rays. Additionally, it is often recommended for sensitive skin types as it tends to cause fewer adverse reactions compared to some chemical sunscreens. These properties make Zinc Oxide a popular choice in various sunscreen formulations, especially for those seeking natural or mineral-based options.

While Titanium Dioxide is also a physical sunscreen, it is not the focus here. Chemical filters, on the other hand, absorb UV radiation and convert it into heat, which is then released from the skin, while Retinol is a form of Vitamin A that is primarily used for its anti-aging properties and does not serve as a sunscreen.