Washington Master Esthetics Practice Exam

What is a characteristic of organic sunscreen chemicals?

1. They create a physical barrier

2. They are absorbed by the skin

3. They are ineffective on wet skin

4. They smell less than inorganic sunscreens

The correct answer is: They are absorbed by the skin

Organic sunscreen chemicals are characterized by their ability to be absorbed by the skin. These chemicals, often known as chemical or synthetic sunscreens, work by absorbing UV radiation and converting it into heat, which is then released from the skin. This absorption property is a key aspect of how they provide protection against harmful UV rays. In contrast, inorganic sunscreens typically utilize physical blockers such as zinc oxide or titanium dioxide to create a barrier on the skin that reflects UV rays. Because organic sunscreens have a different mechanism of action, they deeply penetrate the skin layers, leading to their distinctive feature of absorption. This quality also contributes to a lighter feel on the skin and less white cast compared to their inorganic counterparts. In terms of effectiveness, organic sunscreens can be formulated to work well even on wet skin, thus not being limited in that regard. The scent of organic sunscreens may vary depending on the formulation and added fragrances, but this characteristic is not definitive nor necessarily less than that of inorganic options.