What is a primary characteristic of non-comedogenic products?

Non-comedogenic products are specifically formulated to avoid blocking pores, which is the primary characteristic that distinguishes them. When products clog pores, they can lead to acne and other skin issues, so non-comedogenic formulations are particularly beneficial for individuals with acne-prone or oily skin. These products allow the skin to breathe and reduce the likelihood of breakouts.

The other characteristics mentioned, such as being waterproof, having a strong scent, or being suitable exclusively for dry skin, do not define non-comedogenic products. For instance, non-comedogenic products can come in various forms and textures that may or may not be waterproof. Similarly, they can vary in scent, and their formulation is not limited to certain skin types, thus broadening their usability across different skin needs.