How can the use of oils affect skin that is prone to acne?

The use of oils on acne-prone skin can have varying effects, which is why the correct answer states that some oils can clog pores while others can be beneficial. Oils are classified based on their molecular weight and composition, which determines how they interact with the skin.

Certain oils, especially those with a heavier molecular structure or higher comedogenic ratings, can penetrate the pores and lead to blockages, contributing to acne formation. Examples include coconut oil and some mineral oils, which can promote breakouts in individuals who are already dealing with acne-prone skin.

Conversely, there are also oils that can help nourish and soothe the skin without exacerbating acne. Oils like argan oil or rosehip oil have non-comedogenic properties and can provide hydration while supporting the skin's barrier. They can help balance oil production and provide essential fatty acids that contribute to overall skin health.

This nuanced understanding of how different oils interact with the skin elucidates why not all oils are equal in their effects on acne, reinforcing the idea that careful selection of oils can make a positive difference for individuals with acne-prone skin.