New Mexico Cosmetology Practice Exam 2025 – All-in-One Guide to Mastering Your Certification!

Contact dermatitis is a skin condition characterized by inflammation and irritation due to direct contact with allergens or irritants. One of the most common causes in skincare practices is the presence of fragrances and preservatives in personal care products. These compounds can invoke an allergic reaction or irritation when they come into contact with the skin, particularly in individuals who are sensitive to specific ingredients.

Fragrances can range from natural plant extracts to synthetic chemicals, and while they are often added to enhance the product's scent, they can also disrupt the skin barrier or irritate sensitive skin. Preservatives, necessary for prolonging shelf life and preventing microbial growth, can similarly trigger allergic reactions or sensitivity in certain individuals. Therefore, when selecting skincare products, it's important to read labels and be mindful of potential allergens and irritants.

In contrast, while oily skin, excessive washing, and direct sunlight exposure can all lead to skin irritation or exacerbate existing conditions, they are not direct causes of contact dermatitis in the same way that specific allergens in products are. Understanding these distinctions can help prevent skin issues in those with sensitive skin types.