Arizona Esthetics State Board Practice Exam

Which ingredient would be most beneficial for oily skin types?

1. Glycerin

2. Hyaluronic acid

3. Tea tree oil

4. Shea butter

The correct answer is: Tea tree oil

Tea tree oil is particularly beneficial for oily skin types due to its natural antibacterial and anti-inflammatory properties. Oily skin often presents with excess sebum production, which can lead to clogged pores and breakouts. Tea tree oil helps to regulate oil production while also fighting acne-causing bacteria, making it a popular choice in skincare for those struggling with oily or acne-prone skin. Its natural astringent qualities contribute to reducing the appearance of pores and managing shine. In contrast, glycerin, while a good humectant, tends to be more suitable for dry skin as it attracts moisture, which can exacerbate oiliness. Hyaluronic acid is also a humectant, effective at drawing moisture into the skin, but it may not be as targeted toward the specific concerns of oily skin as tea tree oil. Shea butter, being rich and emollient, is often too heavy for oily skin as it can clog pores and lead to further breakouts. Therefore, tea tree oil stands out as the most beneficial ingredient for addressing the unique needs of oily skin.