Which of the following is a common ingredient in tanning lotions that provide skin benefits?

Hydrating agents are commonly included in tanning lotions because they help to maintain skin moisture and improve overall skin health. Staying hydrated is crucial, especially when using tanning products, as these can sometimes lead to dryness. Ingredients such as aloe vera, glycerin, or hyaluronic acid are often found in these formulations, as they not only aid in hydration but can also enhance the skin's suppleness and appearance. This makes them invaluable for clients seeking a healthy glow while also promoting skin care benefits.

In contrast, other options like alcohol are generally known to be drying or irritating to the skin, which can detract from the overall effects of a tanning lotion. Parabens are preservatives that some consumers prefer to avoid due to concerns about skin sensitivity and long-term health implications. Fragrances, while they may enhance the scent of a product, do not provide hydrating benefits and can sometimes lead to allergic reactions or skin irritation. Therefore, hydrating agents stand out as the beneficial ingredients in tanning lotions focused on enhancing skin quality alongside providing tanning results.