Which ingredients are commonly found in moisturizing products?

Moisturizing products are designed to hydrate and retain moisture in the skin, and the most effective ingredients commonly utilized for these purposes include glycerin, hyaluronic acid, and various oils.

Glycerin is a well-known humectant, meaning it attracts water from the environment and helps to keep the skin hydrated. Hyaluronic acid is another powerful humectant that can hold a significant amount of water, making it particularly beneficial for maintaining skin hydration and plumpness. Additionally, oils, such as jojoba oil or argan oil, not only help seal in moisture but also provide nourishment to the skin, preventing dryness and improving the overall texture.

Other options listed, while they may contain ingredients that play various roles in skincare, do not focus primarily on moisture retention as effectively as the ingredients mentioned in the correct answer. Thus, the combination of glycerin, hyaluronic acid, and oils represents a core formula for effective moisturization in skincare products.