Which substance is commonly used in skincare products for its moisture-retaining properties?

The substance commonly used in skincare products for its moisture-retaining properties is glycerin. Glycerin is a humectant, meaning it has the ability to attract and retain moisture from the environment and the skin itself. This characteristic makes it a popular ingredient in many skincare formulations, as it helps to hydrate the skin, improve its elasticity, and enhance its overall appearance.

In skincare, glycerin works by drawing water into the outer layer of the skin, which helps to prevent dryness and maintain a healthy, plump look. It is also well-tolerated by most skin types, making it suitable for sensitive skin as well. Its versatility and effectiveness in pulling moisture into the skin contribute significantly to its frequent use in moisturizers, serums, and other hydrating products.

While other substances like collagen and hyaluronic acid are also known for their benefits in skincare, glycerin stands out for its established role as an effective humectant. Collagen primarily helps with skin structure and elasticity, while hyaluronic acid is known for its ability to hold many times its weight in water. However, glycerin is more commonly found in various formulations for its straightforward moisture-retaining capabilities. Alcohol, on the other hand, tends to have a drying effect, which