Here's why:
* Occlusives: These ingredients form a protective barrier on the skin's surface, preventing water from evaporating. They essentially lock in moisture and help the skin retain hydration. Common occlusives include:
* Petrolatum (Vaseline): A highly effective and time-tested occlusive.
* Mineral oil: Another widely used and effective occlusive.
* Beeswax: A natural occlusive.
* Lanolin: An animal-derived occlusive with good emollient properties.
* Silicones (e.g., dimethicone): Provide a smooth, silky feel while also acting as occlusives.
* Shea Butter This is an ingredient that contains both occlusives and emollients.
While other ingredients like humectants (e.g., hyaluronic acid, glycerin) draw moisture into the skin and emollients (e.g., oils, butters) smooth and soften the skin, they are less effective at treating dry skin *without* a good occlusive to keep the moisture from escaping.
Therefore, when choosing a body lotion for dry skin, prioritize products with a high concentration of occlusive ingredients. Look for them listed near the top of the ingredient list.
Important Note: The best body lotion for you might also depend on the severity of your dry skin and your personal preferences. You may want to use a lotion that contains a mix of all three: humectants, emollients, and occlusives.