A hydrating body lotion focuses primarily on increasing the water content of the skin, utilizing powerful humectants like hyaluronic acid, glycerin, and sodium lactate to draw moisture from the environment and bind it within the skin layers, providing a surge of hydration that plumps and deifies the skin; this type of lotion is often water-based and lightweight, suitable for all skin types seeking to prevent or alleviate dehydration, and its performance is measured through corneometry to quantify hydration levels and transepidermal water loss (TEWL) measurements to assess barrier function, making it a fundamental skincare product for consumers worldwide who need effective and straightforward hydration to maintain soft, supple, and healthy-looking skin in any environment.