Moisturizers are personal care formulations designed to hydrate, protect, and maintain the skin’s natural barrier. They typically contain a blend of water, emollients, humectants, and occlusives. Emollients such as oils and butters soften the skin, humectants like glycerin and hyaluronic acid attract water to maintain hydration, and occlusives such as petrolatum or silicones create a protective layer to prevent water loss. With a skin-friendly pH of around 5–7, moisturizers help restore the skin’s natural balance, reducing dryness, flakiness, and irritation. They come in different consistencies ranging from lightweight lotions that absorb quickly to rich creams for intense hydration. Many modern formulations are enhanced with vitamins, antioxidants, and SPF protection, offering additional benefits such as anti-aging and sun defense. They are available in various forms tailored for different skin types, including dry, oily, sensitive, or combination skin. Packaging ranges from jars and tubes to hygienic pump bottles. As essential daily skincare products, moisturizers play a critical role in both cosmetic beauty routines and medical dermatology. With rising consumer awareness, demand is shifting toward dermatologist-tested, hypoallergenic, and eco-friendly formulations. Globally, moisturizers remain one of the most widely used and trusted products in personal care, combining hydration, protection, and nourishment.