Kosteuttimia

Kosteuttimia refer to substances used to moisturize by attracting or retaining water, a category commonly known as humectants or moisturizers in English. They are used across cosmetics, pharmaceuticals, and some food products to maintain hydration of skin, mucous membranes, or surfaces.

Most kosteuttimia are hygroscopic, meaning they attract water from surroundings and bind it within the outer layers of the skin or product matrix. Humectants can raise the water content of the stratum corneum, improving softness and elasticity. In cosmetic formulations, they are often paired with occlusive ingredients that reduce water loss to the environment to maintain longer-lasting hydration.

Common examples include glycerin, propylene glycol, sorbitol, urea, hyaluronic acid, sodium PCA, and trehalose. Natural or plant-derived humectants such as honey or aloe vera extracts are also used. The choice depends on desired texture, safety, and compatibility with other ingredients.

They appear in moisturizers (creams, lotions, serums), cleansers, shampoos and conditioners, and medicinal ointments. In food science, humectants help retain moisture, influence texture, and extend shelf life.

Most kosteuttimia are safe at recommended levels, but high concentrations can cause irritation or a sticky sensation, and some may interact with preservatives or alcohol in formulas. They may be avoided in very dry or sensitive skin types or in products intended for use under occlusion.

Related topics include humectants, moisturizers, occlusives, and cosmetic ingredient safety.