What is moisturiser for face?

What is a Face Moisturizer?

A face moisturizer is a product typically available in the form of a lotion, cream emulsion, ointment, or balm, designed with emollients that assist in maintaining skin hydration. These moisturizers primarily provide moisture to the upper layers of the skin. Their primary function is to create a seal on the skin's surface, effectively trapping moisture and essential nutrients while also offering a barrier against environmental irritants.