A<unk>  is a topical formulation used in industrial applications and as a cosmetic to place a physical<unk>  between the skin and contaminants that may irritate the skin (contact dermatitis or occupational dermatitis). There are many other terms for<unk> s designed to protect skin from harmful substances, including skin protective<unk> s, pre-work<unk> s, antisolvent gels, protective ointments, and shielding lotions. Three classes of<unk> s are used: water repellent<unk> s, water-soluble<unk> s, and<unk> s designed for special applications.<unk> s may contain substances such as zinc oxide, talc or kaolin to layer over the skin. For hand care they are designed to protect against the harm from detergents and other irritants. The efficacy of<unk> s is controversial. They have not been demonstrated to be useful in preventing hand eczema. A 2018 Cochrane review concluded that the use of moisturizers alone or in combination with<unk> s may result in important protective effects for the prevention of Occupational Irritant Hand Dermatitis (OIHD). They are a poor substitute for protective clothing for workers. Gloves provide a greater protection than<unk> s. However they are reasonably effective for the protection of face against some airborne substances. Some evidence suggests that improper use of<unk>  could cause a harmful rather than a beneficial effect. Skin that has been moisturized by<unk>  may be more susceptible to irritation by sodium lauryl sulfate, which can permeate hydrated skin more easily because of its hydrophilia.<unk> s that contain petroleum jelly or certain oils may cause rubber or latex gloves to deteriorate.
Barrier cream
Topical medication
Sunscreen
Dermal adhesive
Topical steroid
Natural skin care
Whitfield's ointment
Insect repellent