Dermol moisturising lotions is useful for dry skin conditions, such as eczema and dermatitis, which get worse when the skin is allowed to dry out. Used regularly, it can help restore the skins smoothness, softness and flexibility by replacing lost moisture and helping the skin retain moisture. This helps reduce scaling, redness and itching. Dermol 500 lotion contain four main ingredients liquid paraffin and isopropyl myristate, both of which have moisturising properties. Benzalkonium chloride and chlorhexidine hydrochloride, which are an antiseptics. Liquid paraffin and isopropyl myristate work by replacing lost water within the skin, and by forming a waterproof barrier over the skin surface. This prevents water within the skin from evaporating and keeps the underlying skin hydrated. Benzalkonium chloride and chlorhexidine hydrochloride have antiseptic properties that help to destroy bacteria on the surface of the skin, which may otherwise infect and aggravate dry skin conditions such as eczema.