1 x 450gm parrafin wax Paraffin wax is a mineral wax derived from petroleum [source: Cosmetics Info]. Unlike the wax used for depilatory procedures, which is viscous and sticky to bond to hair and skin, paraffin wax is a soft wax with a low melting point, which means that it melts at a temperature cool enough to safely immerse your skin. Paraffin wax is a common option in heat therapy treatments for people with arthritis or other rheumatic diseases -- the heat helps increase blood flow and relax the muscles, which can help relieve caused by arthritis, osteoarthritis and fibromyalgia