This Works ' in transit muscle therapy relieves muscle tension and headaches with an invigorating aromatherapy blend of marjoram, black pepper and clove. Packaged in a convenient roller ball, the formula delivers penetrating warmth to aches, pains and stiffness in areas that can be hard to target – like your back, shoulders and thighs – and relaxes your senses in times of physical discomfort. £36.00 per 100ML