This is an aromatherapy product which contains essential oils at a therapeutic strength - it smells lovely, and has no side affects. Sweet Orange to make it smell good, basil, black pepper and ginger to warm up the the area and muscles. Also Clary sage which is a strong muscle relaxant. I developed it to help my granny with her restless legs and arthritis and rheumatism. It's been a best seller for over 20 years now and really makes a difference. If you need to apply to a hard to reach area I recommend the Cream. I use the Oil and apply it to the area that needs it before I shower or have a bath- the combination of adding heat to it makes it even more powerful. Most recently this wonderfully warming cream has gone viral amongst sufferers of Fibromyalgia, Sciatica and Arthritis! Don't hesitate to ask if you have anymore questions! xxx