Contrary to other analgesics sold on the market today, Sombra contains no waxes, oils, artificial colors, or other chemicals. Sombra carefully selects botanical extracts and other natural ingredients for the safest result. Sombra is fast-acting and begins to work immediately once it is massaged onto affected areas. For years Sombra has provided temporary relief of pain associated with simple backaches, arthritis, strains, bruises and sprains with its unique heating and cooling ingredients. For centuries the Indian tribes of northern Mexico have been using plant extracts to relieve pain. With that knowledge and modern science, Sombra developed a unique formula by blending those plant extracts with safe active ingredients. The result is Sombra an elegant gel that provides temporary relief to minor aches and pains.