How To Use doTERRA Cypress Essential Oil. doTERRA Cypress Essential Oil is useful for the healthy cardiovascular system, muscles and bones, respiratory system, and healthy skin. Cypress oil is also helpful in promoting emotional balance. It has monoterpenes, alcohols, esters, sesquiterpenes, and oxides. doTERRA Cypress is steam distilled from the leaf, and every bottle is tested to meet CPTG quality standards.