Tolu balsam is originates from South America.
It is tapped from the living trunks of Myroxylon balsamum var. balsamum. The fresh balsam of Tolu is a brownish, sticky, semifluid mass. It gradually becomes a brittle solid, but softens again when it is warm. The balsam contains a fairly large amount of benzyl and cinnamyl esters of benzoic and cinnamic acid (benzyl benzoate, benzyl cinnamate)
It is also used as a natural remedy for skin rashes. It is a well known cause of contact dermatitis, a form of skin allergy.