Proderm

Tolu balsam[1] or balsam of Tolu[2] is a balsam that originates from South America (Colombia, Peru, Venezuela). It is similar to (and frequently confounded with) the balsam of Peru. It is tapped from the living trunks of Myroxylon balsamum var. balsamum.[1] The fresh balsam of Tolu is a brownish, sticky, semifluid mass. It gradually becomes a brittle solid, but softens again when it is warm.[2] The balsam contains a fairly large ... [wikipedia]