A natural ester for topical application to the skin, hair, and/or nails comprising the esterification product of (1) an undecylenic acid derived from a natural source and (2) a vegetable-derived fatty alcohol, and a personal care product that contains this ester is provided. Also disclosed are methods of preparing a natural personal care composition comprising combining an ester and at least one personal care component, wherein the ester comprises the esterification product of (1) an undecylenic acid derived from a natural source and (2) a vegetable-derived fatty alcohol.
