This disclosure provides a composition containing: (i) at least one material having odor strength or olfactive character; and (ii) at least one fenchol. The at least one fenchol is selected from an alkylated fenchol, an isomeric, diastereomeric or enantiomeric alkylated fenchol, or mixtures thereof. The at least one fenchol is present in an amount effective to enhance odor strength or olfactive character of the composition. The composition can be a synergistic composition. This disclosure also provides a method of enhancing odor strength or olfactive character of a composition by adding at least one fenchol to at least one material having odor strength or olfactive character in an amount effective to enhance odor strength or olfactive character of the composition.