It's probably similar to adding olive oil. Wikipedia lists the common ingredients as
The most common chemical compounds present in rose oil are:
citronellol, geraniol, nerol, linalool, phenyl ethyl alcohol, farnesol, stearoptene, Î±-pinene, Î²-pinene, Î±-terpinene, limonene, p-cymene, camphene, Î²-caryophyllene, neral, citronellyl acetate, geranyl acetate, neryl acetate, eugenol, methyl eugenol, rose oxide, Î±-damascenone, Î²-damascenone, benzaldehyde, benzyl alcohol, rhodinyl acetate and phenyl ethyl formate.
The first couple are lipids which may be the same pathway yeast use olive oil in their cell walls.