Why does Benzyl Benzoate score a 6 on skin deep?

Why does Benzyl Benzoate score a 6 on skin deep?

It scores a 6 on skin deep, because they are not considering that it may be contained naturally within an ingredient in the formulation. Skin Deep does not consider additional text on pack and they consider the 26 fragrance allergens that we must put on pack as added ingredients-even though that is not the case.