Fragrances, both synthetic and natural, can cause issues for any skin type but they can cause extreme problems if you are prone to skin allergies.
Thats why at Finca Skin Organics, we only use natural, non-irritating ingredients, in all of our products, with the one notable exception of the Calming Serum 2.
In the Calming Serum 2, we do use some essential oils which possess their own particular natural fragrance.