Oils are what they are in this set, cheap. They foam if added to cool mist humidifiers. Also a regular stock item at marshals, tjmaxx, and Homegoods for 9.99
These are fragrance oils…NOT essential oils 
Real essential oil ingredients are simply the essential oil
Ingredients listed for this product:
Aqua, Polysorbate 20, Fragrance, Sodium Benzoate.