Essential Oil Aroma Blends - Aceite Esencial Aroma Combina Creation's line of Aroma Synergies are blends of pure essential oils, handcrafted, and carefully selected to result in a wide range of use. Please note that our Synergies are undiluted blends of our Pure Essential Oils. They are ideal for wear as pulse point type perfumes or for adding Aromatherapy to the bath or perhaps a few drops to scent a bar of glycerin soap from our selection of Soap Bases. Undiluted Synergies are ideal for use in the aroma lamp or diffuser, or to be diluted in a Creation carrier oil for bath or massage. The synergy oil blends are available in the 15ml (1/2 oz) size or 1 oz 30 ml size according to the blend.