Essential oil: origin
Obtained either by distillation or by cold pressing, in the case of the pericarp of citrus fruits, essential oils are volatile, aromatic substances with a varied and complex composition. They are liposoluble and soluble in alcohol (some more than others).
From a practical point of view, due to this variable composition, they are substances that can be used in different sectors: food, cosmetics, perfumery, pharmacy, veterinary medicine, etc., since they have multiple properties and, therefore, countless applications.
Properties
We could also say that, very often, they tend to be anti-infectious, regenerating or else exert effects on the psycho-emotional state when inhaled, but, to be more precise, we must look at each one and get to know its specific properties.
By adding a few drops to our preparations, we contribute aroma, fragrance or increase their cosmetic and therapeutic power. In a diffuser, they make it possible to create different atmospheres: of relaxation, of optimism, of purification…
It is important that the essential oils we use be 100% pure and whole, botanically defined and, if possible, organic. Our supplier must guarantee that they have reviewed the composition through quality control, in order to rule out synthetic or contaminant molecules.
This is achieved through chromatographic tests that reveal the composition and make it possible to reject essential oils that do not present a naturally formed molecular composition.
Uses
It is important to decide what use we are going to give it, since its quality can be organic or natural, for industrial, cosmetic or food use.
They can be used alone or combined; pure or diluted in suitable carriers or bases, depending on the purpose of the preparation.
For example, in food or in natural cosmetics they are usually used as natural aromas, in addition to contributing other properties, depending on the essential oil. They are usually added to preparations, right at the end of the process, cold.
Due to their liposoluble nature, in order to incorporate them into water or completely aqueous preparations, they will require pre-mixing with a solubiliser.
Precautions
Their high concentration calls for caution in use. In general they are used in small doses, for example, from 0.2 to 2%, but it is essential to know each one well in order to determine the specific limitations or precautions for use.
Used incorrectly, they can cause irritation of the skin and mucous membranes, a risk of intoxication and hypersensitivity reactions (most contain allergens); for this reason, it is important to know them well and to assess them individually.
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