For many centuries ago it was noticed that some herbs have a positive effect on the skin and hair, help fight age-related changes. They were used by Cleopatra, Nefertiti, Madame de Pompadour. In modern cosmetology are also widely used extracts of herbs, many facilities are part of the essential oils.
Aromatic oils have a biological action at three levels: molecular, psycho-emotional and at the level of the nervous system. A good example is the rose. This flower is most people associate with beauty, love, and sometimes with sadness. When a person inhales the aroma of roses, is he having multiple associations with the smell that simultaneously affects him both emotionally and physically, and the impact of this depends on his personal experience.
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