Aromatherapy and Essential Oils

Overview of Aromatherapy and Essential Oils

  • Aromatherapy involves the use of essential oils and is linked to the historical practice of herbal medicine.
  • Infusing herbs in oils has been a common way to preserve their properties for out-of-season use.

History and Significance of Oils

  • Traditional Use of Oils:
    • Oils were historically used to preserve herbs, often utilizing animal fats like tallow.
    • Plant materials were infused in rendered fats which helped retain flavors and therapeutic qualities.
    • Foods high in fats were prized in various cultures due to limited availability and flavor enhancement properties.

Difference Between Carrier and Essential Oils

  • Infused vs. Essential Oils:
    • Infused oils are created by putting whole herbs in a carrier oil, extracting volatile components.
    • Essential oils are distilled and pure oils derived from plants, using processes like steam distillation or carbon dioxide extraction.
    • Essential oils are concentrated and obtained from a larger quantity of plant material compared to infused oils.

Oil Yield Examples

  • Essential Oil Extraction Efficiency:
    • Lavender: 100 kg of plants yield approximately 900 grams to 2 kg of essential oil (1-2% yield).
    • Chamomile: 100 kg yields only about 40 to 50 ml; a significantly lower yield due to being less oily.

Pricing of Essential Oils

  • Cost Influence Factors:
    • Prices vary based on the amount of plant material required for extraction; some oils are very expensive due to low yield.
    • Some products sold might be diluted with carrier oils to make them more affordable.

Application and Safety of Essential Oils

  • Usage and Dilution Guidelines:
    • Essential oils should not be applied directly to the skin without dilution.
    • The general rule is to keep dilution under 5% for safety.
    • Essential oils, due to high potency, can cause skin irritations if not properly diluted.

Essential Oil Characteristics

  • Testing Purity:
    • A simple test: place a drop of essential oil on blotting paper; pure oil will evaporate completely without leaving residue.
    • Gas chromatography is a professional method to confirm purity, but home testing can provide initial indications.

Therapeutic Effects of Essential Oils

  • How They Work:
    • Essential oils can affect both physical and cognitive functions via inhalation or skin absorption.
    • They can positively influence emotions, learning, and stress management.

Safe Use of Essential Oils in Baths

  • Bath Oil Preparation:
    • When adding essential oils to baths, always dilute in a carrier oil first to prevent direct exposure of concentrated oil on the skin.
    • Avoid using neat essential oils in baths as they can float atop bathwater and may harm sensitive skin, especially in children.
    • A suggested mixing suggestion: dilute essential oils in a carrier oil (like almond oil) before adding to bathwater for safety and effectiveness.