8.3 Aromatherapy & Advanced Therapies: Essential Oils, Phytotherapy, Algotherapy, Ayurveda & Cryotherapy
Key Takeaways
Most essential oils are produced by steam distillation, while citrus oils are usually cold-pressed (expressed).
Essential oils are diluted in a carrier oil before skin use, and cold-pressed bergamot, lemon, and lime oils can cause phototoxic reactions with UV exposure.
Phytotherapy uses plants and plant extracts, and algotherapy uses algae and seaweed; seawater-based treatments are called thalassotherapy.
Ayurveda describes three doshas: vata (air and space), pitta (fire and water), and kapha (earth and water).
Cryotherapy uses cold to constrict vessels and calm inflammation; the FDA has not cleared whole-body cryotherapy chambers to treat any medical condition.
What the Outline Expects
The Advanced Practice outline lists two related items. In Scientific Concepts: "recognize and understand concepts in advanced therapies (e.g., cryogenic, ayurveda, phytotherapy, algotherapy)." In services: "apply knowledge of aromatherapy treatment," meaning the purpose and effect of products such as essential oils and botanicals, and their competent use. WAC 308-20-080(6)(g) also includes "advanced theories; alternative, touch, and spa body treatments" in the Washington master esthetics curriculum.
Aromatherapy Basics
Aromatherapy uses essential oils, which are concentrated, volatile aromatic compounds extracted from plants, to affect mood and the skin. Oils act through inhalation (the sense of smell connects to the brain's limbic system) and through topical application in massage, compresses, masks, and baths.
| Extraction method | How it works | Typical oils |
|---|---|---|
| Steam distillation | Steam carries volatile oils from plant material, then condenses | Lavender, peppermint, eucalyptus, tea tree (the most common method) |
| Cold pressing (expression) | Peels are pressed mechanically | Citrus oils: bergamot, lemon, orange, lime |
| Solvent extraction | Solvents pull oils from delicate flowers, producing "absolutes" | Jasmine, some rose |
| CO2 extraction | Pressurized carbon dioxide acts as the solvent | Many modern specialty oils |
Aromatherapists describe blends by notes: top notes evaporate fastest (citrus, peppermint), middle notes give the body of a blend (lavender, geranium), and base notes last longest (sandalwood, patchouli, vetiver).
Common Oils and Their Traditional Uses
| Oil | Traditional esthetic use | Caution |
|---|---|---|
| Lavender | Calming, balancing | Possible sensitizer for some clients |
| Tea tree | Antimicrobial for oily or blemished skin | Can irritate when undiluted |
| German chamomile | Soothing; contains azulene | Ragweed-family allergy |
| Peppermint | Cooling, stimulating | Keep away from the eyes and mucous membranes |
| Eucalyptus | Opens the airways; decongesting | Avoid near infants' faces |
| Rosemary | Stimulating, invigorating | Caution with epilepsy and high blood pressure |
| Geranium | Balancing for combination skin | Patch test |
| Rose | Hydrating and comforting for dry or mature skin | Patch test |
Safe Use
- Dilute essential oils in a carrier oil (such as sweet almond, grapeseed, or jojoba) before applying them to skin. Low dilutions, about 1% to 2%, are common for facial use; follow the product's directions.
- Patch test new oils, and ask about allergies, asthma, epilepsy, and pregnancy.
- Phototoxicity: cold-pressed bergamot (from compounds such as bergapten), lemon, and lime can cause burns and dark patches when the skin is exposed to UV. Do not use them before sun exposure, and choose bergapten-free versions when available.
- Pregnancy: many oils are avoided in pregnancy; get medical guidance.
- Storage: keep oils in tightly closed dark glass bottles, away from heat and light, which degrade them.
- Label and dispense correctly: WAC 308-20-110 requires containers to be labeled with their contents and products to be dispensed without contaminating the supply.
Phytotherapy
Phytotherapy is the use of plants and plant extracts for their therapeutic benefits. Common esthetic botanicals include aloe vera (soothing and hydrating), green tea (antioxidant), calendula (soothing), witch hazel (astringent), licorice root (brightening), and arnica (traditionally used for bruising). "Natural" does not mean non-allergenic, so screen for plant allergies.
Algotherapy and Thalassotherapy
- Algotherapy uses algae and seaweed (kelp, bladderwrack, spirulina, and other marine algae) in masks, wraps, and baths for their minerals, vitamins, and moisture-binding sugars.
- Thalassotherapy uses seawater, marine mud, and the seaside environment.
- Seaweed can contain iodine, so screen for iodine or shellfish sensitivity and thyroid conditions (section 8.2).
Ayurveda
Ayurveda is a traditional system of medicine from India that seeks balance among three doshas (mind-body types):
| Dosha | Elements | Typical skin description |
|---|---|---|
| Vata | Air and space | Dry, thin, cool; ages early |
| Pitta | Fire and water | Warm, sensitive, prone to redness |
| Kapha | Earth and water | Thick, oily, smooth; congestion |
Ayurvedic spa treatments include abhyanga (warm oil massage) and shirodhara (a steady stream of warm oil poured over the forehead). A spa may offer them for relaxation; an esthetician does not use ayurvedic concepts to diagnose disease.
Cryotherapy and Cryogenic Treatments
Cryotherapy uses cold to cause vasoconstriction, reduce swelling and inflammation, and temporarily tighten the look of the skin.
- Cryo-facials and cold globes or wands: localized cold applied in continuous motion to calm redness and puffiness.
- Whole-body cryotherapy: standing in a chamber of very cold air for a few minutes. The FDA has warned that it has not cleared or approved these chambers to treat any medical condition, and that they carry risks including frostbite, burns, and oxygen deprivation.
- Medical cold procedures: cryolipolysis (FDA-cleared fat reduction devices) and cryosurgery with liquid nitrogen are medical procedures, not esthetic services.
Cold contraindications: cold urticaria (hives from cold), Raynaud's phenomenon, poor circulation, and reduced sensation. Never leave ice or very cold tools in one spot.
Choosing Holistic Services Responsibly
Holistic therapies can improve relaxation and comfort. Present them honestly: give their traditional purpose, avoid medical claims, and refer any medical concern to a physician.
Tip
Fast recall: steam distillation for most oils, cold pressing for citrus; bergamot means phototoxicity; vata, pitta, and kapha are the doshas; algae and seaweed are algotherapy.
Which essential oil is best known for causing phototoxic reactions when skin is exposed to UV after application?
Sandalwood
Steam-distilled lavender
Steam-distilled tea tree
Cold-pressed bergamot
In ayurveda, which dosha is associated with the elements of fire and water?
Kapha
Vata
Pitta
Prana
What does algotherapy use?
Electrical current through the follicle
Warm oil poured over the forehead
Algae and seaweed products
Cold air chambers
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