Essential Oil Contraindications

Understanding contraindications is critical for safe aromatherapy practice.

General Contraindications

Avoid: rosemary (camphor CT), sage, hyssop, camphor, fennel. These contain compounds that may lower the seizure threshold.

Use with caution: rosemary, thyme, hyssop. Some stimulating oils may raise blood pressure.

Use with caution: ylang ylang, lavender, marjoram. These can lower blood pressure further.

Avoid: juniper berry, wintergreen. These may stress the kidneys.

Avoid prolonged use of phenol-rich oils: oregano, thyme (CT thymol), clove.

Avoid: fennel, star anise, clary sage. These contain compounds with estrogenic activity.

If you have any medical condition or take medication, consult a healthcare provider before using essential oils therapeutically.