It has been found (in animal and laboratory studies) that some essential oils that are used in incorrect doses or in too high concentrations contribute to the development of tumors and other harmful changes in the body. Some essential oils can even damage the skin, liver and other organs if used improperly. Essential oils are not safe to consume and can cause significant poisoning even if small amounts are ingested. Essential oils that are perfectly safe when used topically or in aromatherapy can be toxic when ingested.
Certain oils, such as wintergreen, can be deadly. For example, anise Pimpinella anisum (L.) When used in excessive doses (more than three drops, three times a day or with prolonged use for two or three weeks), anise has the potential to cause circulatory and nervous system disorders. Established research has shown that essential oils can be toxic to cats, whether taken internally, applied to the skin, or simply inhaled. Exposure can result in severe liver damage, liver failure, respiratory failure, seizures, and even death.
According to a study, some essential oils may be effective in reducing anxiety and fear regarding childbirth. Essential oils have a shelf life, but there are plenty of ways to ensure they stay potent and fresh. If you have traces of essential oils on your hands and you rub your eyes or scratch the inside of your ears, you could experience a serious adverse reaction. You should not use essential oils internally unless you have received advanced training and certification or are acting under the guidance of a trained professional.
The best essential oils depend on the symptoms you want to relieve or what fragrances you prefer. But thanks to a growing number of studies showing how they work, hospitals and clinics are increasingly using oils to relieve stress, pain and nausea, and even to prevent pressure ulcers. While there are some essential oils that should never be used during pregnancy, there are some that are considered safe to use during prenatal massages or through the diffuser method. Early research and traditional use suggest that helichrysum essential oil may have anti-inflammatory and antimicrobial qualities.
As of this writing, there is not enough evidence about essential oils to make a definitive list of safe and unsafe. During a home presentation, the “wellness advocate” praised fragrant oils as harmless natural remedies that can treat everything from minor skin irritations and mood swings to autism and cognitive impairment. Depending on how the essential oil is prepared, there could be toxicity from other ingredients; these preparations often contain other oils or alcohol. Since essential oils are generally not regulated, it can be difficult to know exactly what is in the essential oil bottle: what species of plant, what concentration of active ingredient, or if there are any contaminants.
There is not enough evidence on all essential oils as endocrine disruptors to make general statements, Dr. Placing drops of lavender oil on your pet's bed can help calm it down, or it can simply cause more stress.