The US Environmental Protection Agency (EPA) calls neem oil a
low toxicity substance.
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This means that it is considered safe to apply to the skin and hair, but users should not ingest
it.
Consuming large amounts could have potential side effects such as:
- Vomiting
- Liver damage
- Metabolic acidosis
- Encephalopathy (brain disease, disorder, or damage)
especially in children - so be sure to keep it out of their reach when not in use.
One thing to be aware of when using neem oil is its potent smell! The two most common descriptions are “garlic” and “sulphur”, so it’s certainly a strong mix and this should be considered before you give it a go.
Also, it has a waxy consistency and can be tricky to massage directly into the hair and skin. It’s recommended to mix neem oil with a carrier oil like coconut, jojoba, or almond oil to mask its scent and make it easier to apply.
Some people can be allergic to neem oil. Users should perform a patch test before using neem oil for the first time. Place some on a small area of skin (usually on your arm). If there is no adverse reaction - like swelling, itching, or redness - after 24 hours, it should be safe to use on other areas of the body.
You should always check with your GP before using neem oil if you are pregnant, breastfeeding, or trying to conceive.