Interestingly enough certain foods can have the same stimulating effect on the uterus; this includes but is not limited to celery, carrots, parsley, basil, bay leaves, marjoram and safflower oil - who would have guessed?! I'm scared!
That said, two or three drops of the following essential oils are thought to be safe during pregnancy:
- Tea tree
- Temple orange
Essential oils in bold are used in some of my DIY Hair Care recipes.
Unfortunately, my source book does not advise whether these two or three drops can be a mixture of several oils, so I can neither confirm nor deny whether you can combine the oils and which combinations are safe. To be on the safe side I would just use 3 drops in 30ml (or grams) of carrier oil. No more. That would be roughly a 0.5% dilution.
The effects of essential oils can also be passed on from mother to infant so be cautious with your use of essential oils whilst you are breastfeeding. Basically, don't be a hero baby girl, consult a doctor or other medical specialist if you want to use essential oils! Alternatively, just use fragrance oils.
You might also like:
Neno Natural's DIY Hair Recipes
Ref: The Aromatherapy Encyclopedia by Carol Schiller & David Schiller