Can I put essential oil straight onto my skin?
No – they should be diluted in a carrier oil first. Neat oil on skin can cause irritation or sensitisation, and lavender and tea tree are no exception despite what you may have read.
Are they safe to swallow?
These are not sold for internal use and should not be swallowed. If you have read otherwise, that advice is best ignored unless it comes from a qualified practitioner who knows your circumstances.
Can I use them during pregnancy?
Several oils are not recommended in pregnancy. Check with your midwife or GP before using any of them, and keep to a diffuser rather than the skin if in doubt.
Why is rose so much more expensive than lavender?
Yield. It takes an enormous quantity of petals to produce a small amount of rose oil, which is why it is usually sold as a 5% dilution. Lavender is comparatively easy to distil.