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Star Anise Seed Essential Oil
Tisserand and Young recommend a dermal maximum of 1.75%. They indicate that it may inhibit blood clotthing and that it is contraindicated in pregnancy/breastfeeding, endometriosis and estrogen-dependent cancers. Avoid use with children under 5. Avoid use of the oil if it has oxidized. [Robert Tisserand and Rodney Young, Essential Oil Safety (Second Edition. United Kingdom: Churchill Livingstone Elsevier, 2014), 197.] Tisserand and Young include additional information that is recommended reading.
The 15ml size comes with a euro dropper top and the 30 ml is a bulk bottle with a cone lined screw top.