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Ngải đắng hằng năm (Thanh hao - Artemisia annua)
Artemisia annua
Sweet wormwood, Qinghao
Camphor and artemisia ketone are main constituents.
Low dermal concentration recommended.
Avoid in pregnancy and breastfeeding.
The plant is famous for artemisinin, antimalarial (artemisinin does not steam-distill, it's in the leaves/extracts).
| Camphor | 15.0 – 35.0 % |
| Artemisia ketone | 5.0 – 15.0 % |
| 1,8-Cineole | 5.0 – 12.0 % |
Artemisia annua was identified by Tu Youyou (China, Nobel Medicine 2015) as containing artemisinin, an antimalarial that has saved millions of lives.
Cultivated in China and Asia.
Family Asteraceae.
Niche oil. Different safety profile from common wormwood.