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Yarrow (chamazulene CT)

Cỏ thi

Achillea millefolium

Common yarrow, Milfoil

Asteraceae · Phần trên mặt đất khi ra hoa · Aerial parts of flowering plant · Steam-distilled

Yarrow (chamazulene CT) (Achillea millefolium) — botanical illustration
Achillea millefolium

Safety

Drug interaction · Slight neurotoxicity · Blue color

Chamazulene 30-45 percent, gives the characteristic deep blue color. Anti-inflammatory activity.

Total thujone up to 2.9 percent, slight neurotoxicity. Recommended max 8.6 percent dermal, 241 mg oral.

Drug interactions via chamazulene CYP1A2, CYP3A4, CYP2D6 inhibition.

Use orally with caution alongside drugs metabolized by these enzymes.


Usage guidelines

Maximum dermal level
8.6 percent
Max daily oral
241 mg
Color
Deep blue (chamazulene)
Storage
Dark, sealed, refrigerated

Chemistry

Volatile constituents
Chamazulene30.0 – 45.0 %
Sabinene10.0 – 22.0 %
β-Pinene5.0 – 12.0 %
Terpinen-4-ol3.0 – 8.0 %
β-Caryophyllene3.0 – 8.0 %
α-Thujone1.0 – 3.0 %

Botanical source

Achillea millefolium grows throughout the northern hemisphere. Traditionally used as a wound-healing herb (the name 'Achillea' from the legendary Greek Achilles).

Main production: Eastern Europe (Hungary, Bulgaria), Germany.

Family Asteraceae.


Notes

Chamazulene-rich like German chamomile and blue tansy. The deep blue is visually striking but requires formulation consideration.

In cosmetics: used for anti-inflammatory skin products and sensitive skin creams.