The root, cut into pieces, is gently simmered in water for about twenty minutes, then filtered. This preparation, bitter and warming, was drunk warm, often as a course of several days, under the supervision of a traditional practitioner. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.
The root macerates for several weeks in high-proof alcohol, away from light, then is filtered. This concentrated form requires careful dosage and guidance from a trained herbalist. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.
The well-dried root is finely ground then incorporated into honey or warm water, according to traditional Korean uses. This form, more concentrated than a simple decoction, also calls for caution and professional advice. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.
Dried root of Angelica gigas can be found in certain herbal shops specializing in East Asian plants, or through traditional Korean medicine practitioners. The fresh plant remains rare in cultivation outside its native range.
The root is traditionally harvested in autumn, after two to three years of growth, once the aerial parts have withered.