Ai Ye is the dried leaf of Artemisia argyi, a perennial herb native to China, Korea, and Japan that has been central to Traditional Chinese Medicine for over 2,000 years. It is classified as a warm, acrid herb that enters the Liver, Spleen, and Kidney meridians, making it a go-to remedy for cold and deficiency patterns — particularly those involving the uterus and digestive system. Beyond internal use as a tea or capsule, Ai Ye is the primary material used in moxibustion, where the compressed leaf (moxa) is burned near or on acupuncture points to deliver penetrating warmth.

Ai Ye warms the body's internal environment, helping to relax smooth muscle spasms (especially in the uterus and gut), improve local circulation, and reduce inflammation through its flavonoid and polyphenol content. Its volatile oils — particularly cineole, camphor, and borneol — have demonstrated anti-inflammatory and mild analgesic effects. When used as moxa, the infrared heat generated by burning mugwort penetrates deeply into tissue, stimulating circulation and nerve pathways at acupuncture points in ways that warm compresses alone do not replicate.

The most traditional internal form is a decoction (boiled tea), often combined with other herbs in classical TCM formulas like Ai Fu Nuan Gong Wan. Moxa sticks and cones are the external forms used in moxibustion — a practice performed by trained practitioners or, increasingly, with indirect moxa tools at home. Capsules and tablets standardized to flavonoid content are now available as a modern supplement form. Topical washes and foot soaks using Ai Ye tea are popular folk remedies for skin conditions and cold extremities.

• Menstrual cramps and period pain
• Irregular or absent periods
• Cold abdominal pain and bloating
• Digestive discomfort and gastritis
• Breech baby presentation (moxibustion)
• Chronic pain and joint stiffness
• Allergic skin conditions and eczema
• Poor circulation and cold extremities
• Anxiety and sleep disturbance (aromatherapy)

• Recurrence of cold-type menstrual cramping with consistent use during cycles
• Breech presentation complications when moxibustion is used proactively at 33–36 weeks gestation

• Ssuk (Korean mugwort) in rice cakes and soups — Fresh Artemisia princeps (Korean mugwort) is eaten directly as a culinary green in Korea, delivering the same flavonoids and mild volatile oils found in Ai Ye in a food-safe, low-thujone form.
• Yomogi mochi (Japanese mugwort rice cake) — Young mugwort leaves are blended into traditional Japanese sweets, providing flavonoids including eupatilin and chlorogenic acid in a gentle culinary dose.
• Mugwort tea (fresh or dried leaves, low dose) — A mild tea brewed from culinary-grade dried mugwort delivers the herb's antioxidant polyphenols and some volatile oils — the closest food-form equivalent to medicinal Ai Ye.

• Nausea or stomach upset at high internal doses
• Liver enzyme elevation with prolonged high-dose use
• Allergic reaction — especially in people allergic to ragweed, chrysanthemums, or other Asteraceae plants
• Skin irritation or mild burns from moxibustion if applied too closely
• Respiratory irritation from moxa smoke in enclosed spaces
• Uterine contractions — avoid internal use during pregnancy
• Thujone toxicity (neurological symptoms) with very high or chronic excessive doses of volatile oil

• Recommended daily: Dried herb decoction (internal): 3–9 g per day brewed as tea, as directed by a TCM practitioner. Capsule/tablet standardized extract: follow product label, typically 500–1000 mg per day. Moxibustion: performed by a trained practitioner or using indirect moxa tools at home, typically 10–15 minutes per acupuncture point per session.
• Best time of day: Internal decoction is traditionally taken warm, 2–3 times daily with or after meals. Moxibustion is typically performed in the morning or early afternoon for energizing effects, and in the evening for relaxation and sleep support.
• With or without food: Take internal forms with food to reduce the chance of stomach upset.
• Time to effect: Acute pain relief (moxibustion, menstrual cramps): 1–3 sessions. Digestive and menstrual cycle support: 2–4 weeks of consistent use.
• How long to take it: For menstrual support, use for 2–3 consecutive cycles then reassess. For digestive complaints, a 4–6 week course is typical. Avoid continuous high-dose internal use beyond 3 months without practitioner guidance due to the risk of cumulative thujone and liver stress. Moxibustion can be used as an ongoing maintenance practice with no strict duration limit at standard therapeutic doses.