Dang Gui Shao Yao San is a time-honored formula first recorded in Zhang Zhongjing's classical Chinese medical text 'Jin Gui Yao Lue' (Essentials from the Golden Cabinet, circa 220 CE). It combines six carefully balanced herbs — two primary blood-nourishing herbs and four supporting herbs that ease fluid metabolism and strengthen digestion. In Japan, it has been standardized as a licensed Kampo medicine (TJ-23) and remains one of the most widely prescribed herbal formulas for women's health.

The formula works on two main principles: nourishing and moving blood to relieve stagnation that causes pain and irregular cycles, and supporting the body's fluid regulation to reduce bloating and pelvic congestion. Modern research suggests the herbs collectively influence estrogen-related pathways, reduce inflammatory signaling, and may support brain circulation — which may explain the emerging interest in its cognitive benefits for older women.

In Japan, Kampo extract granules (TJ-23) are the most clinically studied and convenient form — dissolve in warm water. Traditional decoction offers the most complete spectrum of compounds but requires preparation time. Capsules and tablets are widely available in Chinese herbal medicine retail and offer convenience, though standardization varies significantly between brands.

• Menstrual cramps and pain
• Irregular or light periods
• PMS and premenstrual bloating
• Menopausal symptoms (hot flashes, mood)
• Endometriosis-related pain
• Anemia or blood deficiency (women)
• Mild cognitive decline in older women
• Pregnancy-related discomfort (under guidance)
• Pelvic congestion and fluid retention
• Fertility support (irregular cycles)

• Worsening of mild cognitive decline in postmenopausal women (emerging clinical evidence from Kampo research)
• Recurrence of menstrual pain with consistent long-term use

• Bone broth — Rich in collagen, minerals, and warming compounds that support blood nourishment — closely aligned with the blood-building purpose of this formula in traditional medicine.
• Dark leafy greens (spinach, kale) — High in iron and folate, supporting the same blood-building pathway that Dang Gui Shao Yao San targets, especially useful for women with light or irregular periods.
• Beets — Traditionally used across cultures to nourish blood and improve circulation; contain nitrates that support healthy blood flow to the pelvic region.
• Black sesame seeds — Used in Traditional Chinese Medicine as a blood and yin tonic; rich in iron, calcium, and healthy fats that complement the formula's nourishing actions.
• Liver (chicken or beef) — The most bioavailable natural source of heme iron and B12, directly supporting blood building and addressing the fatigue and paleness the formula targets.

• Mild digestive upset or loose stools (most common, especially initially)
• Nausea if taken on an empty stomach
• Skin sensitivity or mild rash (rare, usually with Dang Gui component)
• Increased menstrual flow in some women (due to blood-moving action)
• Caution in pregnancy — traditionally used in later pregnancy under supervision but avoid in first trimester without qualified TCM guidance
• Rare allergic reactions in individuals sensitive to plants in the Apiaceae (carrot) family

• Recommended daily: Kampo granules (TJ-23): 7.5 g per day in 2–3 divided doses, dissolved in warm water. Traditional decoction: 9–15 g of the raw formula boiled in water. Capsules/tablets: follow manufacturer standardization, typically 3–6 capsules per day equivalent.
• Best time of day: Traditionally taken before meals — morning and evening for twice-daily dosing, or morning, midday, and evening for three-times-daily dosing.
• With or without food: Best taken 30 minutes before meals on a relatively empty stomach to maximize absorption, but if digestive upset occurs, take with a small amount of warm food.
• Time to effect: Menstrual pain and cycle regularity: 1–3 menstrual cycles. Menopausal symptoms: 4–8 weeks. Cognitive support: 8–12 weeks or longer.
• How long to take it: For menstrual concerns, use consistently for a minimum of 3 full cycles before evaluating results. Long-term use (6–12 months) is common in clinical practice and has a good safety record. For cognitive support in older women, ongoing use under supervision is typical. Periodic reassessment every 3–6 months is recommended.