A traditional formula for nourishing and regulating blood

Angelic Four (Si Wu Tang) is one of the best-known traditional Chinese herbal formulas for nourishing and regulating the blood. First recorded in Tai Ping Hui Min He Ji Ju Fang (Imperial Grace Formulary of the Tai Ping Era, 1078–85), it has been used for centuries when the body feels depleted, dry, or out of balance, especially after menstruation, childbirth, illness, or long periods of strain. It remains a trusted formula for supporting recovery, restoring balance, and helping the body feel stronger over time.

When to use it

In Traditional Chinese Medicine, Angelic Four is used when the body does not have enough healthy blood to nourish the organs, skin, hair, and cycle properly. When this happens, energy can feel low, the complexion may look pale, and the menstrual cycle may become irregular or delayed. The body may also struggle to recover fully after blood loss or long-term depletion.

This formula is often chosen for menstrual support, recovery after childbirth, and times when the body needs gentle rebuilding. It suits those looking for steady support and a gradual return to balance, strength, and overall wellbeing.

Why it stands out

What makes Angelic Four so well loved is its balanced approach. It does not simply nourish the blood. Traditionally, it also helps keep the blood moving smoothly. This makes it especially useful when the body needs support without feeling too heavy or sluggish. For that reason, it has remained a cornerstone formula in Chinese herbal medicine and is still widely used today.

Research

Research on Angelic Four has highlighted its effects on blood nourishment, circulation, and recovery after depletion. Studies have also explored its relevance in menstrual pain, irregular cycles, postpartum recovery, endometriosis, and fertility support, helping explain why it remains such a cornerstone formula in women’s health. This gives Angelic Four added relevance today as a gentle but dependable option for rebuilding and balance.

Important to know

Avoid Angelic Four during pregnancy unless advised by a qualified practitioner. It may also not suit those with diarrhoea, weak digestion, severe acute blood loss, or patterns with excess heat.