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Four Substances

四物湯 · sì wù tāng

The foundational TCM formula for nourishing blood. Often called the women's tonic.

What it's for

TCM's most-used base for what it calls blood deficiency: pale complexion, dry skin, irregular or scant periods, dizziness, and that washed-out feeling. The four herbs work as a balanced set, with prepared rehmannia and dong quai doing the heavy nourishing while white peony and chuanxiong keep blood moving so it doesn't pool. Most women's formulas in TCM are built from this base.

This formula is for you if…

  1. Dizzy and lightheaded

    especially around or after your period

  2. Periods are light, late, or skipped

    and you feel drained when they come

  3. Body feels tight and undernourished

    dry skin, brittle nails, muscle tension

Best fit if at least 2 of these sound like you. If only one does, a more focused formula might fit better.

You might also notice

  • Pale or dull complexion
  • Cramping in the lower belly around your period
  • Heart pounding from small effort
  • Restless sleep
  • Pale tongue

Not your match if…

  • You're losing a lot of blood right now
  • You feel bloated with poor appetite and loose stools
  • You have signs of heat in the blood like red rashes

What's in it

How to take it

Four Substances is sold ready-made as Four Substances for Women Teapills (四物丸).

Standard dose: 8 pills, 3 times a day.

We're working on a Field Guide–recommended source for this formula. In the meantime, look for Plum Flower brand at a TCM pharmacy or specialty retailer.

Talk to a qualified TCM practitioner before taking this regularly, especially if you're pregnant, breastfeeding, or take medication.

Safety

  • Designed for blood-deficiency patterns. It's not the right pick if you're actively bleeding heavily or if your periods are already heavy and clotted. Different patterns call for different formulas.
  • Not appropriate during pregnancy. Dong quai and chuanxiong are blood-movers traditionally avoided in pregnancy.
  • Prepared rehmannia is rich and can be hard on weak digestion. If you bloat easily, work with a practitioner on modifications.
  • Talk to a qualified TCM practitioner before using this regularly, especially if you're pregnant, breastfeeding, or take medication.

Interactions

  • Dong quai may interact with anticoagulants and increase bleeding risk. Talk to a clinician if you take blood thinners.