Dan Shen (Salvia miltiorrhiza)
Traditionally described as:
- Invigorates the Blood and Dispels Stasis
- Clears Heat and Soothes Irritability
- Cools the Blood
- Nourishes the Blood and Calms the Shen
It has been said that it 'turns old blood into new' and also that its effects are 'equal to that of Si Wu Tang' (although in practice its invigorating action is stronger than its nourishing).
It is also the one herb that Martin's teacher in Shanghai took every day and has remained a favourite of his ever since.