Reetha (Sapindus mukorossi)
What reetha is, how classical Indian texts describe it, what published studies show and where they fall short, how to use it safely, and which GraceYes products contain it.
Names
Reetha or Ritha (Hindi), known in English as soapnut; Arishtaka or Phenila ("the foaming one") in Sanskrit. The part used is the fruit shell.
Classical Indian view
Reetha has no API monograph. A 2022 review found 22 Sanskrit synonyms across six classical lexicons and records traditional use for washing hair and fine wool (JAIMS).
Key compounds
Triterpenoid saponins (sapindosides), which are natural surfactants.
What studies show
- A review describes soapnut saponins as natural cleansers for cosmetics (PubMed).
- Soapnut seed oil was antimicrobial and sped wound healing in rats (PubMed).
Limits
There are no human trials of reetha hair washes.
Safety
It stings the eyes. One case of allergy was reported in a worker handling the powder (PubMed).
GraceYes products that contain it
Reetha Powder, Hair Mask, Amla Reetha Shikakai Powder Combo, Amla Reetha Shikakai Hibiscus Powder Combo.
This page is for general information and is not medical advice. Studies are linked so you can read them yourself. Always patch-test a new product, and speak to a doctor about any skin or scalp condition.