Vembala pattai or Alkanet Roots are available as raw Herbal. It is having a pigment called Alkanin in its roots which can be used to add colour to various food substance and hair oil. It can be used for the following purpose.

1. Give purple colour when soaked in Coconut Oil, which gives good hair colour.

2. Can also be used to add colour with food substance.

Disclaimer: Before taking any herbal as an intake, you are requested to consult with a Siddha or Ayurveda Doctor or any other Traditional Siddha Physician to avoid further health related problems. They will help you to understand the procedure, the effect of Herbals and foods to avoid if any, upon consuming the herbs.