The roots used to make Indigo Herbs Rehmannia Root Tincture undergo stringent checks to ensure they develop to their fullest potential, whilst adhering to exceptionally high quality standards. After careful selection and cleaning the plant matter undergoes a process of cold percolation in order to extract the active constituents into tincture form. The cold percolation method employs a gradient circulation of the solution which keeps the plant ingredients in perpetual contact with the ethanol. This technique is faster and more efficient than maceration and ensures there is less waste of precious plant materials. The roots used to make Rehmannia Root Tincture are fermented (prepared) in the traditional way.

This premium quality product is manufactured to GMP standards and Quality Assured by Indigo Herbs. It is 100% pure botanical ingredients, completely free of synthetic ingredients with absolutely nothing added.