Last verified: April 2026
Manjistha — Manjistha
Manjistha's name is its identity. The root is a deep, brilliant red — and in classical Ayurvedic pharmacology, the red colour indicates the herb's primary affinity: the Rakta Dhatu (blood tissue) and the Raktavaha Srotas (blood channels). Charaka Samhita documents Manjistha as the most important single herb for purifying and improving the quality of blood — acting on conditions that arise when blood is impure, overheated with Pitta, or burdened with accumulated Kapha.
The red root that purifies the red tissue. Classical Ayurvedic pharmacology recognised an important principle in colour correspondence — not as an absolute rule, but as one indicator among several. Manjistha's deep red root indicates its strong affinity for Rakta Dhatu (blood) and its documented action as a Raktashodhaka (blood purifier). The classical texts document that when blood is impure — heated by Pitta, burdened with Ama, or obstructed in the Raktavaha Srotas — conditions of the skin, joints, and reproductive system follow. Manjistha is the primary herb documented for addressing the Rakta Dhatu as the root of these conditions.
Sushruta Samhita's surgical tradition documents Manjistha prominently in wound healing and Kushtha (skin condition) preparations — an application that makes pharmacological sense given its antimicrobial, anti-inflammatory, and blood-purifying properties. Charaka Samhita emphasises its internal blood purification action. Ashtanga Hridayam documents its gynaecological applications — specifically for conditions where impurity of the Rakta Dhatu affects the female reproductive system (Artavavaha Srotas).
The natural dye application — Manjistha root produces a red dye used in traditional Indian textiles — is documented in classical texts alongside its medicinal properties. The classical tradition made no sharp distinction between the cosmetic-textile and medicinal applications of the plant: Varnya (improving skin colour and complexion) is listed as both a classical medicinal Prabhava and the basis for its use in Lepa (topical) preparations for skin brightening.
Classical pharmacological profile
Rasa: Four tastes — Madhura (sweet), Tikta (bitter), Kashaya (astringent), and Katu (pungent). The four-taste profile explains the broad Dosha action: bitter and astringent reduce Pitta and Kapha; pungent adds Agni-stimulating and Vata-moving dimension; sweet provides the nourishing action on the blood itself. This combination makes Manjistha simultaneously a purifying and blood-building herb in the classical system.
Virya: Ushna (hot). The hot potency activates the blood-moving and channel-clearing action — consistent with the classical understanding that impure, stagnant blood requires a warming, moving stimulus to be cleared.
Vipaka: Katu (pungent). The pungent post-digestive effect means Manjistha's long-term metabolic action is stimulating and drying rather than nourishing — which is why classical texts typically prescribe it in compound formulations with nourishing herbs rather than as a standalone long-term protocol.
Prabhava: Raktashodhaka (blood purification) and Varnya (skin brightening) — the two documented special actions that define Manjistha's clinical identity.
Ayurvedic Pharmacopoeia of India monograph
API Volume I, Part I, Monograph No. 1.1.33 specifies: root of Rubia cordifolia L., Family Rubiaceae; total ash: not more than 9%; acid-insoluble ash: not more than 2%; alcohol-soluble extractive: not less than 6%; water-soluble extractive: not less than 12%; alizarin content (by HPLC): not less than 0.3% — alizarin and purpurin are the anthraquinone pigments responsible for the red colour and are used as identity markers. TLC uses alizarin as reference standard.