Riddhi: Benefits, Evidence & Safety

TL;DR

Riddhi is one of the eight Ashtavarga herbs of Ayurveda, botanically identified as the Himalayan orchid Habenaria intermedia. Laboratory studies show its tuber extracts scavenge free radicals in test-tube assays, but there are no human clinical trials. The wild plant is endangered, so substitutes are commonly used.

(47 words. Sources: Choudhary et al., review of H. intermedia, in vitro; Misra et al. 2018, Ashtavarga review.)

What it is

Riddhi is one of the eight herbs of Ashtavarga: a classical group of rejuvenative (rasayana) drugs described in Ayurveda and famously used in formulations such as Chyavanprash (Misra et al., 2018). Recent botanical surveys identify Riddhi as Habenaria intermedia D. Don, a terrestrial orchid of the Western Himalayas growing at 1,200–4,000 m altitude (Misra et al., 2018). The tuber is the part used. Phytochemical work has reported phenols, tannins, thiamine, and calcium in the tubers, along with compounds including gallic acid, catechin, scopoletin, hydroxybenzoic acid, β-sitosterol, batatasin III, and sinapic acid (review of H. intermedia).

Traditional use

These are traditional claims, not clinical proof. Ashtavarga as a group is described as promoting vitality, strength, immunity, and cell regeneration, and is used in formulations for rejuvenation, healing fractures, and seminal weakness (comparative study of Ashtavarga herbs, 2026). A review of the Ashtavarga plants notes that both Habenaria species are regarded as being of great therapeutic value in curing asthma, cough, facial paralysis, vaginal diseases, and semen-related disorders, and in rejuvenation. Riddhi specifically is described as useful as a nerve and cardiac tonic and for blood-related infections, fever, cough, asthma, muscular pain, sprains, and arthritis (Misra et al., 2018). Chyavanprash and Ashtavarga churna are among the classical formulations containing it (review of H. intermedia).

What modern research says

Antioxidant activity (in vitro)

The most-studied property is antioxidant activity in laboratory assays. Ethanol and ethyl acetate tuber extracts showed DPPH free-radical scavenging with IC50 values of 35.46 and 32.88 µg/mL respectively, with the ethyl acetate extract the more effective scavenger (review of H. intermedia). An ABTS radical-scavenging assay measured an antioxidant potential of 2.723 mM ascorbic-acid-equivalents per 100 g dry weight in a methanolic extract (same review). In another comparison, the aqueous extract (IC50 75.11) neutralized free radicals more effectively than 80% ethanol (85.87) or 95% ethanol (79.05) extracts (Arora et al., cited in review). These are test-tube results: they show antioxidant chemistry, not health effects in people.

Antimicrobial and immunomodulatory reports

The same review summarizes reports of antibacterial, antimicrobial, and immunomodulatory activity for H. intermedia (review of H. intermedia). Details of these studies are sparse in the published literature, and all findings are preclinical: there are no human trials testing antimicrobial or immune effects.

What the evidence does not support (yet)

No human clinical trials of riddhi exist for any condition. The antioxidant findings come from chemical assays, which are the weakest form of evidence for health claims: they do not show the herb reduces oxidative stress, slows aging, or improves immunity in the body. The traditional rejuvenative claims remain untested by modern clinical research.

A conservation note

Habenaria intermedia is a rare, slow-growing Himalayan orchid whose natural populations have declined through habitat degradation and destructive harvesting for the herbal trade (review of H. intermedia). This is why classical texts and modern practice alike allow substitute herbs for the Ashtavarga group: and why products labeled "riddhi" may not contain the genuine orchid at all.

Safety & contraindications

Safety data is limited: talk to a clinician. There are no published human safety studies, dose-finding studies, or interaction data for Habenaria intermedia. Because the genuine herb is rare and endangered, commercial products are frequently substituted or adulterated, which adds an identity and quality risk. Avoid use in pregnancy and breastfeeding, and consult a qualified practitioner before use.

FAQs

What is riddhi?

Riddhi is one of the eight Ashtavarga herbs of Ayurveda, botanically identified as Habenaria intermedia D. Don, a terrestrial orchid of the Western Himalayas (Misra et al., 2018). Its tubers are used in rejuvenative formulations such as Chyavanprash and Ashtavarga churna (review of H. intermedia).

What is riddhi used for traditionally?

As part of Ashtavarga, it is traditionally valued as a rasayana (rejuvenative) for vitality, strength, and immunity, and described as useful for asthma, cough, nerve and cardiac weakness, muscular pain, and semen-related disorders (Misra et al., 2018). These are traditional claims, not clinical proof.

Is there clinical evidence for riddhi?

No: not in the clinical sense. There are no human clinical trials of riddhi for any condition. Modern research is limited to phytochemical analysis of the tubers and in-vitro antioxidant and antimicrobial assays of tuber extracts (review of H. intermedia). Nothing in the published evidence supports efficacy claims in people, and test-tube antioxidant results do not predict health effects in the body.

Is riddhi an antioxidant?

In test tubes, yes: tuber extracts scavenge DPPH and ABTS free radicals, with the ethyl acetate extract the most active in DPPH assays (IC50 32.88 µg/mL) (review of H. intermedia). Antioxidant activity in a chemical assay does not mean the herb reduces oxidative damage in the human body.

Why is genuine riddhi hard to find?

Habenaria intermedia is a rare Himalayan orchid whose wild populations have declined from habitat loss and destructive harvesting (review of H. intermedia). Classical Ayurvedic practice permits substitute herbs for Ashtavarga drugs, and commercial "riddhi" products are often substitutes or adulterants: a quality risk worth knowing about.

Is riddhi safe?

Human safety data is limited. There are no published studies on safe doses, pregnancy, breastfeeding, or drug interactions for Habenaria intermedia. Because the genuine herb is rare and endangered, products sold as riddhi are often substitutes or adulterants, adding a quality risk. Avoid it in pregnancy and breastfeeding, and consult a qualified practitioner before use.

Sources

Disclaimer

This article is for educational purposes only and is not medical advice. Herbal products can interact with medications and are not suitable for everyone. Talk to a qualified healthcare practitioner before use — especially if you are pregnant, breastfeeding, managing a medical condition, or taking prescription medicines.