# Manikya Pishti

> Manikya Pishti is a bhasma, a mineral or metal preparation reduced to ash by repeated calcination. Journal of Ayurveda and integrative medicine. Cell death followed mitochondrial-dependent apoptosis involving loss of mitochondrial membrane potential, cytochrome c release, caspase activation, and DNA degradation.

## Names and identification

| Language | Name |
|----------|------|
| English | [Manikya Pishti](/herb/manikya-pishti/) |

## How does it work?

- [Anticancer](/reference/anticancer/): 70nm aluminum oxide nanoparticles induce mitochondrial-dependent apoptosis in cancer cells through loss of mitochondrial membrane potential, cytochrome c release, and caspase cascade activation - a genuine nanomedicine mechanism
- [Neuroprotective](/reference/neuroprotective/): Aluminum oxide nanoparticles at therapeutic doses demonstrate protective effects on neural tissue, possibly through modulation of oxidative stress pathways
- [Immunomodulatory](/reference/immunomodulatory/): Ruby nanoparticles may interact with immune cells to enhance innate immunity; the chromium trace content could play a role in [glucose](/glossary/compounds-d-g/#glucose) metabolism regulation

## Which traditional uses are supported by research?

- Immunostimulation and tuberculosis (Rajayakshma): The documented anticancer/apoptotic and immunomodulatory properties of ruby nanoparticles provide preliminary mechanistic support for traditional immune-enhancing claims
- Cognitive enhancement and neuroprotection: Preclinical neuroprotective studies validate the traditional use for improving Buddhi (intellect) and Smriti (memory)

## What do recent clinical trials show?

- Jha S, Trivedi V 2021. [Manikya Bhasma is a nanomedicine to affect cancer cell viability through induction of apoptosis](https://pubmed.ncbi.nlm.nih.gov/33358658/). *Journal of Ayurveda and integrative medicine*. PMID [33358658](https://pubmed.ncbi.nlm.nih.gov/33358658/) · [doi:10.1016/j.jaim.2020.11.001](https://doi.org/10.1016/j.jaim.2020.11.001)  
  Manikya Bhasma (70nm particles) reduced viability of MDAMB-231, HeLa, HCT-116, DLD-1, and MG-63 cancer cells with IC50 of 105.73-155.47 micrograms/ml. Cell death followed mitochondrial-dependent apoptosis involving loss of mitochondrial membrane potential, cytochrome c release, caspase activation, and DNA degradation.

*2 further claims previously listed here could not be traced to a published paper and have been removed. An absence here means we could not identify the source, not that no work exists.*

## Recent safety updates

- Aluminum oxide (Al2O3) is the primary component - while generally considered inert and safe at low doses, chronic aluminum exposure has been controversially linked to neurodegenerative conditions
- Preclinical toxicity study showed safety of traditionally prepared formulation in rats, but long-term human safety data is lacking
- The nanoparticle size (70nm) raises questions about tissue penetration and accumulation that are relevant to modern nanotoxicology frameworks
- Must be taken strictly under medical supervision; recommended dose 125-250 mg once or twice daily; exceeding recommended doses not advised

## What is it made of?

### Mineral/Elemental Profile

- **Aluminum oxide (Al2O3):** Major component (ruby, corundum)
- **Aluminum (Al):** ~53%
- **Chromium (Cr):** Trace (gives red color)
- **Iron (Fe):** Trace

**Analytical Methods:** XRD, SEM-EDS, ICP-OES

## Dosage forms and preparation

**Dosage Forms:** Pishti

**Standard Dosage:** 15–30 mg (precious stone — precise dosing)

**Bioavailability:** Good; ruby aluminum oxide in ultra-fine form

**Optimal Timing:** With honey or cream of milk

**Standardized Extract:** Ruby pishti — cold-processed precious stone preparation

**Shelf Life:** Indefinite

**Storage:** Airtight, premium container

**Marker Compounds:** Aluminium oxide (corundum), Chromium (gives red color), Trace elements

**Quality Parameters:** Standard pishti tests, gemstone authentication, particle size

**Vehicle (Anupana):** Honey, Malai, or as part of Ratna (gem) formulations

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Canonical version of this page: https://nighantu.ageayurveda.com/herb/manikya-pishti/

## Sources

- Amidha Ayurveda Herb Database (700+ herbs, CC-BY-4.0)
- Web research (clinical trials, WHO monographs, safety databases)
- Ayurvedic Pharmacopoeia of India

Published by Age Ayurveda in the Nighantu. Educational reference only, not medical advice.
Incorporates material from the Amidha Ayurveda Herb Database under CC BY 4.0.