Guan Zhong (Dryopteris Crassirhizoma) Tincture, Rhizome
Cyrtomium, Guan Zhong (Dryopteris Crassirhizoma) Tincture, Dried Rhizome Liquid Extract, Cyrtomium, Herbal Supplement
Common Name : Cyrtomium
Botanic Name : Dryopteris Crassirhizoma
State / Part : Dry / RhizomeForm : Cyrtomium Liquid Drops / Tincture
UPC : 840253617224MPN : CYDCR
SKU : cyrtomium-pharm-alcext
Application : For internal use
Availability : In Stock
Guan Zhong (Dryopteris Crassirhizoma) Liquid Extract Tincture, Dried Rhizome
Highest-strength liquid extract from the dried rhizome of Dryopteris crassirhizoma, the fern known in Chinese herbal tradition as Guan Zhong (more precisely Mian Ma Guan Zhong), and in older Western herbals as male fern rhizome, prepared by classic conventional extraction. This product is also labeled Cyrtomium, but botanically Cyrtomium is a different fern genus; our material is Dryopteris crassirhizoma, and we print that botanical name so the identity is clear.
- Main ingredient: Guan Zhong (Dryopteris crassirhizoma) dried rhizome. Origin: Russia.
- Menstruum: organic alcohol, vegetable glycerin, crystal clear water.
- GLUTEN FREE.
- The rhizome naturally contains phloroglucinol compounds and other plant constituents - named here only as facts of the raw material.
- Concentrated liquid extract, taken by the drop.
Botanical Identity
Dryopteris crassirhizoma is a fern of the Dryopteridaceae family. The part used is the rhizome. "Guan Zhong" is a traditional name that has been applied to the rhizomes of fifty or more different fern species; the Chinese Pharmacopoeia recognizes Dryopteris crassirhizoma (Mian Ma Guan Zhong) as an official source. It is a different plant from the ornamental "holly fern" (Cyrtomium fortunei), from the region called Guanzhong in China, and, while related, from the male fern (Dryopteris filix-mas).
Important Safety Information - Please Read Before Use
This is a potent traditional herb. Use it only under the guidance of a qualified healthcare practitioner. It is not intended for self-treatment.
- Do not take with fatty or oily food, or with oils or fats. Fats can increase the absorption of certain naturally occurring compounds in the rhizome.
- Not to be used during pregnancy, and avoid it while nursing.
- Not for children. Keep out of the reach of children.
- Do not exceed the suggested serving.
- If you take any medication or have any medical condition, consult your physician before use. Do not use if you are allergic to any of the ingredients.
- Store in a cool, dry place.
Suggested use: Shake well before use. Take 20-30 drops (about 1 ml, one full squeeze of the dropper bulb) in 2 oz of water, only as directed by a qualified healthcare practitioner. Do not exceed the suggested serving.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
| Name | Language | Note |
|---|---|---|
| Khanshar | Arabic | General term for fern used in Unani medicine |
| Mian Ma Guan Zhong | Chinese (Pinyin) | Specific name to distinguish it from other 'Guan Zhong' sources |
| Guan Zhong | Chinese (Pinyin) | Traditional Chinese Medicine (TCM) name for the medicinal rhizome |
| Mien-ma-kuan-chung | Chinese (Wade-Giles) | Older transliteration of the TCM name |
| Cyrtomium Extract | Commercial Name | Commonly used commercial name (else) |
| Male Fern Rhizome Extract | Commercial Name | Commonly used commercial name (else) |
| Dryopteris Crassirhizoma Extract | Commercial Name | Commonly used commercial name (else) |
| Mian Ma Guan Zhong Extract | Commercial Name | Commonly used commercial name (else) |
| Guan Zhong Extract | Commercial Name | Commonly used commercial name (else) |
| Thick-stemmed Wood Fern | English | Literal translation of the species name crassirhizoma |
| Crown Wood Fern | English | Common horticultural and descriptive name |
| Fougère à rhizome épais | French | Literal translation of the thick-rhizomed fern |
| Dicker Wurmfarn | German | Descriptive botanical name |
| Felce maschio dell'Est | Italian | Translates as 'Eastern Male Fern' |
| Nari-oshida | Japanese | Local Japanese varietal name |
| Oshida | Japanese (Romaji) | Common name in Japan |
| Kwanjung-geun | Korean | Refers specifically to the root/rhizome part |
| Gwan-jung | Korean (Romaji) | Standard name in Korean traditional medicine |
| Crassirhizomae Rhizoma | Latin (Pharmacopeia) | Official pharmaceutical name for the dried rhizome |
| Vostochny Muzhskoy Paporotnik | Russian | Means 'Eastern Male Fern' |
| Helecho de rizoma grueso | Spanish | Descriptive common name |
| Sam pat | Thai | Generic Thai term for similar medicinal ferns |
| Quán chúng | Vietnamese | Vietnamese name derived from the Chinese TCM name |
As a solvent, we use alcohol to preserve the integrity of the extract and support a clean extraction process.
Our master herbalists analyze each batch and adjust extraction parameters as needed, ensuring consistent quality despite natural variations in botanical sources.
The result is a potent, stable liquid extract that captures the full spectrum of the botanical's benefits.
- Organoleptic evaluation (color, consistency, aroma)
- FTIR and/or HPTLC spectral analysis for identity confirmation
- Microbiological testing (total plate count, E. coli, coliforms)
- Yeast and mold screening
- Alcohol content verification
- Viscosity measurement
- Refractometric analysis
Servings Per Container: 60
† Daily Value (DV) Not Established.
COAs are available upon request for customers with Wholesaler or Practitioner accounts.
To request a COA, please provide your order number and the batch number from the product label.
This policy helps us ensure traceability and maintain high standards of documentation for professional and bulk-use customers.
Each batch is manufactured with care and has a 6-year shelf life when properly stored in a cool, dark place.
All Hawaii Pharm products are manufactured in our FDA registered facility in Hawaii, USA, following strict Good Manufacturing Practices (GMP). Our dedication to quality control ensures consistency and purity in every bottle.
We stand behind the quality of our Cyrtomium (Dryopteris Crassirhizoma) Dry Rhizome Tincture with our satisfaction guarantee. Each bottle contains natural botanical ingredients, expertly extracted without preservatives or synthetic additives.
To maintain optimal potency, store your Cyrtomium (Dryopteris Crassirhizoma) Dry Rhizome Tincture in a cool, dark, and dry place. When properly stored, this product retains its quality for at least 6 years from the manufacturing date.
At Hawaii Pharm, quality is our foundation.
Every bottle of our Cyrtomium (Dryopteris Crassirhizoma) Dry Rhizome Tincture undergoes rigorous testing and quality control to ensure you receive only the finest botanical extract.
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This tincture has done all it has been said to do. As an added bonus, it doesn't taste awful, as quite a few tinctures do.
Love this product! it is a keeper at my home .
Item exactly as described. Item arrived on time.
thank you for sending out promptly
I have not used this product yet, hopefully good product.
Arrived earlier than expected. Excellent product!
Excellent. 100%
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