Rehmannia Extract

Botanical Name: Rehmannia glutinosa
Part Used: Root
Active ingredients:
Appearance: Brown Powder
Specification: 10:1
Package: 25kg/drum

What is Rehmannia Extract?

When a Chinese herbalist speaks of Fang Feng herb, he usually refers to the Saposhnikovia Divaricata root, namely Radix Saposhnikoviae, rather than the plant itself. As a common Chinese herb mainly produced in various regions of northern China, it is known for treating complaints like headache, body ache, pain in rheumatoid arthritis, and more. And the famous formula of Fang Feng Tong Sheng Wan is one of its representatives. According to Ming Yi Bie Lu (Appendant Records of Famous Physicians), an ancient medical work written around 520 A.D., this herb was also called Ping Feng, which is literally translated as screen. Metaphorically the author likened it to a screen and believed that it could dispel the wind like screen. Besides, it is also moist in nature, for which it is also known as the moisturizer in herbs that dispel wind.

Health Benefits of Rehmannia Extract

Rehmannia is the most important Chinese herb for disorders of the kidneys and adrenal glands.

It also appears to combat adrenal suppression caused by steroid hormones and has a similar tonic effect on the adrenal cortex as licorice.

A feature of rehmannia is that it is in a small group of herbs that are used to autoimmune diseases such as lupus, rheumatoid arthritis, fibromyalgia and multiple sclerosis.

Used to combat the symptoms and progression of these illnesses, anti-inflammatory herbs used include rehmannia, Indian sarsaparilla (Hemidesmus indicus) and bupleurum (Bupleurum chinense).

Rehmannia also hinders the breakdown of cortisone products in the body, which lengthens this drugs effect.

In one study, patients with rheumatoid arthritis were treated with rehmannia and experienced good results, including a reduction of joint pain, swelling, and increased joint movement.

The herb also improved the general symptoms of asthma and urticaria. Mild oedema developed in a small percentage of patients which is a similar reaction to that induced by adrenocortical hormones.

In traditional Chinese medicine (TCM) the unprocessed rehmannia root is used to reduce heat in the blood, to nourish yin and promote the production of body fluid. Indications for TCM use include febrile diseases, skin eruptions and nosebleed.

In Western herbal medicine, rehmannia extract is looked upon as an adrenal tonic; and is believed to support the cells of the adrenal cortex and pituitary during times of prolonged stress.

Oral doses (10-500 mg/kg) of rehmannia extract had an immune modulating effect in an experimental model.

Rehmannia root could therefore be helpful in addressing autoimmune conditions of the adrenals and thyroid.

Unlike liquorice (also an adrenal tonic), rehmannia root is suitable for use in patients with hypertension (high blood pressure).

The herb’s main active principles are iridoid glycosides. Catalpol was the first of these isolated from the herb, and it appears its main function is to stimulate production of adrenal cortical hormones.

These hormones are anti-inflammatory and explain the use of the herb in treating asthma, skin diseases and arthritis. Catapol is also used to increase the production of sex hormones and in TCM.

Rehmannia root is prescribed to treat menopause, impotence, hair loss (alopecia) and other hormone deficiencies.

Dosage of Rehmannia Extract

The dose range for rehmannia root is wide-ranging depending on the preparation used and is best discussed with your health care practitioner.

Oral doses (10-500 mg/kg) of rehmannia fluid extract had an immune modulating effect in an experimental model.

Certificate of Analysis

Assay 10:1 TLC Complies
Appearance Brown powder N/A Complies
Particle size 100% pass 80 mesh USP32<786> Complies
Extract Solvents Water/Ethanol N/A Complies
Identification Positive Reaction N/A Complies
Loss on Drying ≤5.0% Eur.Ph.6.0[2.8.17] Complies
Acid-insoluble ash ≤7.0% Eur.Ph.6.0[2.4.16] Complies
Lead(Pb) ≤1.0mg/kg Eur.Ph6.0<2.2.58>ICP-MS Complies
Arsenic(As) ≤1.0mg/kg Eur.Ph6.0<2.2.58>ICP-MS Complies
Cadmium(Cd) ≤1.0mg/kg Eur.Ph6.0<2.2.58>ICP-MS Complies
Mercury(Hg) ≤1.0mg/kg Eur.Ph6.0<2.2.58>ICP-MS Complies
Solvents Residue Meet Eur.Ph6.0<5.4> Eur.Ph 6.0<2.4.24> Complies
Pesticides Residue Negative USP32<561> Complies
Microbiological Control
Total bacterial count ≤1000cfu/g USP30<61> Complies
Yeast & mold ≤100cfu/g USP30<61> Complies
Salmonella Negative USP30<62> Complies
E.Coli Negative USP30<62> Complies

Flowchart of Production


Package for Rehmannia Extract


Shipping for Rehmannia Extract

  • By Express: Suitable for under 50kg, 5-10 days
  • By Air: Suitable for more than 50kg, 7-15 days
  • By Sea: Suitable for more than 500kg, 15-45days

Why Choose FYZ Rehmannia Extract?

  • FYZ is a professional Rehmannia Extract manufacturer in China, provides OEM service.
  • FREE SAMPLE with freight collection (5-10g) for detection, if you need more, please contact us.
  • Fast delivery by DHL/FedEx, air as your requirement.
  • All of our products from nature, no additive.
  • Money refund policy.