Heal  Yourself at Home
Cranial Electrotherapy Stimulation (CES)

Comfrey Herb

Guidelines for using comfrey Externallly / Topically and internally

Guidelines for using comfrey

External / Topical Use of comfrey

EXTERNAL use of comfrey root or leaves is NON- toxic

Based on the HMPC "Public statement on the use of herbal medicinal products containing toxic, unsaturated pyrrolizidine alkaloids (PAs)"(EMA/HMPC/572844/2009).   The acceptable daily intake is maximum 0.007 μg/kg/day for cutaneous preparations. Assessment report on Symphytum officinale L., radix EMA/HMPC/572844/2009 Page 27/27 Generally for adults the calculation is done with a body weight of 50 kg. Therefore the daily dosage would be: 0.007 μg/kg/day x 50 kg body weight = 0.35 μg/person/day for short- time use only (maximum 2 weeks). The use is restricted to intact skin.

However, combining DMSO with comfrey for external use is equivalent to taking it internally - since DMSO allows comfrey to penetrate skin through to the bloodstream.

Applying comfrey to broken skin allows comfrey PAs to enter blood stream

Using comfrey internally (i.e consuming it)

Consume comfrey for a maximum of 4 weeks;

Use Common rather than Russian comfrey, and leaves not roots (leaves contain less PAs).  Prefer comfrey source with a lower uPA (unsaturated PA) content

DAILY dose limit of 3- 5 ml liquid extract or 3- 5 g comfrey tea (in divided doses).    ~1 tsp. (1.5g) dried comfrey leaves makes 1 cup of tea.

-    Comfrey tea drinkers could be ingesting up to 5 mg of PAs per day  (i.e. 0.083 mg/ kg body weight /day).  Ingested toxic dose for humans is ~ 0.1- 10 mg PAs/kg body weight per day.    In fatal cases, total comfrey ingestion estimated 6- 167 mg/kg of body weight) and non- fatal cases of hepatic venoocclusive disease at 2- 27 mg/kg

Speijers and Egmond, as cited in Deshpande 2002b [81], p. 368)

Utilize a concurrent liver/kidney pyrrole-effect detoxifier

•   Licorice extract - Alkaline Glycerite (alkaloids not water- soluble in alkaline environment) /Glycyrrhizin - Rat study found that taking glycyrrhiza for 3 days prior to injection of powerful UPA retrorsine greatly
prevents pyrrole damage to liver

Lin 1999

•   Sulfur.   Glutathione is a powerful "in- house" antioxidant citical to detoxifying pyrrole in the liver, and glutathione's key-limiting ingredient is sulfur, particularly found in N acetylcysteine (500- 2000mg daily on empty stomach), alpha lipoic acid (300- 600mg 1- 3 x daily, also lowers blood sugar), MSM (1- 5g daily), glucosamine sulfate (1500 mg /day divided doses).

Good food sources of sulfur include egg yolks, cabbage, broccoli, cauliflower, Brussels sprouts, kale, collards, asparagus, onions, and garlic.

•   Possibly taurine and heparin

The SALE of comfrey products for INTERNAL use is illegal in the U.S. and Canada - but it is legal to purchase and grow your own comfrey in the U.S.


DISCLAIMER: The content on this website is intended for informational, and educational purposes only and not as a substitute for the medical advice, treatment or diagnosis of a licensed health professional. The author of this website is a researcher, not a health professional, and shall in no event be held liable to any party for any direct, indirect, special, incidental, punitive or other damages arising from any use of the content of this website. Any references to health benefits of specifically named products on this site are this website author's sole opinion and are not approved or supported by their manufacturers or distributors.

Attend to Diet, Lifestyle & Emotional State

N E W  S T A R T S

C-Reactive Protein - Reliable Inflammation Marker
hot flame


Chronic low-level inflammation (CLII) involved in almost all health problems

How to treat CLII

Pulsed Electromagnetic Field Therapy (PEMFT)


       "The medical kit of the future"

The Body Electric

General electrotherapy health benefits.   Used systemically and/or locally at specific problem areas of the body, its effective application has many benefits:

Detoxification Wellness / Healthy aging Pain relief 
Relief from insomnia Immune system restoral Anti-Inflammatory
Maximizes cellular energy production Accelerated tissue /bone
/scar healing
Stress Reduction
Muscle relaxation / rehabilitation Increased blood oxygen
/ circulation

There are several reasonably affordable electrotherapy devices available for personal use. The following electrotherapies are those that have received a significant amount of positive feedback:

Cranial Electrotherapy Stimulation (CES) applies specific frequency patterns to the head area, with the following benefits:

Balances neurotransmitters Relieves pain Treats depression
Substance abuse withdrawal Relieves insomnia Relieve stress / anxiety
Anti-Inflammatory Fibromyalgia +++