Available either as a dried herb or herbal tincture.

Please note this is a nutritional, functional horse food supplement and not veterinary medicine. See Dr Kellon's Horse Sense - 'Nutrition is not 'Alternative' Therapy for more information.

Tincture

Our human-grade, certified organic tinctures give you a ready-to-absorb potent source of phytonutrients at the highest-strength available, for immediate absorption straight into the bloodstream and to the body’s cells.

100% certified organic pure tincture: Symphytum officinale Folia (Comfrey Leaf), Cold Macerated, Organic Cultivated, 1:3 35%

~ Feed Guide

• 6ml/100kg bodyweight, daily in feed.
• Always shake the bottle to disperse any sediment.
• 3-year shelf-life.

Dried Herb

Certified organic dried herb: Symphytum officinale Folia (Comfrey) Leaf & Herb , Cut, Cultivated/wild harvested, Origin Poland

~ Feed Guide

• 5g/100kg bodyweight per day, thus for an average 500kg horse add 25g daily to feed.
• 1-year shelf-life.

Functional Nutritional Value

Key Constituents

~ Root: allantoin (0.6–4.7%), rosmarinic acid (up to 0.2%), mucilage polysaccharides (about 29%), chlorogenic acid (0.012%), caffeic acid (0.004%), α-hydroxy caffeic acid, glycopeptides and amino acids, triterpene saponins, oleanolic acid, lithospermic acid, pyrrolizidine alkaloids (0.013% to 1.2%), glycosides (Staiger et al., 2012), polyphenols, phytosterols (Tice, 1997) tannins, gum, carotene, vitamin B12, protein, and zinc

~ Leaf: allantoin (0.4%), mucilage polysaccharides, polyphenols, amino acids, phytosterols, triterpenoids, saccharides, and pyrrolizidine alkaloids (Tice, 1997)

NB. Our range of botanicals are all grown, harvested and dried without the use of agri-chemicals, non-irradiated and GMO free - see our Quality page for Quality Management & Certification Documents. Laboratory tested for identification and compliance to the British and European Pharmacopoeia standards, and are human grade.

Please be aware that if you're purchasing our dried botanicals for human use, our dried range is cut to appropriate sizes for feeding to horses.

Safety

The safety of comfrey has been debated for decades due to the presence of pyrrolizidine alkaloids (PAs), which have been shown to be toxic in certain conditions. While the extent of risk is still discussed, it’s important to consider its potential toxicity before use.

The safest approach is to feed the leaf only, but not to the pregnant or nursing mare, in the event of liver conditions or cancer, or when taking liver-affecting medications.

For external use, absorption of PAs through the skin is considered minimal, making short-term application generally regarded as safe when limited to 4-6 weeks per year. (Easley & Horne, 2016; Visser, 2019; Gardner & McGuffin, 2013; Hoffmann, 2003).