GoldenSeal Drops 30 ml

Goldenseal Tincture — Hydrastis canadensis

Goldenseal is one of the most revered and widely used herbs in Western herbal medicine — and one of the most precious. Once abundant in the damp, shaded forests of North America, it was used for centuries by Native American peoples both as a natural dye and a powerful medicine. So extensively was it harvested that commercial cultivation became necessary by the early twentieth century, and it remains a rare and costly herb to this day.

The name Hydrastis derives from the Greek for “water-acting,” a reference to its well-documented effect on the secretion of mucous membranes throughout the body. It entered both the United States and British Pharmacopoeias as a treatment for uterine inflammation, and its reputation as an antimicrobial, anti-catarrhal, and digestive tonic has endured across generations of clinical herbalism.

Our Goldenseal tincture is certified organic, prepared as a 1:10 extraction in 60% ethanol, and has been cold-soaked for six years before bottling — a slow, patient process that produces an exceptionally potent and high-quality preparation.

Key Active Constituents

Goldenseal’s primary active alkaloids are berberine, hydrastine, and canadine. The majority of clinical research has focused on berberine, which has demonstrated antimicrobial, anti-inflammatory, and antidiarrheal activity in both laboratory and human studies. It is important to note that most published clinical trials have used isolated berberine rather than whole goldenseal extract — the full-spectrum herb may behave differently in practice.

Traditional Uses

Goldenseal has a long history of use across a broad range of conditions, particularly those involving mucous membranes and microbial challenge:

• Digestive support — gastritis, peptic ulcer, nausea, and infectious diarrhoea. In small doses (10 drops in a glass of water), it has been used to settle acute digestive upset, including traveller’s diarrhoea.
• Oral health — as a mouthwash or applied directly with a toothbrush for sore or bleeding gums, mouth ulcers, and oral infections.
• Topical first aid — applied to cuts, infected sores, cold sores, ringworm, and skin conditions including acne and eczema. Note: goldenseal tincture may sting on open wounds — apply a little olive oil to the area first, then apply the tincture on a cotton ball or gauze and leave for 10 minutes. Reapply frequently.
• Ear infections — traditionally combined with mullein for earache and otitis media. Clinically, 5–10 drops in each ear 2–4 times daily during the acute phase, then once daily for two weeks, has been used effectively for both acute and recurrent ear infections, including swimmer’s ear.
• Respiratory and sinus conditions — nasal congestion, catarrhal conditions, and upper respiratory tract infections. Goldenseal is frequently combined with Echinacea in commercial cold and flu preparations, though the synergistic effect of this combination has not been confirmed in clinical trials.
• Liver and uterine support — traditionally used to regulate liver function and, in combination with Beth root, for uterine haemorrhage. Also used historically for menstrual disorders.
• Eyewash — in very dilute doses as a soothing wash for eye irritation.
• Convalescence and appetite — traditionally considered beneficial for those recovering from illness or experiencing poor appetite.

Traditional Herbal Combinations

• With mullein — for earache and ear infections
• With meadowsweet and chamomile — for gastric and digestive conditions
• With Beth root — for uterine haemorrhage
• With Echinacea — for upper respiratory infections (widely used, though synergy is not yet scientifically confirmed)

Research & Evidence

Clinical research on goldenseal as a whole herb is limited; most published studies have examined its primary alkaloid, berberine. Key findings include:

• Infectious diarrhoea — Berberine has demonstrated effectiveness against infectious diarrhoea in both children and adults, including E. coli-associated infection. (Rabbani et al., 1987, Journal of Infectious Diseases)
• Giardiasis — Berberine has shown activity against Giardia lamblia in clinical studies. (Choudhry et al., 1972, Indian Journal of Medical Research)
• Trachoma — Berberine eye drops have been studied for trachoma with positive outcomes.
• Type 2 diabetes (adjunctive) — Berberine has demonstrated blood glucose-lowering effects in clinical trials, supporting its use as part of an integrative approach to non-insulin-dependent diabetes mellitus. (Zhang et al., 2008, Metabolism)
• Antimicrobial and anti-inflammatory activity — Animal and laboratory studies confirm berberine’s broad-spectrum antimicrobial and anti-inflammatory properties. (Imanshahidi & Hosseinzadeh, 2008, Phytotherapy Research)
• Cutaneous leishmaniasis — Berberine has been studied topically for cutaneous leishmaniasis with promising results.

It is worth noting that demand for goldenseal has historically outpaced supply, leading to adulteration with related herbs such as Oregon grape (Mahonia aquifolium) and Chinese goldthread (Coptis chinensis). While these herbs also contain berberine, their alkaloid profiles differ and they may not replicate the full therapeutic action of genuine goldenseal. Our tincture is made exclusively from certified organic Hydrastis canadensis.

Dosage Guide

Our tincture is prepared as a 1:10 in 60% ethanol.

• Acute diarrhoea (internal) — 2–4 ml daily, or 10 drops in a glass of water three times daily (clinical preference for smaller, more frequent doses)
• Ear infections (topical) — 5–10 drops in each ear, 2–4 times daily during the acute phase; once daily for two weeks thereafter
• General use — 2–4 ml tincture (1:10) three times daily, or as directed by your practitioner
• Berberine equivalent (for reference) — 100–200 mg berberine hydrochloride four times daily has been used in clinical trials for infectious diarrhoea

In clinical practice, smaller doses of this precious herb are generally preferred. Always use under the guidance of a qualified herbalist or naturopath.

⚠️ Contraindications & Safety

• Pregnancy: Not for internal use during pregnancy. Goldenseal may stimulate uterine contractions and has been associated with risk of harm to the fetus or neonate.
• Breastfeeding: Internal use is discouraged during breastfeeding.
• High blood pressure: Goldenseal is hypertensive in large doses — avoid high internal doses in cases of hypertension. Use in combination formulas only.
• Dosage: Large doses are toxic. Prolonged high-dose use is not recommended.
• Fresh plant: Do not consume the fresh plant — it can cause ulceration and inflamed mucous tissues.
• Drug interactions: Goldenseal inhibits cytochrome P450 liver enzymes, which may increase blood levels of other medications, herbs, or supplements. Berberine may also reinforce the effects of drugs that displace bilirubin from protein binding. Consult your Doctor or Naturopath if you are taking any medications.

This product is intended for use under the guidance of a qualified herbalist or naturopath. It is not a substitute for professional medical advice or treatment.

TGA Disclaimer: This product is a traditional herbal preparation. It is not a medicine and is not intended to diagnose, treat, cure, or prevent any disease. Always read the label and follow the directions for use. If symptoms persist, worsen, or change unexpectedly, talk to your health professional. This product has not been evaluated by the Therapeutic Goods Administration (TGA).