St John's Wort 1:2 High Grade 500ml

Regular price $169.95 AUD

Key Benefits

  • Traditionally used in Western herbal medicine to support healthy mood and emotional wellbeing.
  • May help maintain emotional balance during periods of everyday stress or change.
  • Traditionally used to support nervous-system function.
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Practitioner-grade support. Always read the label and follow the directions for use.

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High-Grade St John’s Wort Flowering Herb Liquid Extract

MediHerb St John’s Wort High Grade 1:2 is a concentrated single-herb liquid extract prepared from the flowering herb top of Hypericum perforatum.

Standardised to contain a minimum of 0.4 mg/mL hypericin, this High Grade preparation provides a higher declared hypericin concentration than the regular MediHerb St John’s Wort liquid extract.

St John’s Wort is traditionally used in Western herbal medicine to support healthy mood, emotional wellbeing and nervous-system function. It may also help relieve temporary nervous tension, mild mood changes, fatigue associated with nervous tension and occasional difficulty settling or sleeping.

This 500 mL practitioner preparation may be prescribed individually or incorporated into a professionally formulated herbal compound.

St John’s Wort interacts with many medicines and should not be started, stopped or combined with prescription treatment without professional review.

Traditionally used in Western herbal medicine to support healthy mood and emotional wellbeing.

May help maintain emotional balance during periods of everyday stress or change.

Traditionally used to support nervous-system function.

May help relieve temporary nervous tension and fatigue associated with nervous strain.

May support mild mood symptoms associated with menopause where professionally assessed.

May support relaxation where emotional tension is contributing to occasional sleeplessness.

Standardised to contain a minimum of 0.4 mg/mL hypericin.

Provides a concentrated high-grade liquid format for individual practitioner prescribing and professional herbal compounding.

St John’s Wort should not be described as a natural antidepressant or as treating depression, anxiety disorders, bipolar disorder, chronic insomnia, neuralgia, menopause or another diagnosed condition.

Practitioner-guided mood and emotional-wellbeing support.

Adults experiencing temporary mild mood changes or nervous tension.

Adults prescribed St John’s Wort where nervous strain is contributing to fatigue or difficulty settling.

Women prescribed St John’s Wort as part of an individualised menopause-support plan.

Professional herbal formulas supporting healthy mood, emotional balance and nervous-system function.

Practitioners requiring a St John’s Wort extract with a higher declared hypericin concentration.

This product is not suitable for casual self-selection by people taking prescription or regular over-the-counter medicines.

Persistent low mood, loss of interest, panic attacks, major sleep disruption, unusual agitation, rapidly changing behaviour or symptoms affecting normal daily life requires appropriate professional assessment.

Common name: St John’s Wort

Alternative names: Common St John’s Wort, Perforate St John’s Wort, Hypericum

Botanical name: Hypericum perforatum

Plant part used: Flowering herb top

Plant family: Hypericaceae

Extract ratio: 1:2

Standardised constituent: Minimum 0.4 mg/mL hypericin

Ethanol content: 60% v/v

Format: High-grade standardised single-herb practitioner liquid extract

Bottle size: 500 mL

The flowering herb contains naturally occurring hypericin, pseudohypericin, hyperforin, flavonoids, phenolic compounds and other botanical constituents.

The declared hypericin level is used as a marker of extract strength and consistency. It does not determine suitability by itself, and the High Grade extract is not automatically more appropriate for every person.

This product should not be confused with the regular MediHerb St John’s Wort 1:2 liquid extract, which has a lower declared hypericin concentration and a lower ethanol content.

It should also not be considered interchangeable with tablets, capsules, infused oils or extracts standardised by their hyperforin content.

St John’s Wort (Hypericum perforatum) flowering herb top 1:2 liquid extract.

Standardised to contain a minimum of 0.4 mg/mL hypericin.

Contains ethanol 60% v/v.

Adults: Take 15–40 mL per week, or as directed by a qualified healthcare practitioner.

This is a weekly dosage range and must not be interpreted as 15–40 mL per day.

Follow the current Australian product label or the amount selected by your healthcare practitioner.

Shake gently and allow the bottle to settle before measuring.

Clinicians should avoid dispensing visible sediment from St John’s Wort liquid extracts.

Measure the prescribed amount carefully.

Dilute the measured amount in a small quantity of water immediately before taking.

Take only according to the current product label or your healthcare practitioner’s directions.

Do not exceed the recommended or professionally prescribed amount.

Do not begin St John’s Wort while taking medication until the complete combination has been checked by a doctor or pharmacist.

Do not suddenly stop St John’s Wort when it has been used alongside medication. Stopping it may alter the concentration or effectiveness of affected medicines.

Do not increase the dosage because mood, nervous tension, fatigue or sleep symptoms remain present.

Seek professional advice if symptoms persist, worsen, repeatedly return or begin affecting work, study, relationships or normal daily activities.

No added gluten or dairy.

Vegan-friendly.

Do not use if you have a known allergy or sensitivity to St John’s Wort, Hypericum perforatum or another ingredient in the preparation.

Stop use and seek urgent medical assistance if facial swelling, throat tightness, breathing difficulty, widespread hives, faintness or another serious allergic reaction develops.

Always check the current bottle label where allergies or dietary sensitivities are present.

For practitioner dispensing and professionally guided use.

Always read the label and follow the directions for use.

St John’s Wort can interact with many prescription, over-the-counter and complementary medicines.

Do not use it with medication unless the complete combination has been checked by a doctor or pharmacist who knows all medicines and supplements being taken.

St John’s Wort may affect drug-metabolising enzymes and transport proteins. This can reduce the effectiveness of some medicines or alter their blood concentrations.

Clinically important interactions may occur with hormonal contraceptives, anticoagulants, antiplatelet medicines, transplant medicines, HIV medicines, antiviral medicines, cancer treatments, heart medicines, seizure medicines, statins, sedatives, opioids and many other prescriptions.

St John’s Wort may reduce the effectiveness of oral contraceptive pills, implants and other forms of hormonal contraception.

Breakthrough bleeding may indicate altered contraceptive hormone exposure but does not reliably confirm whether contraception remains effective.

People using hormonal contraception require medical or pharmacist advice about suitability and appropriate additional contraceptive protection.

Do not combine St John’s Wort casually with antidepressants or other serotonin-affecting medicines and supplements.

This includes monoamine oxidase inhibitors, selective serotonin reuptake inhibitors, serotonin-noradrenaline reuptake inhibitors, tricyclic antidepressants, migraine triptans, tramadol, dextromethorphan, buspirone, 5-HTP, tryptophan and SAMe.

Combining several serotonin-affecting products may contribute to excessive serotonergic effects.

Seek urgent medical attention for severe agitation, confusion, fever, heavy sweating, diarrhoea, tremor, muscle rigidity, overactive reflexes or a rapidly racing heartbeat.

Do not use without specialist approval if you take cyclosporine, tacrolimus, sirolimus or another medicine used to prevent organ rejection.

Reduced transplant-medicine concentrations can result in loss of treatment effectiveness and organ rejection.

Do not use alongside cancer treatment, HIV treatment, antiviral medicine, warfarin or another medicine requiring precise blood-level control unless specifically approved and monitored by the treating specialist.

Do not start, stop or alter St John’s Wort around prescribed medication without professional guidance. Medicine concentrations may change when the herb is introduced and may rise again when it is discontinued.

Do not use St John’s Wort as a substitute for antidepressant medication, counselling, psychotherapy or professional mental-health care.

Do not suddenly stop antidepressant or other mental-health medication to begin St John’s Wort.

This product is not suitable for serious depression or severe mental-health symptoms.

People with bipolar disorder, a history of mania, psychosis, schizophrenia or significant mood instability should not use St John’s Wort without specialist medical supervision.

St John’s Wort may contribute to agitation, mood elevation, mania or worsening psychotic symptoms in susceptible people.

Seek urgent assistance for suicidal thoughts, self-harm thoughts, hallucinations, severe agitation, rapidly escalating behaviour or an inability to remain safe.

St John’s Wort may increase sensitivity to sunlight and artificial ultraviolet radiation.

The risk may be more relevant with higher doses or higher-strength preparations.

Avoid excessive sunlight, tanning beds and intense ultraviolet exposure while using the product.

Use protective clothing and broad-spectrum sunscreen when outdoors.

Stop use and seek professional advice if unusual sunburn, marked skin redness, blistering, eye discomfort or another photosensitivity reaction develops.

Use cautiously if you have an existing photosensitivity condition or take medication known to increase sensitivity to sunlight.

Possible side effects may include digestive discomfort, dry mouth, headache, dizziness, fatigue, restlessness, anxiety, insomnia, confusion, sexual dysfunction or increased sensitivity to sunlight.

Use during pregnancy only under the supervision of an appropriately qualified healthcare practitioner.

Use cautiously while breastfeeding and only with professional guidance.

Adequate safety information has not been established for routine unsupervised use during pregnancy or breastfeeding.

Use in children and adolescents under 18 years of age is not recommended unless specifically prescribed and medically supervised.

The High Grade preparation contains 60% ethanol.

Do not apply the undiluted liquid directly to wounds, inflamed skin, psoriasis plaques, the eyes or mucous membranes.

Where a practitioner specifically recommends topical use, 5 mL may be incorporated into 45 g of vitamin E cream. The finished preparation should be correctly compounded, labelled and used only as directed.

A professionally prepared topical cream is not equivalent to applying the concentrated liquid extract directly to the skin.

Discontinue use at least seven days before general anaesthesia, surgery, dental surgery or an invasive procedure unless otherwise directed by the treating medical team.

Tell the surgeon, anaesthetist, dentist and pharmacist that St John’s Wort has been used.

Contains ethanol.

Keep out of reach of children.

Store below 25°C in a cool, dry place away from direct sunlight and excessive heat.

Keep the bottle tightly closed when not in use.

Allow any natural sediment to settle and follow practitioner dispensing instructions.

Store away from flames, sparks, hot surfaces and other ignition sources due to the 60% ethanol content.

Keep securely out of reach of children.

Follow any additional storage instructions printed on the current Australian product label.

ST JOHN’S WORT HIGH GRADE LIQUID FAQSCommon Questions About St John’s Wort High Grade Liquid Extract
What is MediHerb St John’s Wort High Grade 1:2 Liquid Extract?

It is a concentrated single-herb liquid extract prepared from the flowering herb top of Hypericum perforatum.

The extract is standardised to contain a minimum of 0.4 mg/mL hypericin. The 500 mL format is intended primarily for practitioner dispensing and professional herbal compounding.

How is the High Grade extract different from regular St John’s Wort 1:2?

The High Grade preparation has a higher declared hypericin concentration and contains a higher percentage of ethanol.

It provides a minimum of 0.4 mg/mL hypericin and contains 60% ethanol. The regular extract has a lower declared hypericin concentration and should not be assumed to have identical strength.

What is St John’s Wort traditionally used for?

St John’s Wort is traditionally used in Western herbal medicine to support healthy mood, emotional wellbeing and nervous-system function.

It may also be prescribed for temporary nervous tension, mild mood changes, fatigue associated with nervous strain and occasional difficulty settling.

Does the higher hypericin level mean the High Grade version works better?

Not necessarily.

The higher declared hypericin concentration identifies this as the High Grade preparation, but it does not mean that it is more suitable for every person. Medicine use, mental-health history, photosensitivity, dosage and the practitioner’s treatment plan remain more important than choosing the strongest extract.

Can St John’s Wort High Grade treat depression or anxiety?

No treatment claim should be made for depression, an anxiety disorder, panic attacks, bipolar disorder or another diagnosed mental-health condition.

Persistent low mood, severe anxiety, major sleep disruption, suicidal thoughts or symptoms affecting daily life requires appropriate professional care.

Why does St John’s Wort interact with so many medicines?

St John’s Wort can affect enzymes and transport proteins used by the body to process medicines.

This may reduce the effectiveness of some treatments or alter their blood concentrations. Every prescription, over-the-counter medicine and supplement should be checked before use.

Can St John’s Wort High Grade affect hormonal contraception?

Yes.

St John’s Wort may reduce the effectiveness of oral contraceptive pills, implants and other hormonal contraception. People using hormonal contraception should obtain medical or pharmacist advice about suitability and additional contraceptive protection.

Can it be taken with antidepressants or other mood-support supplements?

Not unless the complete combination has been specifically assessed and supervised by an appropriately qualified healthcare professional.

Combining St John’s Wort with antidepressants or other serotonin-affecting products may cause serious adverse effects. Prescribed mental-health medication should never be stopped suddenly to begin the herb.

Does the High Grade extract increase sensitivity to sunlight?

St John’s Wort may increase sensitivity to sunlight and artificial ultraviolet radiation, particularly at higher doses or with higher-strength preparations.

Avoid tanning beds and excessive ultraviolet exposure. Use protective clothing and sunscreen and seek advice if unusual burning, blistering or skin redness develops.