Deep Lung Support™

Supports bronchial health and clear breathing

Deep Lung Support™ is Harker Herbals' iconic respiratory tonic and New Zealand's No.1 respiratory support*. Created from Malcolm Harker's original formula, this bold mint tonic combines more than 18 herbs and essential oils. Crafted to support healthy respiratory function, soothe irritated airways and support easy breathing. A powerful choice for winter respiratory support and when the chest feels heavy or congested.

*Source: IQVIA National Pharmacy MAT Dollar sales to 31/8/25.

  • NZ's No.1 respiratory support*
  • Rapid respiratory support
  • Supports clear airways for healthy breathing
  • Formulated with 18 herbs and essential oils
  • Features elecampane, horehound, eucalyptus, peppermint and menthol
  • Original Malcolm Harker formula trusted by Kiwi families for decades
Bitter Sweet
Thin Thick
Size
Subscription Save 4, 6 or 8 weeks
Delivery every 4-weeks — first 0% / recurring 20%
Delivery every 6-weeks — first 0% / recurring 20%
Delivery every 8-weeks — first 0% / recurring 20%

$41.50

or 4 payments of $10.37 NZD with

Deep Lung Support™
Deep Lung Support™ $41.50
Deep Lung Support™
$41.50

or 4 payments of $10.37 NZD with

  • NZ's No.1 respiratory support*
  • Rapid respiratory support
  • Supports clear airways for healthy breathing
  • Formulated with 18 herbs and essential oils
  • Features elecampane, horehound, eucalyptus, peppermint and menthol
  • Original Malcolm Harker formula trusted by Kiwi families for decades
Bitter Sweet
Thin Thick

Ideal for when you're feeling

Chesty
Move Mucus
Tight Chest

Format

Liquid

Suitable for

Over 12 years

Flavour profile

Strong Mint
Size
Subscription Save 4, 6 or 8 weeks
Delivery every 4-weeks — first 0% / recurring 20%
Delivery every 6-weeks — first 0% / recurring 20%
Delivery every 8-weeks — first 0% / recurring 20%
Purchase Options

Delivery Frequency

You can pause, skip, swap or cancel your subscription anytime.

Details

Deep Lung Support™ is our iconic respiratory tonic and New Zealand's No.1 respiratory support*. Created from Malcolm Harker's original formula, this bold mint tonic combines more than 18 herbs and essential oils to help move chesty build-up, ease tight chests and support open airways and comfortable breathing. A powerful choice for winter respiratory support and when the chest feels heavy or congested. *Source: IQVIA National Pharmacy MAT Dollar sales to 31/8/25.


How to take

Adults over 12 years:

Take 5-10 mls four to six times daily.

Shake well before use. Swill in mouth for 10
seconds before swallowing if possible.

Children 12 years and under may take Harker Herbals Children’s Deep Lung Support and Children's Chest Soothe Night.

Herbalist tips

While you can take this tonic mixed into warm water, take this straight for best results and to feel that clearing feeling.

This is an original Malcolm Harker tonic. Malcolm recommended:

  • taking this tonic straight, or added to 50 ml of boiled water as a tea
  • avoiding mucus forming foods such as gluten, egg-white, chocolate, dairy, polyunsaturated oils and regular table salt
  • adopting gluten-free grain foods, whole foods (greens, fruits nuts, seeds), unprocessed coconut oil and Celtic & NZ Sea Salt with Kelp

    With all his tonics, Malcolm also recommended using Intestinal Cleanse for 1-2 weeks to reduce parasite populations. By reducing the load on the body of parasites, the body is able to use nutrients from food and the active ingredients in his tonics more efficiently.
Ingredients

Each 5ml dose contains:

Dried herbs: Elecampane Root 156.25 mg, White Horehound and Coltsfoot 104.17 mg each, Pleurisy Root 20.83 mg, Kumarahou Flower 3.79 mg, Lobelia Inflata 31.23 mg (lobeline content <10 ppm), Cayenne Pepper Fruit 9.39 mg, Ginger Root 9.39 mg, Licorice Root 5.23 mg, Plus Menthol 9.39 mg, Iodine 0.21 mcg.

Essential oils:
Rosemary, Juniper Berry, Clove Bud, Pine Bark, Cedarwood, Lemon, Peppermint and Eucalyptus 0.0021 ml each.

In a base of
Vegetable Glycerine, Irish Moss, Jojoba Oil, Celtic Sea Salt, Citric Acid and Water.

Benefits

Deep Lung Support combines traditional respiratory herbs including Irish moss, licorice, cayenne, ginger, elecampane, horehound and kumarahou with aromatic essential oils such as eucalyptus, peppermint, pine and rosemary. These botanicals were selected to work together in support of everyday respiratory wellbeing, airway comfort and comfortable breathing.

Not to be taken while pregnant or breastfeeding.

Always read the label and use only as directed. If taking prescribed medication, consult your health professional before taking this product. If symptoms persist, seek professional medical advice.

Deep Lung Support™

Ideal for when you're feeling

Chesty
Move Mucus
Tight Chest

Format

Liquid

Suitable for

Over 12 years

Flavour profile

Strong Mint

Like a breath of fresh air. As soon as I take it I feel I can take a deep breath & it helps to clear mucus.

Multi herb formula
No GMO & vegan friendly ingredients
No Added Sugar
No preservatives, artificial colours or flavours
Ingredients Tested for purity, potency and efficacy
Multi herb formula
No GMO & vegan friendly ingredients
No Added Sugar
No preservatives, artificial colours or flavours
Ingredients Tested for purity, potency and efficacy
What is Deep Lung Support™?

Deep Lung Support™ is our iconic respiratory tonic and New Zealand's No.1 respiratory support*. Created from Malcolm Harker's original formula, this bold mint tonic combines more than 18 herbs and essential oils to help move chesty build-up, ease tight chests and support open airways and comfortable breathing. A powerful choice for winter respiratory support and when the chest feels heavy or congested. *Source: IQVIA National Pharmacy MAT Dollar sales to 31/8/25.

How it works

Deep Lung Support combines traditional respiratory herbs including Irish moss, licorice, cayenne, ginger, elecampane, horehound and kumarahou with aromatic essential oils such as eucalyptus, peppermint, pine and rosemary. These botanicals were selected to work together in support of everyday respiratory wellbeing, airway comfort and comfortable breathing.

Use Cases

People commonly use this herbal tonic when experiencing:

- Chest heaviness or mucus build up
- Occasional throat irritation
- Seasonal respiratory discomfort
- Environmental irritants such as smoke or pollution

Ingredients

Each 5ml dose contains:

Dried herbs: Elecampane Root 156.25 mg, White Horehound and Coltsfoot 104.17 mg each, Pleurisy Root 20.83 mg, Kumarahou Flower 3.79 mg, Lobelia Inflata 31.23 mg (lobeline content <10 ppm), Cayenne Pepper Fruit 9.39 mg, Ginger Root 9.39 mg, Licorice Root 5.23 mg, Plus Menthol 9.39 mg, Iodine 0.21 mcg.

Essential oils:
Rosemary, Juniper Berry, Clove Bud, Pine Bark, Cedarwood, Lemon, Peppermint and Eucalyptus 0.0021 ml each.

In a base of
Vegetable Glycerine, Irish Moss, Jojoba Oil, Celtic Sea Salt, Citric Acid and Water.

Usage Instructions

Adults over 12 years:

Take 5-10 mls four to six times daily.

Shake well before use. Swill in mouth for 10
seconds before swallowing if possible.

Children 12 years and under may take Harker Herbals Children’s Deep Lung Support and Children's Chest Soothe Night.

Herbalist tips

While you can take this tonic mixed into warm water, take this straight for best results and to feel that clearing feeling.

This is an original Malcolm Harker tonic. Malcolm recommended:

  • taking this tonic straight, or added to 50 ml of boiled water as a tea
  • avoiding mucus forming foods such as gluten, egg-white, chocolate, dairy, polyunsaturated oils and regular table salt
  • adopting gluten-free grain foods, whole foods (greens, fruits nuts, seeds), unprocessed coconut oil and Celtic & NZ Sea Salt with Kelp

    With all his tonics, Malcolm also recommended using Intestinal Cleanse for 1-2 weeks to reduce parasite populations. By reducing the load on the body of parasites, the body is able to use nutrients from food and the active ingredients in his tonics more efficiently.
  • Not to be taken while pregnant or breastfeeding.
  • Always read the label and use only as directed. If taking prescribed medication, consult your health professional before taking this product. If symptoms persist, seek professional medical advice.
  • *Source: IQVIA National Pharmacy MAT Dollar sales to 31/8/25
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Like a breath of fresh air as soon as I take it I feel I can take a deep breath & it helps to clear mucus.

Verified Buyer

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Powerful natural ingredients

Our pure and powerful herbal extracts work hard for your wellness. Every spoonful delivers meaningful levels of active ingredients, each sourced from trusted growers around the world.

View Our Ingredients Glossary
Elecampane

Elecampane

Inula helenium

A wonderful herb for respiratory health, especially a productive cough where it thins and loosens excess mucus in the lungs and airways. It also acts as an expectorant, to support the expulsion of that excess mucus from the lungs, making it easy to breathe. Elecampane contains compounds with antimicrobial properties, which contribute to its traditional use in supporting respiratory illness. The high level of mucilage in this herb is also soothing for the lining of the lungs.

Menthol Crystals

Menthol Crystals

Mentha arvensis

A key ingredient in our respiratory tonics, menthol crystals are derived from distilling and freezing the oils in peppermint and other mint varieties. It interacts with the cooling receptors in the nasal passages, throat and bronchial tubes to provide the sensation opening of the airways for easy breathing. When ingested, inhaled or applied topically to the skin, it has the sensation of cooling and is often used to cool skin in preparations for the chest and joints.

Licorice

Licorice

Glycyrrhiza glabra

One of the most widely used and trusted herbs in traditional medicine, licorice is also available in Germany as an over-the-counter medicine. It contains glycyrrhizin, reported to have anti-inflammatory and antimicrobial activities as well as being up to 50 times sweeter than cane sugar. It is also reported to promote a healthy adrenal response to stress. Used for respiratory infections, digestion and healthy mood.

What sets Harker Herbals apart

Other brands

Liquid bioavailability

Liquid herbal formats are fast and easy to absorb compared with capsules or tablets.

Liquid bioavailability Liquid bioavailability
Rare

Multi-herbal formula with plant extracts

Complex blends combining multiple herbs and high-quality plant extracts that work synergistically for broader support.

Multi-herbal formula with plant extracts Multi-herbal formula with plant extracts
Rare

Master-Herbalist formulated

Professionally developed by experienced herbalists using traditional + modern herbal knowledge.

Master-Herbalist formulated Master-Herbalist formulated
Master-Herbalist formulated Master-Herbalist formulated

Non-GMO, Vegan-friendly

Made with clean, naturally derived ingredients and free from unnecessary synthetics or artificial additives.

Non-GMO, Vegan-friendly Non-GMO, Vegan-friendly
Rare

Made in New Zealand in GMP facility

Manufactured to GMP quality standards in New Zealand.

Made in New Zealand in GMP facility Made in New Zealand in GMP facility
Rare*

Ingredients third-party tested

Ingredients are third-party tested for heavy metals, pesticides and verified for authenticity and purity

Ingredients third-party tested Ingredients third-party tested
Ingredients third-party tested Ingredients third-party tested

Rare*

*Rare = Not commonly found in herbal products available in New Zealand

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