Lung & Respiratory Supplements

Serrapeptase Supplement
Respiratory Health
Hair Skin and Nails
Bone & Joint

From
$19.95
Marshmallow Root Supplement
Gut Health
Hair Skin and Nails
Respiratory Health

From
$19.95
Mullein Leaf Extract Supplement
Respiratory Health
Antioxidants
Immune Health

From
$19.95
Quercetin Supplement
Immune Health
Antioxidants

From
$24.95
Zinc Picolinate Supplement
Immune Health
Heart & Vessels

From
$19.95
Vitamin D3 + K2 Liquid Drops
Immune Health
Bone & Joint
Hormone Balance

From
$19.95
N-Acetyl Cysteine (NAC) Supplement
Liver Health
Antioxidants
Brain Health

From
$29.95
Apigenin Supplement
Sleep
Antioxidants
Anxiety & Stress

From
$24.95
Lactoferrin Supplement
Gut Health
Antioxidants

From
$26.95
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Keto ACV Gummies
Immune Health

From
$19.95
Luteolin Supplement
Antioxidants
Heart & Vessels

From
$19.95
Sulforaphane Supplement
Heart & Vessels
Gut Health

From
$19.95
Adrenal Support Drops
Hormone Balance
Anxiety & Stress

From
$19.95
Mullein Leaf Drops
Respiratory Health

From
$19.95
Tiger Milk Mushroom Supplement
Respiratory Health
Immune Health
Antioxidant

From
$19.95

Overview

Respiratory health is shaped by environmental exposures, immune function, and the integrity of the mucosal lining of the airways. Double Wood's respiratory health collection includes proteolytic enzymes, antioxidants, and botanical extracts that support airway clearance, reduce oxidative burden in lung tissue, and reinforce the mucosal immune barrier. All products are single-ingredient and third-party tested, making them suitable for individuals looking to complement a pulmonologist's recommendations or support everyday lung wellness.

What To Look For

Key ingredients in this category address respiratory health through different mechanisms. Serrapeptase is a proteolytic enzyme with mucolytic and fibrinolytic properties, studied for airway clearance and sinus health. NAC (N-Acetyl Cysteine) is one of the most established respiratory supplements — it is the precursor to glutathione and also directly thins mucus secretions. Magnesium Chloride supports bronchial smooth muscle relaxation. Mullein Leaf has a long traditional use in lung health and is studied for its expectorant and soothing properties. Apigenin and Luteolin are flavonoids with anti-inflammatory effects relevant to airway health. Tiger Milk Mushroom is an emerging ingredient with clinical research specifically focused on respiratory support and immune function.

Frequently Asked Questions

What supplements are good for lung health?

NAC and Serrapeptase are the two most evidence-backed options for active respiratory support. NAC is both a mucolytic and a glutathione precursor, making it relevant for airway clearance and antioxidant protection in lung tissue. Serrapeptase has been studied for reducing mucus viscosity and supporting sinus health. Mullein Leaf and Tiger Milk Mushroom are traditional and emerging options, respectively, for general lung wellness. They can be paired for broader coverage.

What is Serrapeptase and how does it help with respiratory health?

Serrapeptase is a proteolytic enzyme originally isolated from the digestive tract of silkworms. It breaks down non-living proteins, including excess mucus and fibrin. In the context of respiratory health, it is studied for reducing mucus viscosity, supporting sinus drainage, and reducing inflammatory proteins in airway tissue. It should be taken on an empty stomach for best results.

Is NAC safe for long-term use?

NAC has a well-established safety profile and is used in clinical settings (including as a standard of care for acetaminophen overdose and in some respiratory conditions). For general supplementation, most research on daily use spans 3-6 months without adverse effects. As with any supplement, it is advisable to cycle periodically and consult a healthcare provider if you have underlying lung or liver conditions.

- All Double Wood supplements are single-ingredient, third-party tested for purity and potency, and manufactured in cGMP-certified U.S. facilities. Certificates of Analysis are available for every product.