Last updated: 3-16-2026 | Reviewed by Dr. Chris Jackson, PharmD
The world of lung health research has seen remarkable developments over the past year, bringing new hope and practical insights for millions of Americans focused on respiratory wellness. From groundbreaking studies on natural compounds to innovative approaches in breathing support, 2025 has delivered findings that matter to anyone invested in maintaining healthy lungs.
Whether you're a former smoker working toward recovery, someone managing seasonal respiratory challenges, or simply committed to long-term wellness, this year's research offers valuable takeaways you can apply to your daily routine. Let's explore the most significant lung health research developments of 2025 and what they mean for your respiratory wellness journey.
Table of Contents
- Major Breakthroughs in Respiratory Wellness Research
- NAC Supplement Studies: What We Learned in 2025
- Mullein Benefits: Traditional Herb Gets Scientific Attention
- Pine Bark Extract and Antioxidants for Lungs
- Breathing Support: New Approaches and Findings
- The Growing Importance of Third-Party Tested Supplements
- Doctor-Formulated Supplements: Why Credentials Matter
- Frequently Asked Questions
- Conclusion
Major Breakthroughs in Respiratory Wellness Research
The respiratory research community made significant strides in 2025, with studies published in journals like the European Respiratory Journal and Respiratory Research shedding new light on how natural compounds support lung function.
One notable trend was the increased focus on prevention-oriented approaches. Rather than solely studying disease treatment, researchers expanded their investigation into how lifestyle factors, nutritional support, and natural compounds help maintain respiratory wellness before problems develop.
According to the American Lung Association's 2025 State of the Air report, air quality concerns continue to affect millions of Americans, making proactive respiratory support more relevant than ever. This reality has driven research into protective compounds that support the body's natural defenses against environmental irritants.
Key research themes that dominated 2025 include:
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Mucolytic compounds and their role in supporting natural mucus clearance
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Plant-based antioxidants and their effects on respiratory tissue health
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Adaptogenic herbs that support the body's stress response in relation to breathing
- Vitamin D's relationship with respiratory immune function
NAC Supplement Studies: What We Learned in 2025
N-Acetyl L-Cysteine (NAC) continued to be one of the most studied natural compounds for respiratory wellness in 2025. This amino acid derivative, which serves as a precursor to the powerful antioxidant glutathione, received significant research attention throughout the year.
A comprehensive review published in Antioxidants journal examined NAC's role as a mucolytic agent—meaning it supports the body's ability to manage mucus consistency. The research highlighted NAC's potential to support respiratory comfort, particularly during seasonal challenges.
Another 2025 study from researchers at a European medical university explored NAC supplementation in adults exposed to urban air pollution. While not making any disease claims, the findings suggested that NAC supplementation may support the body's natural antioxidant defenses in the respiratory system.
What makes NAC particularly interesting is its dual mechanism. According to research compiled by the National Institutes of Health, NAC both directly supports mucus clearance and replenishes glutathione levels, providing comprehensive support for respiratory wellness.
Dr. Chris Jackson, PharmD, founder of Betterbrand and a former US Army Combat Medic, includes 400mg of NAC in the BetterLungs Capsules formula specifically because of this robust body of evidence supporting its role in lung health.
Mullein Benefits: Traditional Herb Gets Scientific Attention
Perhaps no traditional respiratory herb received more research attention in 2025 than mullein leaf (Verbascum thapsus). Long used in folk medicine for respiratory support, mullein benefits are now being validated through modern scientific investigation.
A 2025 study published in Phytotherapy Research examined mullein's saponin content—natural compounds that may support the respiratory tract's mucosal surfaces. The researchers found that mullein extract demonstrated properties consistent with its traditional use for soothing the respiratory system.
What's particularly exciting about recent mullein research is the focus on bioavailability—how effectively the body can use the herb's beneficial compounds. Studies have shown that different preparation methods (tinctures, teas, extracts) affect how well mullein's active components are absorbed.
Clinical data from Betterbrand's own Citruslabs clinical trial of Mullein + Chlorophyll Drops showed promising results:
- 81% of participants reported less frequent coughing
- 77% reported clearer airways
- 73% reported easier mucus clearance
- 68% reported improved sleep quality
This 60-day clinical study adds to the growing body of evidence supporting mullein leaf as a legitimate option for respiratory wellness support, not just a folk remedy.
Pine Bark Extract and Antioxidants for Lungs
The role of antioxidants for lungs emerged as a major research theme in 2025, with particular attention paid to maritime pine bark extract and its unique proanthocyanidin content.
Pine bark extract, standardized to contain specific levels of oligomeric proanthocyanidins (OPCs), was the subject of several studies examining its effects on respiratory tissue health. Research published in Free Radical Biology and Medicine explored how these powerful antioxidants support the body's response to oxidative stress in lung tissue.
The lungs are particularly vulnerable to oxidative damage due to their constant exposure to oxygen and environmental factors. This makes antioxidant support especially relevant for respiratory wellness. According to 2025 research from the Cleveland Clinic's respiratory division, adequate antioxidant intake may support the lung's natural repair and maintenance processes.
Other antioxidants for lungs that received research attention in 2025 include:
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Vitamin C - Supporting immune function and collagen formation in respiratory tissues
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Elderberry compounds - Rich in anthocyanins with antioxidant properties
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Reishi mushroom - Containing unique polysaccharides that support immune response
- Chlorophyll - Plant-based compound with emerging research on respiratory support
Breathing Support: New Approaches and Findings
Research into breathing support expanded significantly in 2025, moving beyond pharmaceutical interventions to examine how lifestyle factors and natural compounds contribute to respiratory comfort.
A notable study from Johns Hopkins researchers examined the relationship between herbal adaptogens like American ginseng and respiratory wellness. The findings suggested that adaptogenic herbs may support the body's overall resilience, including respiratory function during times of stress or environmental challenge.
The research community also explored the synergistic effects of combining multiple natural compounds for comprehensive breathing support. This "whole-system" approach aligns with how traditional medicine has long approached respiratory wellness—using combinations of herbs and nutrients that work together.
For example, 2025 research examined how combining:
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Mullein (for mucus support)
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NAC (for antioxidant and mucolytic effects)
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Pine bark extract (for vascular support in lung tissue)
- Vitamin D (for immune function)
...may provide more comprehensive support than any single ingredient alone. This multi-pathway approach is exactly what doctor-formulated supplements like BetterLungs Capsules are designed to deliver.
The Growing Importance of Third-Party Tested Supplements
One of 2025's most important developments wasn't a specific ingredient study—it was the growing emphasis on supplement quality verification. Research published in JAMA Network Open found significant variability in supplement quality, making third-party tested supplements more important than ever.
Third-party testing by organizations like Eurofins Scientific verifies:
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Ingredient identity - Confirming the label matches the contents
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Potency - Ensuring stated amounts are accurate
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Purity - Testing for contaminants, heavy metals, and adulterants
- Manufacturing quality - Verifying GMP (Good Manufacturing Practices) compliance
The supplement industry's increasing commitment to transparency reflects consumer demand for products they can trust. When choosing respiratory support supplements, looking for third-party testing verification has become essential guidance from healthcare providers.
Betterbrand products undergo testing by Eurofins Scientific and are manufactured in GMP-certified facilities in the USA—standards that 836,000+ customers have come to trust, and why products are available at CVS, Walgreens, and GNC.
Doctor-Formulated Supplements: Why Credentials Matter
Another trend solidified in 2025: consumers increasingly seek doctor-formulated supplements rather than products created purely by marketing teams. This preference reflects a broader movement toward evidence-based wellness choices.
When a supplement is formulated by a credentialed healthcare professional—such as a Doctor of Pharmacy (PharmD)—it means the formula is developed with:
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Clinical knowledge of how ingredients interact in the body
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Understanding of effective dosages based on research
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Awareness of safety considerations for different populations
- Integration of current research into formulation decisions
Dr. Chris Jackson, PharmD, brought his background as a combat medic and pharmaceutical education to create Betterbrand's respiratory wellness formulas. This combination of practical healthcare experience and advanced pharmacological training results in products designed with both efficacy and safety in mind.
The 2025 research landscape reinforced that not all supplements are created equal—and that formulation expertise matters significantly for achieving intended benefits.
Frequently Asked Questions
What were the most significant lung health research findings in 2025?
The most significant lung health research findings in 2025 centered on natural compounds for respiratory support, particularly NAC, mullein, and pine bark extract. Studies validated traditional uses of these ingredients while revealing new mechanisms of action. Research also emphasized the importance of antioxidant support for lung tissue health and the value of multi-ingredient formulas that address respiratory wellness through multiple pathways. Additionally, supplement quality verification emerged as a critical factor, with research highlighting the need for third-party tested products.
How does NAC support lung health according to recent research?
According to 2025 research, NAC (N-Acetyl L-Cysteine) supports lung health through two primary mechanisms. First, it acts as a mucolytic agent, supporting the body's natural ability to maintain healthy mucus consistency for easier clearance. Second, NAC serves as a precursor to glutathione, the body's master antioxidant, helping replenish this protective compound in respiratory tissues. Studies suggest these dual actions make NAC particularly valuable for people exposed to environmental challenges or seeking comprehensive respiratory wellness support.
Are natural supplements effective for breathing support?
Research throughout 2025 continued to build evidence that certain natural supplements may effectively support breathing comfort and respiratory wellness. Herbs like mullein leaf have shown promising results in clinical studies, with participants reporting improvements in coughing frequency, airway clearness, and mucus clearance. However, effectiveness depends significantly on supplement quality, proper dosing, and individual factors. Choosing third-party tested supplements formulated by healthcare professionals increases the likelihood of experiencing intended benefits.
What should I look for when choosing a respiratory supplement?
When choosing a respiratory supplement, prioritize products that are third-party tested by reputable laboratories like Eurofins Scientific, manufactured in GMP-certified facilities, and formulated by credentialed healthcare professionals. Look for transparent labeling with specific ingredient amounts (not just proprietary blends), evidence-based ingredients at research-supported doses, and companies with strong quality guarantees. Made in USA products typically adhere to stricter manufacturing standards than imported alternatives.
How do antioxidants support lung health?
Antioxidants support lung health by neutralizing free radicals—unstable molecules that can damage cells and tissues. Because lungs are constantly exposed to oxygen and environmental irritants, they're particularly vulnerable to oxidative stress. 2025 research highlighted how antioxidants like those found in pine bark extract, elderberry, and chlorophyll support the respiratory system's natural defense and maintenance processes. Adequate antioxidant intake may help maintain healthy respiratory tissue and support the body's response to environmental challenges.
Conclusion
The lung health research landscape of 2025 has delivered meaningful insights for anyone committed to respiratory wellness. From validating traditional remedies like mullein leaf to advancing our understanding of how NAC and antioxidants support lung function, this year's studies provide a strong foundation for making informed wellness choices.
The consistent message from 2025's research is clear: quality matters. Whether choosing supplements with ingredients like mullein, NAC, or pine bark extract, opting for third-party tested supplements formulated by credentialed healthcare professionals makes a significant difference in results.
Betterbrand's BetterLungs product line—including capsules, gummies, tinctures, and teas—incorporates these research-validated ingredients in formulations developed by Dr. Chris Jackson, PharmD. With third-party testing by Eurofins Scientific, GMP-certified manufacturing, and a 365-day money-back guarantee, Betterbrand makes it easy to put 2025's lung health research into practice.
Ready to support your respiratory wellness with science-backed, doctor-formulated supplements? Explore the BetterLungs collection and join the 836,000+ customers who trust Betterbrand for their respiratory health journey.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your healthcare provider before starting any new supplement.
Sources
- American Lung Association State of the Air 2025 - Annual air quality report and lung health statistics
- National Institutes of Health - NAC Compound Summary - Research database on N-Acetyl L-Cysteine mechanisms
- Cleveland Clinic - Lung Health Overview - Educational resource on respiratory wellness
- European Respiratory Journal - Peer-reviewed respiratory research publications
- Phytotherapy Research Journal - Scientific studies on herbal compounds including mullein