The key ingredients are listed below:

✅ Mullein Leaf Extract 10:1: The formula’s anchor for mucus clearance and airway soothing. Mullein has been used for respiratory complaints across European and Native American traditions for centuries, and the modern account of why is reasonably well characterized: saponins are credited with the expectorant action that helps loosen mucus, mucilage coats and soothes irritated mucous membranes, and phenylethanoid glycosides such as verbascoside show anti-inflammatory activity in cell studies. A 2022 review in Molecules (27(2):414) collected the phytochemical and pharmacological evidence. Both the European Medicines Agency and the NCCIH classify it as a traditional herbal remedy for respiratory comfort, which describes the evidence level accurately: laboratory, animal, and long traditional use, with human trials still thin. The 10:1 notation means ten parts raw leaf were concentrated into one part extract.

✅ Ginger Root Extract: The most mechanistically documented ingredient here for the airway itself. In research published in the American Journal of Respiratory Cell and Molecular Biology, isolated human airway smooth muscle was contracted in organ baths and then relaxed rapidly by ginger and by its purified constituents 6-gingerol, 8-gingerol, and 6-shogaol, an effect linked to intracellular calcium regulation. Inhaled 8-gingerol also reduced methacholine-induced airway resistance in mice. A companion study found these compounds inhibit PDE4D and amplify beta-agonist relaxation, and a mouse study found whole extract and 6-shogaol lowered house dust mite lung inflammation. The honest framing: a strong and specific mechanism, solid preclinical evidence, and no oral human respiratory trial yet.

✅ Bromelain Powder: A mixture of proteolytic enzymes from pineapple. It breaks down proteins, reduces plasma kininogen and therefore kinin production, and has well documented anti-edema and anti-inflammatory effects, which is why it shows up in post-surgical recovery research. For breathing specifically, the relevant human data sits in the sinuses: a pilot study in chronic rhinosinusitis found it tolerable with symptom improvement signals, and a 62-patient trial in children with acute sinusitis reported resolution in about 6.7 days on bromelain alone versus roughly 8.0 days on standard therapy. In a murine asthma model it lowered airway reactivity and reduced eosinophil and leukocyte infiltration. One practical note: bromelain inhibits platelet aggregation, so raise it with your doctor if you take blood thinners.

✅ Organic Lemon Extract: Contributes vitamin C and citrus flavonoid antioxidants. Vitamin C is the lung’s most relevant water-soluble antioxidant and the epidemiology points consistently in one direction: in the MORGEN study of 6,555 Dutch adults, high vitamin C intake was associated with roughly 53 mL higher FEV1 and 79 mL higher FVC compared with low intake, a Nottingham cohort followed over nine years found higher intake associated with higher FEV1, and a Korean cohort found lower COPD risk in the highest intake group. Read those as dietary pattern associations rather than evidence for a lemon extract in a spray. This is the ingredient with the least direct support in the formula.

✅ Organic Cordyceps militaris Fruit Extract: The adaptogenic component, aimed at oxygen utilization and respiratory stamina rather than the airway. Cordycepin and beta-glucans are the compounds of interest, with preclinical work pointing at mitochondrial ATP pathways and vasodilation. This ingredient carries the strongest quantitative human data in the formula: in a randomized, double-blind, placebo-controlled study of 28 adults, 4 g per day of a C. militaris led mushroom blend for three weeks raised VO2 max from about 44.0 to 48.8 mL/kg/min and extended time to exhaustion by roughly 70 seconds, while one week produced nothing measurable. A 2026 narrative review of five trials in 321 participants found the pattern consistent. Two caveats worth stating plainly: those trials used multi-mushroom blends rather than isolated C. militaris, and gram-level daily doses that a 0.60 mL spray is unlikely to match.