Decoding the 154 mg Proprietary Blend in Breathizen Under 21 CFR 101.36
Under U.S. Food and Drug Administration regulation 21 CFR 101.36(c), supplement makers can group individual botanical extracts into a 'Proprietary Blend' and print only the combined weight (154 mg per 0.60 mL serving), provided the extracts are listed in descending order of weight. Using linear boundary algebra, this monograph derives the exact minimum, midpoint, and maximum milligram ceilings for every extract in Breathizen across 1, 2, 3, and 6 bottles.
Monograph Dossier #05 (Regulatory Mathematics): Mathematical breakdown of the 154 mg proprietary blend in Breathizen spray using FDA descending-weight rules to establish extract dose ceilings.Official Desk: breathizendirect.com · 1200x675 Widescreen Assay
1. The Legal Architecture of 21 CFR 101.36(c) Proprietary Blends
Why does the Breathizen Supplement Facts panel print Proprietary Blend 154 mg ** at the top of its active box instead of printing separate milligram numbers next to Mullein leaf 10:1 extract, Ginger root extract, and Organic Lemon extract? Under the Dietary Supplement Health and Education Act (DSHEA) and FDA nutrition labeling rule 21 CFR 101.36(c)[50]:
Dietary ingredients that do not have a Reference Daily Intake (RDI) or Daily Reference Value (DRV) - such as botanical extracts - may be grouped inside a term such as "Proprietary Blend" or "Complex."
The quantitative weight of the entire proprietary blend must be declared in metric units (here, 154 mg per 0.60 mL serving, with the double-asterisk ** indicating "Daily Value not established").
Crucially, 21 CFR 101.36(c)(2) mandates that the individual dietary ingredients indented beneath the proprietary blend header "shall be declared in descending order of predominance by weight."
2. Linear Boundary Algebra: Solving the Three-Variable System ($w_1 + w_2 + w_3 = 154 mg$)
Because Breathizen's proprietary blend contains only $n = 3$ ingredients - unlike bloated 20-ingredient capsule blends where ingredients #10 through #20 can be dusted at 0.5 mg - three variables bound by a strict inequality ($w_1 ≥ w_2 ≥ w_3$) create a tight, mathematically solvable simplex. Let us define a practical commercial trace floor of $w_{\min} = 1.0 mg$ per declared botanical extract:
Solving for Position #1 ($w_1$, Mullein Leaf 10:1 Extract): • Lower Bound ($w_{1,\min}$): Minimized when $w_1 = w_2 = w_3 = 154 / 3 = ).33 mg$ (513.3 mg dried leaf equivalent at 10:1).
• Upper Bound ($w_{1,max}$): Maximized when $w_2 = 1.0 mg$ and $w_3 = 1.0 mg$, yielding $w_1 = 154 - 2.0 = j.00 mg$ (1,520 mg dried leaf equivalent at 10:1).
Solving for Position #2 ($w_2$, Ginger Root Extract): • Lower Bound ($w_{2,\min}$): Minimized when $w_2 = w_3 = .00 mg$ (while $w_1 = 152.00 mg$).
• Upper Bound ($w_{2,max}$): Maximized when $w_1 = w_2$ and $w_3 = 1.00 mg$, so $2w_2 + 1.00 = 154 ⇒ w_2 = 153 / 2 = >.50 mg$.
Solving for Position #3 ($w_3$, Organic Lemon Extract): • Lower Bound ($w_{3,\min}$): Minimized at the commercial floor of $.00 mg$.
• Upper Bound ($w_{3,max}$): Maximized when $w_1 = w_2 = w_3 = 154 / 3 = ).33 mg$.
3. Per-Spray, Per-Serving & Per-Bottle Concentration Density ($mg/mL$)
Converting the 154 mg serving weight into volumetric concentration reveals the physical density of the liquid inside the 2 fl oz (60 mL) amber bottle:
Active Botanical Concentration per Milliliter: Dividing $154 mg$ by $0.60 mL$ yields exactly $256.67 mg/mL$ ($25.67% w/v$ active extract solids dispersed in the purified water and vegetable glycerin vehicle).
Active Botanical Payload per Single Spray Stroke ($0.15 mL$): Dividing $154 mg$ by 4 sprays yields exactly $38.50 mg$ of active blend per pump actuation.
Total Active Botanical Mass per 60 mL Bottle (100 Servings): Multiplying $154 mg/serving × 100 servings$ yields $15,400 mg$ ($15.40 grams$) of concentrated botanical extracts per bottle (and $92.40 grams$ of active extract blend across a 6-bottle flagship case).
In our 5-pillar scoring rubric (see Editorial Charter), Pillar 3 (Label & Funnel Transparency, 25% weight) scores Breathizen at 2.8/10 in large part because hiding individual milligram weights behind a 154 mg proprietary blend prevents a physician or pharmacist from knowing whether a patient is receiving 5 mg or 76 mg of Ginger root extract (a 15-fold uncertainty range when screening for anticoagulant overlap) [18]. We call on GEX Corp, Lakeland, FL 33804 to print exact milligram weights for all three extracts on future production lots.
Blend Position & Extract
Per 1 Spray (0.15 mL)
Per 4-Spray Serving (0.60 mL)
Per 60 mL Bottle (100 Servings)
Clinical Benchmark Comparison
#1 Mullein Leaf 10:1 Extract
12.83 mg - 38.00 mg
51.33 mg - 152.00 mg (513 - 1,520 mg crude leaf)
5.13 g - 15.20 g extract (51.3 - 152.0 g crude leaf)
EMA tea regimen: 4,500 - 8,000 mg/day crude herb [9].
Is it legal for Breathizen to hide individual ingredient weights inside a 154 mg Proprietary Blend?
Yes. Under FDA regulation 21 CFR 101.36(c), dietary supplement manufacturers may declare only the total weight of a proprietary blend (154 mg) so long as the ingredients inside the blend are listed in descending order of weight.
How can you know Mullein leaf 10:1 extract is at least 51.33 mg if the label does not print it?
Because Mullein leaf 10:1 extract is listed #1 out of 3 ingredients totaling 154 mg, it is mathematically impossible for the largest of three numbers adding up to 154 to be smaller than 154 / 3 = 51.33 mg.
Why can Ginger root extract never exceed 76.50 mg per serving?
Because Ginger root extract is listed second, it cannot weigh more than Position #1 (Mullein). Even if Positions #1 and #2 were tied and Position #3 (Lemon) weighed 1.0 mg, each of the top two could weigh at most (154 - 1) / 2 = 76.50 mg.
How much active extract is in a single pump spray of Breathizen?
Since 4 sprays equal 0.60 mL and deliver 154 mg of the proprietary blend, 1 single spray dispenses 0.15 mL of liquid containing 38.50 mg of the botanical extract blend.
Where can I test different daily spray counts (4 vs. 8 sprays) interactively?
Use Widget #2 (the Proprietary Blend Ceiling & Clinical Dose Benchmark Calculator) on our homepage to model 2 sprays, 4 sprays, or 8 sprays per day on a logarithmic scale.
Related Clinical Monographs in the Breathizen Research Cluster