200mg N-Acetyl-L-Cysteine + 300mg Mullein Leaf Extract: The Supplement-Facts Panel, Disclosed By Milligram

Q: Which species of mullein is the extract from, and how is it extracted?

The species disclosed on the supplement-facts panel is Verbascum thapsus, the common European-and-North-American medicinal mullein. The extract is a leaf extract, dosed at 300 mg per 2-capsule serving. Extraction is performed at the manufacturing facility under GMP-compliant procedures.

01 / Opening

Wednesday, 10:42 PM. The Seventh Browser Tab.

He closes it without buying.

He has been on the kitchen island laptop since 9:30. Seven mullein capsule brands open across two windows. The reading-glass magnifier app is still active on his phone from the last brand he tried to read off the listing image. He has had two of those tabs open for nine straight days, refreshing them every other morning hoping the milligram number will appear in a different place this time and answer the only question he actually wants answered.

Which is: how much of the leaf extract is in this capsule. By milligram. Per serving. Stated on the supplement-facts panel, not implied in a marketing paragraph, not lumped into a proprietary blend, not hidden behind the phrase natural respiratory support.

Not one of the seven brands answered it.

Five used the word blend. One listed only the genus name with no extract weight. One had the extract weight as an image-text overlay on a stock photo of a leaf and not on the actual supplement-facts panel. His wife mentioned NAC at dinner Tuesday. Someone on a podcast. It has research behind it, she said, with the tone she uses when an ingredient sounds like a real molecule for once. He has been looking ever since.

This is page eight.

02 / Audience

Who This Document Is Written For

This is not a marketing page. This is a disclosure document. It is written for the buyer who has already decided that supplement-facts panel transparency is the single trust signal he will not compromise on.

If you returned an Amazon mullein bottle last August because the listing image did not mention silicon dioxide and the bottle did, you are who this is written for. If you have a spreadsheet with three competitor supplement-facts panels in three columns and concluded that none of them disclosed the leaf-extract milligram, you are who this is written for.

The people who do not need this document are buyers for whom natural on the front of the bottle is enough. We are not writing for them. We are writing for the person who, when he sees the word proprietary blend, closes the tab.

Ingredient	Per 2-Capsule Serving	Disclosed As
Mullein Leaf ExtractVerbascum thapsus	300 mg[3]	Exact milligram. Not proprietary blend.
N-Acetyl-L-Cysteine (NAC)	200 mg[4]	Exact milligram. Single-ingredient line.
Elderberry ExtractSambucus nigra	150 mg[5]	Exact milligram.
Reishi Mushroom ExtractGanoderma lucidum	100 mg[6]	Exact milligram.
Panax Ginseng Extract	100 mg[7]	Exact milligram.
Vitamin D3 (cholecalciferol)	25 mcg / 1000 IU[8]	Exact dose. Standard maintenance band.

04 / The Standard

Why The Disclosure Itself Is The Trust Signal

There is a thing supplement marketing departments do when the dose is too low to defend.

They write the words proprietary blend on the panel and a single combined milligram total below them. Respiratory Support Blend, 540 mg, with eight ingredients listed underneath in fine print and no individual weights. The buyer reading the panel cannot know whether the lead ingredient is 535 mg and seven trace inclusions ride on top, or whether the lead ingredient is 30 mg and the panel is 510 mg of filler herbs nobody dosed for effect.

For a label-reader, the proprietary blend is the tell.

A brand that has confidence in its formulation publishes the milligram. A brand that does not, hides behind the blend. There is no third option. The disclosure is the proof, because the disclosure is the thing that takes confidence to do and costs nothing to skip.

The supplement-facts panel above is published in full. Six ingredients. Six exact milligram weights. The Other Ingredients line, all three of them, in the same font size as the rest of the label. The thing the marketing department would have to hide to make the formulation look stronger is not hidden, because the formulation does not need it to be.

05 / NAC, Dosed

What 200 mg Of N-Acetyl-L-Cysteine Means On A Daily Stack

NAC is the ingredient his wife mentioned at dinner.

It is N-Acetyl-L-Cysteine. It is a precursor compound to glutathione, one of the body’s primary intracellular antioxidants. Its history of pharmaceutical and over-the-counter use as a mucolytic compound stretches back roughly five decades. His pharmacist nephew at Thanksgiving gave him a four-minute version of the answer. The four-minute version is consistent with what is on the supplement-facts panel.

The disclosed dose on Mullein & Co. Lung Support Capsules is 200 mg per 2-capsule serving.[11] That is one part of the daily stack a label-reader can verify before he swallows anything. The 200 mg disclosure on this label is the milligram he could not find on the previous six tabs, on the only ingredient his wife had brought up by name.

Notes for the reader who plans further:

If you already keep a standalone NAC bottle in the cabinet, the milligram on this label is published in the same units, so the stack math is yours to do.[11]
If you do not, the 200 mg here is a clear single-source ingredient line, not a blend.[4]
If you intend to discuss any supplement with a clinician, this panel is photographable. The clinician can read it in thirty seconds. That is the entire point of publishing it this way.

06 / Other Ingredients

The Other Ingredients Line, In Full, Three Words Long

This is the part of the bottle where most brands fail a label-reader.

The Other Ingredients section sits below the supplement-facts panel and lists the inactive components: the capsule shell, the carrier, the flow agent. It is also where, historically, ingredients like silicon dioxide, titanium dioxide, magnesium silicate, and maltodextrin get tucked when the front-of-bottle wants to say clean and the manufacturer has cut corners on the fill.

Last August, the buyer returned an Amazon mullein bottle for exactly this reason. The listing image did not mention silicon dioxide. The bottle itself did. He wrote a review titled this would have been a clean product but and rated it one star.

Mullein & Co.’s Other Ingredients line, transcribed letter-for-letter from the bottle:[9]

Vegetable Capsule (Hypromellose). The plant-derived capsule shell. Hypromellose is the standard non-gelatin shell material, vegan-compatible.
Rice Flour. The carrier. Standard, inert, allergen profile is well-documented.
Magnesium Stearate. A flow agent used at trace levels to prevent powder sticking during encapsulation. Standard across the supplement industry. Used here rather than silicon dioxide.

That is the entire list. Three items. Not five. Not eight. Not and other ingredients followed by an ellipsis. The absence of silicon dioxide on this label is not an oversight or a marketing claim. It is on the bottle because it is not in the capsule.[10]

07 / Manufacturing

Where The Bottle Is Made And How That Is Verified

The four label-readable manufacturing facts:[12]

GMP-certified facility. Good Manufacturing Practice is the FDA standard for dietary-supplement facilities. A GMP-certified facility is audited for batch identity, contamination controls, and labeling accuracy. The certification is the floor, not the ceiling, but the floor matters: it is what separates a real supplement operation from a kitchen-table fill.
Third-party tested. Each lot is tested by a laboratory outside the manufacturer’s own four walls. The lot test is what verifies the on-panel milligram weights are actually in the capsule and not just on the marketing copy. A label-reader can request the certificate of analysis for any production lot.
Vegan. No animal-derived ingredients. The capsule shell is hypromellose, not gelatin.
Non-GMO. No genetically modified inputs in the botanical extracts.

The two manufacturing facts that matter most to a label-reader are the first two. A panel that publishes by milligram and a third-party test that verifies the published milligrams are the two halves of the same disclosure. One without the other is half a trust signal.

08 / What Six Tabs Looked Like

Side-By-Side: What His Other Six Tabs Actually Said

A stylized rendition of the comparison spreadsheet the buyer would build himself if he kept one. (He does keep one.)

Field	Brand A	Brand B	Brand C	Brand D	Mullein & Co.
Mullein leaf milligram	proprietary blend	not stated	image overlay only	blend 540mg	300 mg disclosed[3]
NAC milligram	not included	proprietary blend	not included	not included	200 mg disclosed[4]
Other Ingredients line	silicon dioxide listed	silicon dioxide, maltodextrin	not on listing	silicon & titanium dioxide	Hypromellose, Rice Flour, Magnesium Stearate[9]
Third-party test verifiable	not stated	not stated	not stated	not stated	Yes, lot-traceable[12]
Guarantee window	14-day return	not stated	30-day store credit	not stated	30-day money-back[13]

This is what page eight versus pages one through seven actually looks like, line by line. The buyer has already done some version of this comparison in a notebook or a spreadsheet. The columns above are the answers his own document already contains.

09 - 11 / Objections, Answered

Objection 09

Is the supplement-facts panel above the actual one on the bottle, or a marketing version of it?

Same panel. Same ingredients in the same order in the same milligrams. The supplement-facts panel published on the Mullein & Co. product page is the panel on the back of the bottle, in regulatory-compliant format. The first thing to verify when you receive a bottle is the panel against the photograph on the product page. They will match. That is not a marketing claim, it is a regulatory requirement, and it is the standard a label-reader should hold every supplement brand to.

Six ingredients, six milligrams, on both the website panel and the bottle panel
Other Ingredients line is three items on both
No proprietary blend on either
30-day money-back if the bottle you receive does not match the panel shown

Objection 10

Will this interfere with my cardiac maintenance medications, the statin or the blood-pressure tablet?

This is the kind of question the supplement-facts panel was published in full precisely to make easy to answer. Print the panel, take it to your pharmacist or your physician, and the conversation takes about three minutes. The botanical stack (mullein leaf, elderberry, reishi, ginseng) has no widely documented interactions with the most common statins or first-line antihypertensives at the disclosed daily doses. NAC at 200 mg per serving is well below the upper range typically discussed in clinical settings. Vitamin D3 at 1000 IU is a maintenance dose, not a loading dose. The label is the document. The label is what you bring to the appointment.

Every milligram is on the panel, no hidden actives to disclose at the pharmacy counter
Vitamin D3 dose is the standard daily maintenance band
NAC dose is in the supplement category, not the pharmaceutical category
30-day money-back if your clinician advises against starting

Objection 11

Is the multi-bottle bundle pricing actually one-time, or is there a subscription auto-charge hidden in the checkout?

One-time. The bundle math on the product page is published as one-time purchase pricing, not a recurring subscription. Buy 1 is $36.95. Buy 3 is $66.00, which works out to $22.00 per bottle. Buy 6 is $89.00, which works out to $14.83 per bottle. None of those three tiers carry an auto-renewal at checkout. A subscription option is offered separately if a buyer wants one, but it is opted into, not opted out of. The 30-day money-back window covers the first bottle either way.

Tier pricing is one-time, not subscription-locked
Buy 3 effective per-bottle: $22.00
Buy 6 effective per-bottle: $14.83
Subscription is a separate selection, not a default

12 / The Real Mechanism

Why Label-Reading Is The Actual Decision

There is something worth saying out loud about the way the buyer has spent the last nine days.

Label-reading, at a certain depth, is no longer about the label. It is about whether the question is answerable. The buyer cannot know, in advance, whether 200 mg of NAC and 300 mg of mullein leaf extract will do for his own morning chest what he is hoping they will do. That is the uncontrollable question. But he can know which brand was honest about the dose. He can know whether silicon dioxide is on the bottle. He can know whether the manufacturer published the third-party test. He can know whether the Other Ingredients line is three items long or eight items long. Those are the answerable questions, and the answerable questions are where the trust gets built.

The seven tabs at 10:42 PM were not a failure of decisiveness. They were a buyer doing the only honest thing a label-reader can do: refusing to swallow a capsule whose contents he cannot verify on the panel.

This page is written on the assumption that the buyer was right to walk away from the first six. The seventh tab is this one. The disclosure above is the answer he was looking for. If the formulation works for him over the next three weeks, he will buy three more bottles in December. If it does not work, he will know the formula was honest and the question was unanswerable for his particular body. Either of those outcomes is a clean answer. Neither is a wasted tab.

13 / What Other Label-Readers Said

Reviewers Who Read The Panel First, After Receiving The Bottle

These are excerpts from the verified-buyer review pool for this SKU, selected from buyers whose reviews mention checking the supplement-facts panel or the Other Ingredients line before purchase. Identifying details removed.

It’s all organic ingredients and non GMO I’m pretty sure. My breathing has gotten better already. I checked the back of the bottle against the website and they matched.

Verified buyer · Amazon

How am I supposed to trust them when most of these labels are vague. This one wasn’t vague. The Other Ingredients line was three things. That was enough for me to try a bottle.

Verified buyer · Reddit r/COPD comment thread

Was about to return this like the last one but the bottle actually matched the website. No silicon dioxide on the bottle. That was the test I needed to pass.

Verified buyer · Trustpilot

Mullein has always been my go-to. This is the version I’m sticking with because the panel is clean.

Verified buyer · Trustpilot

The aggregate review count and rating displayed on the product page at the time of writing: 45,000-plus reviews at 4.8 stars on average.[14] The volume itself is not the point, the volume is the precondition that lets the buyer find reviews from people whose buying criteria match his own.

14 / FAQ

Frequently Asked Questions From Label-Readers

Which species of mullein is the extract from, and how is it extracted?

The species disclosed on the supplement-facts panel is Verbascum thapsus, the common European-and-North-American medicinal mullein. The extract is a leaf extract, dosed at 300 mg per 2-capsule serving. Extraction is performed at the manufacturing facility under GMP-compliant procedures. The exact extraction ratio is a manufacturer specification a label-reader can request directly via the customer-service channel on the product page if it matters to their particular use case.

Is the NAC pharmaceutical-grade, and where is it sourced?

The NAC ingredient is supplement-grade N-Acetyl-L-Cysteine, dosed at 200 mg per 2-capsule serving. It is produced at a GMP-certified facility and verified by third-party lot testing alongside the other actives on the panel. NAC at supplement doses sits in the over-the-counter dietary supplement category in the United States, not the pharmaceutical category, but the per-lot third-party test verifies the milligram weight on the bottle against the panel.

Is there silicon dioxide in this product?

No. The Other Ingredients line on the bottle reads: Vegetable Capsule (Hypromellose), Rice Flour, Magnesium Stearate. That is the entire list. Silicon dioxide is not on the bottle. Titanium dioxide is not on the bottle. Maltodextrin is not on the bottle. This is the answer in the form a label-reader requires it: the absence is on the published label, not implied by a marketing tagline.

Who performs the third-party testing and how do I see the lot report?

Third-party lot testing is conducted by an independent laboratory contracted by the manufacturer. The lot number on every bottle is traceable to the corresponding certificate of analysis. A buyer who wants the certificate of analysis for the specific lot in his bottle can request it through the customer-service contact on the product page, citing the lot number printed on the bottle. This is the standard practice across GMP-compliant supplement manufacturing in the United States.

Where is the product manufactured?

At a GMP-certified facility, in compliance with the FDA’s Good Manufacturing Practice regulations for dietary supplements. The specific facility identifier is a manufacturer specification available on request through customer service for buyers who need it for personal-record purposes. The GMP certification itself is the audit standard that matters for ingredient identity, contamination controls, and label accuracy.

What happens at week three if I don’t notice anything?

The 30-day money-back guarantee covers the first bottle. Week three is still inside that window. The product page also publishes user-survey figures for the response window: 92% of users in the published survey reported improved daily breathing comfort within the first 2-4 weeks of consistent use, and 89% said mornings felt noticeably different within the first two weeks. The buyer is the final judge of whether the formulation moved anything in his own morning chest. The window is the test.

15 / Guarantee

30-Day Money-Back, On Every Bottle

The first bottle is yours to evaluate for thirty days. If the formulation does not work for you, the brand refunds the order.

No return paperwork required. No doctor’s note. No auto-renewal pull-back to argue with. Print the supplement-facts panel before you receive the bottle. Match it against the bottle on arrival. Take it for three weeks. Make your own decision. The window is yours.

200 mg N-Acetyl-L-Cysteine. 300 mg Mullein Leaf Extract. Disclosed By Milligram, Not By Blend.