The 600 mg blend
The PureLung Proprietary Blend: What 600 mg Does and Does Not Tell You
PureLung prints one number for its formula, 600 mg per serving of 2 capsules, and eleven names under it. Names in a blend must be listed from the heaviest to the lightest, so each name has a ceiling: the first weighs at least about 55 mg, and the last no more than about 55 mg. The real amounts are not printed.
Written by the PureLung label deskUpdated
The term01
What is a proprietary blend?
A proprietary blend is a group of ingredients listed together under one total weight. The maker does not have to say how much of each one is inside.
FDA's rule is that the names inside a blend appear in descending order of weight (FDA, Q&A on Dietary Supplements). That is the only built-in clue. A maker may choose this format to protect a recipe. The effect for the reader is that you cannot tell whether a name is present at a useful amount or only a trace.
| Question | Clear label | PureLung blend |
|---|---|---|
| Is each amount printed? | Yes | No |
| Can you compare it with a study? | Yes | Not directly |
| Can a pharmacist judge interactions? | Better | Only by name |
| Is the total printed? | Yes | Yes, 600 mg |
The math02
What can the weight order tell you?
Quite a lot, but only as limits. If eleven names share 600 mg and are listed from heaviest to lightest, the first must weigh at least 600 divided by 11, about 54.5 mg. The second can weigh at most half of 600, because the first is at least as heavy. The third at most a third, and so on.
So the n-th name weighs at most 600 divided by n. That gives these ceilings: 600, 300, 200, 150, 120, 100, 85.7, 75, 66.7, 60 and 54.5 mg. They are the most each name could weigh, not what it does weigh.
| Name on the label | Most it could weigh (per serving) | What it is usually sold for | Lung benefit shown in a trial of this capsule |
|---|---|---|---|
| 1. Himalayan Pink Salt | 54.5 to 600 mg | Used as a seasoning; marketed in lamps, inhalers and salt rooms | None found in the sources we read |
| 2. Cinnamon Extract | 300 mg | Studied mostly for blood sugar; marketed for general wellness | None found in the sources we read |
| 3. AGP Choline | 200 mg | Sold for memory and focus | None found in the sources we read |
| 4. Bacopa Monnieri (20%) | 150 mg | Sold for memory and focus | None found in the sources we read |
| 5. Lutein (5%) | 120 mg | Sold for eye health | None found in the sources we read |
| 6. Bilberry Leaf Powder | 100 mg | Berry is sold for eye health; leaf is used in herbal teas | None found in the sources we read |
| 7. Vitamin B6 (as Pyridoxine) | 85.7 mg | Needed in small amounts for normal metabolism | None found in the sources we read |
| 8. Ginkgo Biloba Powder | 75 mg | Sold for memory and circulation | None found in the sources we read |
| 9. Vitamin B12 (as Cyanocobalamin 1%) | 66.7 mg | Needed in small amounts for blood and nerves | None found in the sources we read |
| 10. Zeaxanthin (5%) | 60 mg | Sold for eye health | None found in the sources we read |
| 11. Green Tea Extract (50%) | 54.5 mg | Sold for general wellness and weight control | None found in the sources we read |
Studies vs the label03
What does that mean for ginkgo, bacopa and green tea?
It means the amounts in studies can be compared only loosely with the ceilings. A ginkgo trial may use 120 to 240 mg a day of a standardized leaf extract (NCCIH, Ginkgo). In PureLung, ginkgo biloba powder is eighth on the list, so it cannot weigh more than 75 mg per serving, and it is a powder, not necessarily an extract. Green tea extract is last, so it cannot weigh more than 54.5 mg (NCCIH, Green Tea).
Bacopa, fourth, cannot exceed 150 mg (LiverTox, Bacopa monnieri). Studies on bacopa for memory used larger daily doses of standardized extract. These comparisons do not prove the capsule is weak or strong. They show why nobody can promise a result from a study of a single name.
The bars above show the largest each name could be. A name could be far smaller. Never read a bar as a dose.
PureLung: 60 capsules a bottlePacks of 1, 3 or 6 bottles · live price shown at checkout · guarantee as printed on the live listing
See packsReasons04
Why do some makers use blends, and what should you ask?
Makers say a blend protects a formula from copying. It can also hide small amounts. Neither motive is proven here, and we do not claim either for PureLung.
A buyer can still ask three questions. Can the seller share a spec sheet or a certificate of analysis? Is the lab named? Do the amounts match the claims on the page? FDA says the maker is responsible for the safety of a supplement and for the truth of its claims (FDA, FDA 101: Dietary Supplements). If a seller will not answer, that tells you something.
- Ask the order desk for each amount, in writing.
- Ask for the CoA and the name of the lab. See batch verify.
- Ask a pharmacist to review the names against your medicines. See medicine safety.
Bottom line05
Where does the blend leave you as a buyer?
You can read the names and the total. You cannot read the doses. That is enough to look for interactions by name, and not enough to judge whether the capsule can do what its front says.
The sensible step is to treat the claims as unproven, keep your medicines, and use the label for safety rather than for hope. The how it works page and the claims vs evidence page carry the rest.
FAQ06
PureLung questions people ask
What is the total weight of the PureLung blend?
600 mg per serving of 2 capsules, listed as one Proprietary Blend.
How much cinnamon extract is in PureLung?
The label does not say. It is second in the list, so it cannot weigh more than 300 mg per serving.
Which ingredient is the most plentiful?
Himalayan pink salt, because it is listed first, but its weight is unknown. It is at least about 55 mg and at most 600 mg.
Is a proprietary blend illegal?
No. It is allowed if the names are listed in weight order and the total is printed (FDA, Q&A on Dietary Supplements).
Why do percentages appear in brackets?
The label prints figures like 20% and 50% beside some names without saying what they measure. They likely show extract strength, but that is not confirmed.
Can I get the exact amounts?
Ask the order desk. A seller may share a spec sheet. We have not been given one.
Does a blend mean the product is unsafe?
Not by itself. It means you have less information to judge safety, so check names against your medicines.
Who wrote this07
Written and reviewed by
Pages built from the label images, seller information and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site for a U.S. authorized retailer for PureLung. It is not the manufacturer or the distributor named on the label. We earn money when you buy through our order links.
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