Blog
Proprietary Herbal Blend: Why Hidden Amounts Matter
A proprietary herbal blend is a group of ingredients listed under one total weight, with no amount shown for each. It is legal on US labels, but it stops you from comparing doses with research. The ZenCortex panel is a clear example: one 200 mg blend, 22 lines, no single amount.
Written by the ZenCortex label deskUpdated · 4 min read
The term01
What is a proprietary herbal blend?
A proprietary herbal blend is a mix of ingredients that a brand lists under a single name and a single total weight. The recipe split is treated as the brand's own.
The federal labeling rule asks for the blend's total weight on its own line, with the ingredients indented below in order of predominance by weight (eCFR, 21 CFR 101.36 Supplement Facts). The text we read does not require a weight for each ingredient.
So a blend is allowed, and FDA does not approve supplements before sale (FDA, Dietary Supplements). The cost falls on you: you see the order, not the amounts.
Worked example02
What does a proprietary herbal blend look like on ZenCortex?
On ZenCortex, one "Proprietary Herbal Blend" weighs 200 mg per 1 mL dropper and holds 22 named lines. Chromium sits outside the blend with its own amount, 0.7 mcg.
Because lines go from most to least, line 1 (maca) can weigh at most 200 mg and line 22 (L-carnitine) at most 9.1 mg. An even split would be 200 divided by 22, or about 9.1 mg each.
The bar below cuts the blend into 22 equal parts. It is an illustration, not a measurement.
The ceilings cannot all be true together. Added up, they come to about 738 mg, nearly four times the printed 200 mg.
What you lose03
Why do hidden amounts in a blend matter?
Hidden amounts matter because research is written in milligrams. Without an amount, you cannot tell whether a line is near a studied dose or far below it.
A study might use hundreds of milligrams of one extract. A dropper that shares 200 mg across 22 lines cannot hold that much of most of them. The label does not let you check either way.
Safety works the same way. A caution about caffeine or bleeding depends on how much is present, and a blend hides it. That is why we read every line against the cited pages in our ingredients guide.
ZenCortex: from $49 a bottle60 mL drops · 2, 3 or 6 bottles · free US shipping on 3 and 6 · 60-day guarantee
See packsWhat to do04
How can you judge a proprietary herbal blend?
Judge a blend by the facts the label does give: the total, the order, the count and the lines outside the blend. Then ask the seller for the rest.
| Item | Shown on ZenCortex |
|---|---|
| Blend total | Yes, 200 mg |
| Ingredient order | Yes, 22 lines |
| Each amount | No |
| Lab report | Not printed |
Ask the order desk at +1 (380) 868-3839 for per-line amounts, and write down the answer. The lot references on the seller's pages are references, not lab proof ZEN-26/TH-7233. See our Supplement Facts guide and testing page.
Keep taking prescribed medicine as directed, and show the whole label to your pharmacist.
Order ZenCortex: the buttons open the info page checkout
Info page prices, October 19, 2026 (ZenCortex info page). A 2-bottle pack is $158 plus shipping. The seller states a 60-day money-back guarantee. Compare all the packs.
For single lines, read the posts on maca root and the amino acids.
FAQ05
ZenCortex questions people ask
Is a proprietary herbal blend legal on a supplement label?
Yes. The federal rule lets a blend show its total weight with the ingredients listed in order of weight, and the text we read does not require each amount. Legal, though, does not mean you can check the doses.
Why do brands use a proprietary herbal blend?
Brands often say it protects the recipe, and we found no statement from this seller. For you, the effect is that doses cannot be compared across brands or with study amounts.
Can an ingredient in a blend be present in a tiny amount?
Yes. The order shows rank, not size, so a late line can be very small. On the ZenCortex panel, line 22 can weigh at most 9.1 mg, though most lines could weigh far less.
How many ingredients are in the ZenCortex blend?
The blend has 22 lines, from maca to L-carnitine. Chromium is listed separately outside the blend. The seller info page says "over 20 carefully-selected ingredients", which matches the count of chromium plus 22.
Who wrote this06
Written and reviewed by
Pages built from the label, the sales page and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is run by Thezencortex, a retailer of ZenCortex, not by the manufacturer. We earn money when you buy through our order links.
Keep reading
More about ZenCortex
USA Authorized Zencortex Retailer
Ready to try ZenCortex?
Check your medicines first, then pick 2, 3 or 6 bottles. More bottles lower the price per bottle, and the 3- and 6-bottle packs ship free in the US. The buttons open the info page's checkout, and the seller states a 60-day money-back guarantee.
- Checkout by BuyGoods
- 60-day guarantee
- Free US shipping on 3 and 6 bottles