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Proprietary Blend Supplements: Why Amounts Are Hidden
A proprietary blend supplement is a mix of ingredients listed under one combined weight, with no amount for each part. FDA rules allow this but require the parts to be listed from most to least by weight. Stallion Power prints one 82 mg blend with nine ingredients.
Written by the Stallion Power label deskUpdated · 5 min read
Definition01
What is a proprietary blend in a supplement?
A proprietary blend is a group of ingredients that share one line and one total weight on the Supplement Facts panel.
The brand keeps each ingredient's own amount private. Under federal rule 21 CFR 101.36, the parts must be listed in descending order of predominance by weight, and only the blend's total weight is shown (21 CFR 101.36 (proprietary blends)).
The reason02
Why are the amounts hidden?
Brands say the recipe is a trade secret, and the rule permits it.
The cost falls on the buyer. You cannot compare a hidden amount with a studied dose, so you cannot tell whether an ingredient is present in a meaningful quantity. Reviewers of marketed ED supplements found that most blends use negligible doses (Petre 2023, ED supplements review).
| Shown | Hidden |
|---|---|
| Total weight of the blend (82 mg here) | Each ingredient's own amount |
| Order of ingredients, heaviest first | How big the gaps between lines are |
| Any amount the brand chooses to print (caffeine, 5 mg) | Whether a line is a trace or a major share |
Example03
What does the Stallion Power blend show?
It shows an 82 mg blend with nine lines: muira puama, maca, catuaba, green tea, caffeine (5 mg), ashwagandha, L-arginine, tribulus and horny goat weed.
Caffeine is printed, and it is fifth. The four lines after it can weigh 5 mg each at most. Our arithmetic gives the L-arginine ceiling as 5 mg, while ED trials used 1,500 to 5,000 mg a day (Rhim 2019, arginine and ED meta-analysis). These figures are not lab results.
Stallion Power: from $49 a bottle30 gummies · 2, 3 or 6 bottles · free shipping on 3 or 6 · 60-day guarantee
See packsHonesty04
Is a proprietary blend dishonest?
No, it is legal, but it limits what a buyer can check.
The FTC says health claims need competent and reliable scientific evidence, and research on other doses or extracts may not support the product on sale (FTC, Health Products Compliance Guidance). A blend with hidden amounts makes that match harder to judge.
Read the Supplement Facts page and our label vs sales page check.
What to do05
How should you shop for blends?
Prefer labels that print each amount, and treat hidden amounts as unknowns, not as strengths.
Ask a doctor or pharmacist about medicines. Keep taking prescribed medicine as directed. FDA has found hidden drugs in some male enhancement products (FDA, Tainted sexual enhancement products); we have not tested this gummy.
Want to try Stallion Power? Both packs ship free, and both come with the 60-day guarantee (all bottles returned, even empty ones).
Prices on the sales page, October 18, 2026 (Stallion Power sales page). Check your medicines with your doctor first.
FAQ06
Proprietary blend questions
Is a proprietary blend legal?
Yes. FDA rules allow a blend to show one total weight if the ingredients are listed in descending order by weight (21 CFR 101.36 (proprietary blends)). Legal does not mean easy to check.
Does a proprietary blend mean low doses?
Not always, but it can hide them. A review of marketed ED supplements found most blends use negligible doses of each ingredient (Petre 2023, ED supplements review). Ask for amounts you can compare with studies.
What is the weight order rule for blends?
Ingredients must be listed from most to least by weight (21 CFR 101.36 (proprietary blends)). That lets readers set ceilings, such as the 5 mg limit on lines listed after Stallion Power's 5 mg caffeine.
Who wrote this07
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 Stallionpowermen, a USA stocking retailer for Stallion Power, not by the manufacturer or the distributor. We are paid a commission when you buy through our order links.
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