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The horny goat weed rowJelly Blue Horny Goat Weed: Is 100 mg Backed by Research?
Horny goat weed benefits for men are mostly discussed from laboratory work, not from trials on this product. Jelly Blue prints 100 mg of horny goat weed extract (Epimedium sagittatum) per gummy, the fifth of seven rows. A 2022 laboratory study of flavonoids is the main published work, and it does not describe a gummy.
The published research on this plant is laboratory work: a 2022 study isolated six of its flavonoids and found three that blocked the PDE5A enzyme in the test tube. There is no human trial dose to set the row against, and this post explains why that matters.
- 100 mg a gummy. Horny goat weed extract is the fifth row, printed on the panel as Horney goat weed, with the Latin Epimedium sagittatum.
- The sixth name. It is on the seller’s six-tile INSIDE JELLYBLUE art but not on the five-circle WHAT IS INSIDE art.
- Laboratory work. The published study measured three flavonoids blocking the PDE5A enzyme in the test tube and changing rat cells.
- No human dose. Without a human trial there is no milligram figure to compare the row against.
- A shelf with a record. 353 sexual enhancement supplements named in FDA warnings over ten years carried undeclared drugs.
The horny goat weed row on the JellyBlue panel
Horny goat weed extract is the fifth of seven actives on the JellyBlue Supplement Facts panel, at 100 mg. The panel spells the common name Horney goat weed; the Latin beside it, Epimedium sagittatum, is correct and is the name to go by. It shares the 100 mg figure with maca and ashwagandha.
It is also the name that shows how the seller’s artwork counts the formula. The five-circle WHAT IS INSIDE graphic leaves it out. The six-tile INSIDE JELLYBLUE graphic adds it. The panel adds one more, beet root, to reach seven, and horny goat weed is on it with its own amount.
Epimedium is a genus of low, leafy plants, and the processed leaf of Epimedium sagittatum has a long history in traditional Chinese medicine. Its best-known compound is a flavonoid called icariin.
What the 2022 laboratory study did
The research that bears on this row is a 2022 laboratory study from Shanghai. It set out to explain, molecule by molecule, why the processed leaf has the reputation it has, and it worked in three stages.
Isolate
Six flavonoids of the 8-isopentenyl type were isolated from the processed leaf and identified as a set for the first time.
Screen and model
An HPLC-based method screened them against PDE5A, the enzyme sildenafil blocks, and a 3D model mapped which parts of each molecule mattered.
Test in cells
The three active compounds raised cGMP and lowered calcium in smooth muscle cells taken from rat tissue.
Three of the six were active: icariin, baohuoside I and a closely related third flavonoid, with IC50 values of 8.275, 5.473 and 3.233 micromolar. An IC50 is the concentration at which a compound halves an enzyme’s activity in the assay. The authors concluded that these flavonoids could be the main active substances of the processed leaf.
From a test tube to a person
A concentration in a dish is not a dose in a person. An IC50 tells you how much of a pure compound, sitting directly on an isolated enzyme, halves its activity. It does not tell you how much plant extract a person would need to swallow, how much would be absorbed, how much would reach the tissue that matters, or how long it would stay there.
That is why this row has nothing to be set against. The other six actives on the JellyBlue panel each have human studies with daily doses, and those doses can be compared with the panel. Horny goat weed’s cited evidence stops before anyone swallows anything, so 100 mg cannot be called high or low. It can only be called unmeasured in people.
It also leaves the icariin content open. The panel names the plant rather than a standardisation, and extracts of the same plant can be made to very different strengths.
| Kind of evidence | What it shows | What it cannot show |
|---|---|---|
| Laboratory assay | A compound blocks an enzyme at a given concentration | Any effect in a person, at any dose |
| Cell study | A change inside cells, here rat smooth muscle cells | Absorption, dose or safety in people |
| Human trial | An effect in people at a stated daily dose | The effect of a different product or dose |
| Supplement panel | The amount in each serving | What that amount does |
For Epimedium sagittatum, the sources cited here reach the first two rows of this table.
JellyBlue: a panel that names every amount
Horny goat weed at 100 mg, tongkat ali at 200 mg and five more named rows, with no proprietary blend, from a named retailer with a lot number on the run.
Two, three or six bottles · free US shipping on three and six · 60 days from the day you pay
Order JellyBlue On The Official WebsiteOne gummy a day · 30 to a bottle · lot JEL-26/GO-5083
What the adverse-effect review found
Herbal sexual enhancers have a safety literature of their own. A 2020 review of psychiatric and neurological adverse effects covered fifteen plants used as aphrodisiacs, and three of them are on the JellyBlue panel: tongkat ali (Eurycoma longifolia), maca (Lepidium meyenii) and ashwagandha (Withania somnifera). Epimedium was not among the fifteen.
The reviewers found most of these plants appeared safe at therapeutic doses, with mild to severe adverse effects possible with overdosing or with self-medication using unstandardised products. Drug interactions worried them more, because herbal aphrodisiacs are often taken with other plant extracts or with medicines, and they noted how little data exist on several of the plants.
Keep to the label’s one gummy a day, avoid stacking several male vitality products, and tell whoever prescribes your medicines what you take. Those three habits answer the review’s three concerns: dose, unstandardised products and interactions.
The adulteration record of this shelf
The PDE5A result matters for a second reason. PDE5 inhibitors are also the drugs most often found hidden in supplements sold for sexual enhancement, and an analysis of FDA warnings from 2007 to 2016 counted them.
| Finding, FDA warnings 2007 to 2016 | Figure |
|---|---|
| Adulterated supplements named | 776, from 146 companies |
| Of those, sold for sexual enhancement | 353, or 45.5% |
| Sexual enhancement products containing sildenafil | 166 of the 353 |
| Products with more than one hidden drug | 157 of the 776 |
| Products named again later with new hidden drugs | 19 of 28 |
From the 2018 analysis in JAMA Network Open of the FDA’s tainted supplements database.
A 2021 worldwide review found the same pattern across countries: supplements labelled herbal or natural adulterated mainly with PDE5 inhibitors, exposing buyers to acute liver injury, kidney failure, pulmonary embolism, stroke and even death. Its advice to clinicians was blunt: treat such supplements as adulterated until proven otherwise.
Where the tainted products came from is telling too. In the last three years of the FDA analysis, 2014 to 2016, 117 of 303 adulterated samples were found through online sampling and 104 through the examination of international mail shipments. A named US retailer, a distributor on the label and a lot on the base are the opposite of that profile.
None of these studies tested JellyBlue. They describe the shelf it sits on, and they explain why the checks below are worth the two minutes they take.
Telling a supplement from a disguised drug
It promises minutes
A supplement that works within the hour is behaving like a drug. On this shelf that promise is the adulteration signal.
It prints no amounts
Names without milligrams cannot be checked against anything. JellyBlue prints seven amounts.
Nobody stands behind it
Look for a named retailer, a distributor on the label and a lot on the base. JellyBlue’s label names Gex Corporation LLP as distributor.
It borrows a drug’s name
Products named after prescription medicines are the ones FDA warnings keep finding.
MedlinePlus’s summary of herbal medicine puts the underlying point plainly: natural does not always mean safe, herbal medicines do not go through the testing that drugs do, and some herbs interact with prescription or over-the-counter medicines. The batch checks and testing page set out what a buyer can verify on a JellyBlue bottle.
Questions about the horny goat weed row
Does horny goat weed work like sildenafil?
In a laboratory assay three of its flavonoids blocked the same enzyme, PDE5A. No human trial cited here tests a dose of the plant, so nothing can be said about an effect in people, and JellyBlue makes no such claim.
How much icariin is in one gummy?
The panel gives 100 mg of horny goat weed extract and no icariin figure, so the icariin content cannot be worked out from the label.
Why is horny goat weed missing from one graphic?
The WHAT IS INSIDE graphic shows five botanicals and leaves it out; the INSIDE JELLYBLUE graphic shows six and includes it. The panel lists all seven actives with their amounts.
Is horny goat weed safe at 100 mg?
The sources cited here include no human safety trial of Epimedium sagittatum at this amount, and the adverse-effect review of herbal sexual enhancers did not cover it. Keep to one gummy a day and tell whoever prescribes your medicines that you take it.
Why is the name misspelt on the panel?
The panel prints Horney goat weed. The Latin name beside it, Epimedium sagittatum, is correct, and this website uses the standard spelling.
What does horny goat weed do in Jelly Blue gummies?
Horny goat weed is one of seven named actives, printed at 100 mg of extract per gummy. The published work behind it is a 2022 laboratory study of flavonoids, which is not a trial on people taking this product.
Is horny goat weed in JellyBlue a standardized amount?
The panel prints 100 mg of horny goat weed extract and names the species, Epimedium sagittatum. The post covers what that label detail can tell you and why an independent assay is not published.
JellyBlue is a dietary supplement, not a treatment for erectile dysfunction or any other condition. Hidden PDE5 inhibitors are dangerous alongside nitrate medicines for chest pain, which is one more reason to buy only from a named seller and keep the lot number. A change in sexual function can have medical causes, heart disease among them, that deserve a clinician’s assessment.
Sources cited in this post
- Li J, Wu Y, Yu X, et al, Isolation, bioassay and 3D-QSAR analysis of 8-isopentenyl flavonoids from Epimedium sagittatum maxim. as PDE5A inhibitors, Chin Med, 2022;17(1):147, (PubMed record 36587222) https://pubmed.ncbi.nlm.nih.gov/36587222/
- Brunetti P, Lo Faro AF, Tini A, et al, Pharmacology of Herbal Sexual Enhancers: A Review of Psychiatric and Neurological Adverse Effects, Pharmaceuticals (Basel), 2020;13(10):309, (PubMed record 33066617) https://pubmed.ncbi.nlm.nih.gov/33066617/
- Yéléhé-Okouma M, Pape E, Humbertjean L, et al, Drug adulteration of sexual enhancement supplements: a worldwide insidious public health threat, Fundam Clin Pharmacol, 2021;35(5):792-807, (PubMed record 33484004) https://pubmed.ncbi.nlm.nih.gov/33484004/
- Tucker J, Fischer T, Upjohn L, et al, Unapproved Pharmaceutical Ingredients Included in Dietary Supplements Associated With US Food and Drug Administration Warnings, JAMA Netw Open, 2018;1(6):e183337, (PubMed record 30646238) https://pubmed.ncbi.nlm.nih.gov/30646238/
- Herbal Medicine, MedlinePlus, U.S. National Library of Medicine, https://medlineplus.gov/herbalmedicine.html
