Horny Goat Weed

by Prolab · capsule · 60 capsules

  • Off the market since July 2024 (NIH)
  • UPC 7 50902 10469 5
  • DSLD label 77308
  • Serving 2 capsules
  • 30 servings

Horny Goat Weed by Prolab lists 6 ingredients, 6 with an amount per serving of 2 capsules, such as 80 mg of niacin, 500 mg of horny goat weed, 250 mg of maca 4:1 extract and 250 mg of tribulus terrestris extract. Its current label entered the NIH Dietary Supplement Label Database on December 22, 2017.

What is in Horny Goat Weed?

Each row as the label prints it, per serving of 2 capsules. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Horny Goat Weed: Supplement Facts rows against the market (DSLD label 77308, January 2026 release)
IngredientAmount% DVAmong products listing it
Niacin80 mg400%Niacin in Horny Goat Weed against 12,413 products80 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg80 mg

Higher than 87% of 12,413 products listing niacin (median 20 mg). 2.3 times the adult UL a day.

Horny Goat Weedas Icariin Flavones500 mgEpimedium in Horny Goat Weed against 311 products500 mg per serving; the middle half of products list 95 mg to 550 mg, the median 200 mg.500 mg

Higher than 65% of 311 products listing epimedium (median 200 mg).

Maca 4:1 extract250 mgMaca in Horny Goat Weed against 728 products250 mg per serving; the middle half of products list 118.13 mg to 600 mg, the median 250 mg.250 mg

48% of 728 products listing maca give more (median 250 mg).

Tribulus Terrestris extractas Furostanol SaponinsTribulus Terrestris extract (Form: standardized to 40% Furostanol Saponins) PlantPart: fruit Genus: Tribulus Species: terrestris250 mgTribulus in Horny Goat Weed against 555 products250 mg per serving; the middle half of products list 100 mg to 750 mg, the median 300 mg.250 mg

51% of 555 products listing tribulus give more (median 300 mg).

Ginkgo biloba extractas Flavone Glycosides, Terpene LactonesGinkgo biloba extract (Form: standardized to 24% Flavone Glycosides, 6% Terpene Lactones) PlantPart: leaf Genus: Ginkgo Species: biloba120 mgGinkgo in Horny Goat Weed against 1,339 products120 mg per serving; the middle half of products list 30 mg to 120 mg, the median 60 mg.120 mg

Higher than 65% of 1,339 products listing ginkgo (median 60 mg).

Yohimbe extractas YohimbineYohimbe extract (Form: standardized to 8% Yohimbine) PlantPart: bark Genus: Pausinystalia Species: yohimbe100 mgYohimbe in Horny Goat Weed against 313 products100 mg per serving; the middle half of products list 4 mg to 100 mg, the median 31.3 mg.100 mg

Higher than 74% of 313 products listing yohimbe (median 31.3 mg).

Source: NIH ODS Dietary Supplement Label Database, label 77308 (entered December 22, 2017), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • At 1 serving a day, the most its directions give, the label lists 80 mg of niacin, 2.3 times the adult Tolerable Upper Intake Level.

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

The products whose ingredient lists overlap most with Horny Goat Weed's, rare ingredients counting for more.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
This product is to be used in conjunction with a healthy diet and exercise regimen.
Directions: Take 2 capsules daily with a meal.
Warnings
Warning: Niacin may cause a harmless, temporary flush that lasts for approximately 20 minutes. The "niacin flush" will subside with continued use. Warning: Do not use this product if you have, or have a history of, liver disease, kidney disease, hypotension, heart disease, diabetes, or chronic inflammation of the prostate gland. Do not use this product if you are taking MAO inhibitor. Do not exceed recommended dose. This products is not recommended for long-term use. Discontinue use and consult your healthcare professional if dizziness, tremors, nervousness, heart palpitations, or recurring headache or sleeplessness occur.
Do not use if you are under the age of 18 or are pregnant or lactating.
Keep out of reach of children.
Allergens and what it does not contain
No: Egg, dairy, nuts/treenuts, soy, fish/shellfish.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 77308.

What else is on the label?

Other ingredients: Gelatin, Rice powder, Silica, Magnesium Stearate, Maltodextrin.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Prolab Quality Assurance.

How many labels does Horny Goat Weed have?

One label is on file, entered on December 22, 2017.

  1. Label 77308 (current) Entered December 22, 2017 · off the market July 8, 2024 · 60 capsules · UPC 7 50902 10469 5

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Prolab Nutrition LLC (distributor), Chatsworth, CA. All Prolab products.

Where next?