PlainVitamins

Staminol

by GNC Ultra Mega Green · capsule

  • Off the market since February 2021 (NIH)
  • DSLD label 11525
  • Serving 2 capsules

Staminol by GNC Ultra Mega Green lists 10 ingredients, 10 with an amount per serving of 2 capsules, such as 175 mg of kola nut, 150 mg of oat straw, 100 mg of GABA and 100 mg of nettle. Its current label entered the NIH Dietary Supplement Label Database on July 25, 2012.

What is in Staminol?

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).

Staminol: Supplement Facts rows against the market (DSLD label 11525, January 2026 release)
IngredientAmount% DVAmong products listing it
Proprietary Blendas Epimedium extract, L-Arginine, Maca powder200 mg
Kola Nut175 mgCola in Staminol against 39 products175 mg per serving; the middle half of products list 75 mg to 212.5 mg, the median 175 mg.175 mg

44% of 39 products listing cola give more (median 175 mg).

Oat Straw150 mgOats in Staminol against 304 products150 mg per serving; the middle half of products list 50 mg to 500 mg, the median 187.5 mg.150 mg

52% of 304 products listing oats give more (median 187.5 mg).

GABA100 mgGABA in Staminol against 744 products100 mg per serving; the middle half of products list 80 mg to 400 mg, the median 100 mg.100 mg

48% of 744 products listing GABA give more (median 100 mg).

Nettle100 mgStinging Nettle in Staminol against 710 products100 mg per serving; the middle half of products list 50 mg to 300 mg, the median 120 mg.100 mg

51% of 710 products listing stinging nettle give more (median 120 mg).

Yohimbe bark extract60 mgYohimbe in Staminol against 313 products60 mg per serving; the middle half of products list 4 mg to 100 mg, the median 31.3 mg.60 mg

Higher than 66% of 313 products listing yohimbe (median 31.3 mg).

Horny Goat Weed20 mgEpimedium in Staminol against 311 products20 mg per serving; the middle half of products list 95 mg to 550 mg, the median 200 mg.20 mg

94% of 311 products listing epimedium give more (median 200 mg).

Catuaba10 mgCat's Claw in Staminol against 300 products10 mg per serving; the middle half of products list 45 mg to 500 mg, the median 200 mg.10 mg

95% of 300 products listing Cat's claw give more (median 200 mg).

Muira10 mgMuira Puama in Staminol against 193 products10 mg per serving; the middle half of products list 20 mg to 150 mg, the median 50 mg.10 mg

91% of 193 products listing muira puama give more (median 50 mg).

Damiana10 mgDamiana in Staminol against 198 products10 mg per serving; the middle half of products list 50 mg to 450 mg, the median 100 mg.10 mg

91% of 198 products listing damiana give more (median 100 mg).

Saw Palmetto10 mgSaw Palmetto in Staminol against 1,109 products10 mg per serving; the middle half of products list 100 mg to 320 mg, the median 200 mg.10 mg

97% of 1,109 products listing saw palmetto give more (median 200 mg).

Source: NIH ODS Dietary Supplement Label Database, label 11525 (entered July 25, 2012), 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:

  • 94% of the 311 products that print an amount of epimedium list more than its 20 mg of horny goat weed (filed by NIH under epimedium) (median 200 mg).
  • 95% of the 300 products that print an amount of Cat's claw list more than its 10 mg of catuaba (filed by NIH under Cat's claw) (median 200 mg).
  • 91% of the 193 products that print an amount of muira puama list more than its 10 mg of muira puama (median 50 mg).
  • 91% of the 198 products that print an amount of damiana list more than its 10 mg of damiana (median 100 mg).
  • 97% of the 1,109 products that print an amount of saw palmetto list more than its 10 mg of saw palmetto (median 200 mg).

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?

1 product lists the very same ingredients; the nearest amounts come first.

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
DIRECTIONS: As a dietary supplement, take contents of one pack daily with food.
Warnings
WARNING: Consult your physician prior to using this product if you are pregnant, nursing, taking medication, or have a medical condition.
Discontinue use two weeks prior to surgery.
KEEP OUT OF REACH OF CHILDREN.
Allergens and what it does not contain
No Artificial Colors, No Artificial Flavors.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 11525.

What else is on the label?

Other ingredients: Gelatin, Dicalcium Phosphate.

How many labels does Staminol have?

One label is on file, entered on July 25, 2012.

  1. Label 11525 (current) Entered July 25, 2012 · off the market February 11, 2021

DSLD also links this label to: Ultra Mega Green Men's (bundle set), Omega Complex (bundle set).

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

Who makes it?

The label names General Nutrition Corporation (distributor), Pittsburgh, PA. All GNC Ultra Mega Green products.

Where next?