PlainVitamins

The Fever

by GymFlo · capsule · 60 capsules

  • On the market (NIH)
  • UPC 6 80140 99970 1
  • DSLD label 210643
  • Serving 1 capsule (690.53 mg/cap); amounts per 2 capsules
  • 30 servings

The Fever by GymFlo lists 16 ingredients, 16 with an amount per serving of 2 capsules, such as 200 mg of N-phenethyl dimethylamine, 200 mg of phenylethylamine, 150 mg of 2-amino-6-methylheptane and 150 mg of infinergy. Its current label entered the NIH Dietary Supplement Label Database on December 22, 2019.

What is in The Fever?

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).

The Fever: Supplement Facts rows against the market (DSLD label 210643, January 2026 release)
IngredientAmount% DVAmong products listing it
N-Phenethyl Dimethylamine200 mgDimethyl phenethylamine in The Fever against 66 products200 mg per serving; the middle half of products list 150 mg to 250 mg, the median 187.5 mg.200 mg

Higher than 53% of 66 products listing dimethyl phenethylamine (median 187.5 mg). Per day at the most servings: 400 mg.

Phenylethylamine200 mgPhenethylamine in The Fever against 65 products200 mg per serving; the middle half of products list 100 mg to 200 mg, the median 150 mg.200 mg

Higher than 54% of 65 products listing phenethylamine (median 150 mg). Per day at the most servings: 400 mg.

2-Amino-6-Methylheptane150 mg
Infinergy150 mgCaffeine in The Fever against 3,358 products300 mg per serving; the middle half of products list 100 mg to 275 mg, the median 200 mg.300 mg

Higher than 76% of 3,358 products listing caffeine (median 200 mg). Per day at the most servings: 600 mg.

Caffeine Anhydrous150 mg
L-Theanine100 mgTheanine in The Fever against 1,602 products100 mg per serving; the middle half of products list 90 mg to 200 mg, the median 100 mg.100 mg

47% of 1,602 products listing theanine give more (median 100 mg). Per day at the most servings: 200 mg.

Green Tea P.E.as EGCGGreen Tea P.E. (Form: 50% EGCG) Note: 98%50 mgGreen Tea in The Fever against 2,595 products50 mg per serving; the middle half of products list 50 mg to 250 mg, the median 100 mg.50 mg

69% of 2,595 products listing green tea give more (median 100 mg). Per day at the most servings: 100 mg.

Theacrine50 mgTheacrine in The Fever against 237 products50 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.50 mg

48% of 237 products listing theacrine give more (median 50 mg). Per day at the most servings: 100 mg.

Paradoxine Grains of Paradise extract50 mgGrains of Paradise in The Fever against 163 products50 mg per serving; the middle half of products list 20 mg to 50 mg, the median 40 mg.50 mg

Higher than 67% of 163 products listing grains of paradise (median 40 mg). Per day at the most servings: 100 mg.

Lean GBB50 mgGamma butyrobetaine in The Fever against 91 products50 mg per serving; the middle half of products list 20 mg to 40 mg, the median 25 mg.50 mg

Higher than 79% of 91 products listing gamma butyrobetaine (median 25 mg). Per day at the most servings: 100 mg.

Higenamime75 mg
Capsimax Capsicum extract50 mgCapsicum in The Fever against 874 products50 mg per serving; the middle half of products list 25 mg to 100 mg, the median 44.5 mg.50 mg

Higher than 50% of 874 products listing capsicum (median 44.5 mg). Per day at the most servings: 100 mg.

Oliveas OleuropeinOlive (Form: 10% Oleuropein) PlantPart: leaf50 mgOlive in The Fever against 822 products50 mg per serving; the middle half of products list 30 mg to 300 mg, the median 100 mg.50 mg

61% of 822 products listing olive give more (median 100 mg). Per day at the most servings: 100 mg.

Rauwolscine1 mgRauwolscine in The Fever against 86 products1 mg per serving; the middle half of products list 1 mg to 2 mg, the median 1.75 mg.1 mg

66% of 86 products listing rauwolscine give more (median 1.75 mg). Per day at the most servings: 2 mg.

Huperzine AHuperzine A Note: 1%0.03 mgHuperzine in The Fever against 589 products30 mcg per serving; the middle half of products list 50 mcg to 200 mcg, the median 100 mcg.30 mcg

87% of 589 products listing huperzine give more (median 100 mcg). Per day at the most servings: 60 mcg.

T2 3,5-Diiodo-L-Thyronine0.03 mg
Bioperine5 mgBlack Pepper in The Fever against 2,363 products5 mg per serving; the middle half of products list 5 mg to 10 mg, the median 5 mg.5 mg

33% of 2,363 products listing black pepper give more (median 5 mg). Per day at the most servings: 10 mg.

Source: NIH ODS Dietary Supplement Label Database, label 210643 (entered December 22, 2019), 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?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.

The NIH database records 1 to 2 servings 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 The Fever'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
Directions for use: Take one (1) capsule in the morning with food. Another capsule (1) may be taken up to 7-8 hours later. We do not recommend taking this product ant later than 6 hours before preferred bedtime. The Fever should not be used more than four (4) weeks at a time.
Warnings
Warning: Please follow and read all directions. Do not continue use of The Fever after four (4) weeks. Do not consume more than the recommended dose. This product is only to be used by healthy adults 21 years of age or older.
Do not use if pregnant or nursing, or if you are at risk of, or being treated for diabetes, liver problems or high blood pressure. Consult your healthcare professional before using this or any other dietary supplements.
Never exceed more that 2 capsules in a 24 hour window.

Source: label statements in DSLD label 210643.

What else is on the label?

Other ingredients: Microcrystalline Cellulose, Magnesium Stearate, Vegetable Cellulose, Silica.

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

How many labels does The Fever have?

One label is on file, entered on December 22, 2019.

  1. Label 210643 (current) Entered December 22, 2019 · on the market · 60 capsules · UPC 6 80140 99970 1

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

Who makes it?

The label names GymFlo (distributor), Richmond, VA. All GymFlo products.

Where next?