PlainVitamins

Hydroxycut Black Onyx

by MuscleTech · capsule · 120 capsules

  • On the market (NIH)
  • UPC 6 31656 60941 7
  • DSLD label 255855
  • Serving 2 capsules
  • 60 servings

Hydroxycut Black Onyx by MuscleTech lists 12 ingredients, 12 with an amount per serving of 2 capsules, such as 200 mg of caffeine anhydrous, 200 mg of C. canephora robusta extract, 200 mg of C. canephora robusta extract and 100 mg of coleus extract. Its current label entered the NIH Dietary Supplement Label Database on October 22, 2021.

What is in Hydroxycut Black Onyx?

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).

Hydroxycut Black Onyx: Supplement Facts rows against the market (DSLD label 255855, January 2026 release)
IngredientAmount% DVAmong products listing it
Caffeine Anhydrous200 mgCaffeine in Hydroxycut Black Onyx against 3,358 products200 mg per serving; the middle half of products list 100 mg to 275 mg, the median 200 mg.200 mg

34% of 3,358 products listing caffeine give more (median 200 mg). Per day at the most servings: 400 mg.

C. canephora robusta extractas Chlorogenic Acids200 mgRobusta Coffee in Hydroxycut Black Onyx against 36 products400 mg per serving; the middle half of products list 200 mg to 200 mg, the median 200 mg.400 mg

Higher than 86% of 36 products listing robusta coffee (median 200 mg). Per day at the most servings: 800 mg.

C. canephora robusta extractas Chlorogenic Acids200 mg
Coleus extractas Forskolin100 mgColeus in Hydroxycut Black Onyx against 303 products100 mg per serving; the middle half of products list 73.5 mg to 250 mg, the median 125 mg.100 mg

51% of 303 products listing coleus give more (median 125 mg). Per day at the most servings: 200 mg.

Theacrine35 mgTheacrine in Hydroxycut Black Onyx against 237 products35 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.35 mg

66% of 237 products listing theacrine give more (median 50 mg). Per day at the most servings: 70 mg.

L-Theanine75 mgTheanine in Hydroxycut Black Onyx against 1,602 products75 mg per serving; the middle half of products list 90 mg to 200 mg, the median 100 mg.75 mg

75% of 1,602 products listing theanine give more (median 100 mg). Per day at the most servings: 150 mg.

Cholineas Choline BitartrateCholine (Form: as Choline Bitartrate)50 mg9%*Choline in Hydroxycut Black Onyx against 4,738 products50 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg50 mg

Higher than 54% of 4,738 products listing choline (median 40 mg). Per day at the most servings: 100 mg.

Rosemary50 mgRosemary in Hydroxycut Black Onyx against 332 products50 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.50 mg

46% of 332 products listing rosemary give more (median 50 mg). Per day at the most servings: 100 mg.

flowering Quince50 mg
Grains of Paradise extract20 mgGrains of Paradise in Hydroxycut Black Onyx against 163 products20 mg per serving; the middle half of products list 20 mg to 50 mg, the median 40 mg.20 mg

70% of 163 products listing grains of paradise give more (median 40 mg). Per day at the most servings: 40 mg.

Yohimbe extractas Yohimbine20 mgYohimbe in Hydroxycut Black Onyx against 313 products20 mg per serving; the middle half of products list 4 mg to 100 mg, the median 31.3 mg.20 mg

60% of 313 products listing yohimbe give more (median 31.3 mg). Per day at the most servings: 40 mg.

Satsuma Mandarin concentrateas Beta-Cryptoxanthin2 mg

* % Daily Value computed from the printed amount and the FDA Daily Value (21 CFR 101.9); the label prints none for that row.

Source: NIH ODS Dietary Supplement Label Database, label 255855 (entered October 22, 2021), 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 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 Hydroxycut Black Onyx'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: To assess your tolerance, refer to the chart below. Once your tolerance has been assessed, take 2 capsules twice daily, 30 to 60 minutes before your 2 largest meals (e.g. breakfast and lunch). Do not exceed 4 capsules in a 24-hour period. For best results, use for 60 days in combination with diet and training. Drink 8 to 10 glasses of water per day.
Warnings
Warning: Not intended for use by persons under 18.
Do not use if pregnant or nursing.
Discontinue use and consult a medical doctor if you experience unusual symptoms.
Consult a medical doctor before use if you have been treated for, diagnosed with or have a family history of any medical condition, or if you are using any prescription or over-the counter drug(s).
Consult a medical doctor before starting a diet or exercise program.
Caffeine-sensitive individuals may experience the following symptoms including (but not limited to) restlessness, nervousness, tremors, headache, anxiety, palpitations, increased heart rate or difficulty sleeping. Do not combine with other sources of caffeine or stimulants. Discontinue use 2 weeks prior to surgery. Do not use for more than 8 weeks. Do not use if you have heart, sleep or anxiety disorders. Do not exceed recommended serving. Improper use of this will product will not improve results and is not advised.
Use only as directed.
Keep out of reach of children.
Do not use if packaging has been tampered with.
Storage
Store in a cool, dry place (60 degrees F to 80 degrees F).

Source: label statements in DSLD label 255855.

What else is on the label?

Other ingredients: Capsule, Microcrystalline Cellulose, Magnesium Stearate, Silicon Dioxide.

How many labels does Hydroxycut Black Onyx have?

One label is on file, entered on October 22, 2021.

  1. Label 255855 (current) Entered October 22, 2021 · on the market · 120 capsules · UPC 6 31656 60941 7

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

Who makes it?

The label names Iovate Health Sciences U.S.A. Inc. (distributor), Wilmington, DE. All MuscleTech products.

Where next?