Clen

by Anabolic Research · capsule · 90 capsules

  • On the market (NIH)
  • DSLD label 171697
  • Serving 1 capsule
  • 90 servings

Clen by Anabolic Research lists 6 ingredients, 1 with an amount per serving of 1 capsule, such as 25 mcg of vitamin B12; 5 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on February 25, 2019.

What is in Clen?

Each row as the label prints it, per serving of 1 capsule. 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).

Clen: Supplement Facts rows against the market (DSLD label 171697, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin B12as CyanocobalaminVitamin B12 (Form: as Cyanocobalamin)25 mcg417%Vitamin B12 in Clen against 14,425 products25 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg25 mcg

54% of 14,425 products listing vitamin B12 give more (median 36 mcg).

Clen Proprietary Blend288.5 mg
Caffeinein the blend, no amount given
Cayenne Pepper powderin the blend, no amount given
Octopamine HClin the blend, no amount given
Guggul oleo-gum-resin extractin the blend, no amount given
Synephrine HClin the blend, no amount given

Source: NIH ODS Dietary Supplement Label Database, label 171697 (entered February 25, 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; 5 ingredients sit inside a blend, so their amounts cannot be compared.

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 Clen'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 else is on the label?

Other ingredients: Rice Flour, Gelatin, Magnesium Stearate.

How many labels does Clen have?

One label is on file, entered on February 25, 2019.

  1. Label 171697 (current) Entered February 25, 2019 · on the market · 90 capsules

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

Who makes it?

The label names Anabolic Research (manufacturer). All Anabolic Research products.

Where next?