JNJ-28330835 Reference

Plain English

What it is

JNJ-28330835 is a SARM, a lab-made drug built to switch on the body's muscle-building hormone signals while trying to leave the prostate mostly alone. A drug company (Johnson & Johnson) created it as an experiment. It is sold only as a research chemical, not as an approved medicine.

What people use it for

In the muscle-building and body-recomposition crowd it occasionally comes up as a way to add lean muscle or help sexual function. Those are just personal stories, not an approved use, and real-world use of this particular compound is rare.

What the science shows

The published research is animal-only. Rat studies suggested it could build muscle while shrinking the prostate less than older drugs. There are no human results, so its effects and safety in people are unknown.

The catch

SARMs are not approved for human use, and the FDA has warned the public that they are sold illegally and often mislabeled in bodybuilding products. Anti-doping authorities ban SARMs in sport at all times (WADA lists them as S1.2 anabolic agents). Even though this compound was only tested in animals, SARMs as a group are tied to real harms like lowered natural testosterone, liver damage, and worse cholesterol that can raise heart risk.

Reference summary

Published evidence is preclinical, including rat work describing prostate-sparing anabolic activity. Human outcome data are absent.

Regulatory and posture

Categories

SARM

Aliases

JNJ28330835, JNJ SARM, Non-steroidal SARM

Evidence posture

preclinical - Animal-only SARM. Lean-mass, sexual-function, or performance speculation is not human-validated. WADA-prohibited; no FDA approval.

Regulatory status

No FDA-approved JNJ-28330835 drug label. FDA consumer warnings against SARMs sold in bodybuilding products apply to the class. WADA prohibits SARMs under category S1.2 anabolic agents at all times.

Content review status

research reference