Avoid

⛔ Best avoided

Prohormones

Also called: designer steroids

Steroid-like compounds sold as supplements.

Why people take it
Muscle, testosterone.
What the evidence says
Not legal supplements.
How it is usually taken
Not recommended at any amount; see the warning above.
Be careful
Liver damage, hormone problems; banned in sport.
Medicines it can interact with
Dangerous interactions are reported; do not combine with any medicine.

Other avoid

Common questions

What is Prohormones?

Steroid-like compounds sold as supplements.

Why do people take Prohormones?

Muscle, testosterone.

Does Prohormones work?

Not legal supplements.

How much Prohormones do people take?

Not recommended at any amount; see the warning above.

Is Prohormones safe?

Liver damage, hormone problems; banned in sport.

Does Prohormones interact with medicines?

Dangerous interactions are reported; do not combine with any medicine.

Sources and further reading

Last reviewed 31 October 2026. Written by Satya Babu.

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For information only, not medical advice. Supplements are not medicines: they are not tested and approved like drugs before they are sold, and they can interact with medicines. Talk to your doctor or pharmacist before you start one, especially if you are pregnant or breastfeeding, take regular medicines, or have kidney, liver or heart disease.