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Hair · Article

Finasteride and Testosterone: What Actually Happens

Finasteride doesn't lower testosterone. It raises it slightly while lowering DHT. Here's the real biochemistry.

The numbers

On finasteride 1 mg daily: total testosterone often rises by 10–15% because less is being converted to DHT. DHT itself drops by ~60%.

Does this matter for libido?

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Frequently asked questions

Does finasteride lower testosterone?

No. Slightly raises it.

Can I take finasteride on TRT?

Yes. Many men do. TRT for energy, finasteride for hair.

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