Can testosterone lotion rub off on your partner? new study investigates
NCT ID NCT02733133
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looks at whether a testosterone lotion applied to men's skin can transfer to women through casual contact. Researchers will measure testosterone levels in the blood of female partners after skin-to-skin contact. The goal is to understand if the lotion is safe for use around others.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Testosterone lotion (Testagen TDS-Testosterone 5% HypoSpray)
- What this could lead to
- If successful, this study could confirm that the lotion is safe to use without risk of transferring testosterone to partners through skin contact.
- What could go wrong
- This is an early phase 2 study with only 96 healthy couples, so results may not apply to real-world use or people with medical conditions. The study is not yet recruiting.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
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