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.
Disclaimer
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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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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Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••