Menstrual product showdown: which is best for your vaginal bacteria?

NCT ID NCT06646185

First seen Jan 11, 2026 · Last updated Jun 23, 2026 · Updated 21 times

Summary

This study will have 100 women in Peru, Cameroon, and Switzerland try pads, tampons, and cups for two menstrual cycles each. By analyzing vaginal bacteria samples, researchers hope to learn how different products affect the vaginal microbiome. The goal is to help women make informed choices about menstrual products.

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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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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Centre de Recherche sur les Maladies Emergentes et Re-Emergentes

    RECRUITING

    Yaoundé, Yaoundé, 3, Cameroon

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • Swiss Tropical and Public Health Institute

    RECRUITING

    Allschwil, Allschwil, 4123, Switzerland

    Contact Email: •••••@•••••

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • Universidad Nacional de la Amazonia Peruana

    RECRUITING

    Iquitos, Iquitos, 16007, Peru

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact Phone: •••-•••-•••• Email: •••••@•••••

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

menstrual pads, tampons, and menstrual cups

What this could lead to

If successful, this could help women choose menstrual products that support a healthy vaginal microbiome.

What could go wrong

This is a small, early-stage observational study with no control group. Results may not apply to all women or lead to clear recommendations.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.