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UV nail lamps under the microscope: could your manicure be harming your skin?

NCT ID NCT07700186

Knowledge-focused Sponsor: University of Split, School of Medicine Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jul 13, 2026 · Last updated Jul 16, 2026 · Updated 3 times

Summary

This observational study compares skin barrier function between healthy adult women who regularly use UV lamps for nail treatments and those who do not. Researchers measure transepidermal water loss, skin hydration, and redness on the hands to see if UV lamp exposure is linked to changes in skin health. Participants attend a single visit, complete a short questionnaire, and undergo non-invasive skin measurements.

What this could mean

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

What this could lead to
If differences are found, this could inform safer nail care practices and highlight potential skin risks from UV lamp exposure.
What could go wrong
This is a small observational study (30 participants) that can only show associations, not cause and effect. Results may not apply to all women.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 30 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Jul 2026

An estimate. Start dates often move.

Expected to finish

Jul 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Healthy adult women recruited from the general population. Participants will be classified into two groups based on their self-reported use of UV nail lamps during nail treatments: regular users of UV nail lamps and women who do not regularly use UV nail lamps and have natural nails.

Ages

18 to 50 years

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Healthy adult women (≥18 years of age) * Willing and able to provide written informed consent * Willing to complete the study questionnaire Exclusion Criteria: * Active skin diseases (e.g., psoriasis, vitiligo, or other dermatological conditions) * Allergic contact dermatitis * Pregnancy or breastfeeding * Use of topical or systemic corticosteroids, immunosuppressive drugs, or antihistamines

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Conditions

The condition(s) this trial relates to.

Erythema

As listed by the trial registrant

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

Effects of uv nail lamps on skin barrier function Healthy volunteers

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • University of Split School of Medicine

    RECRUITING

    Split, 2100, Croatia

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