Comparing picosecond and nanosecond lasers for tattoo removal

In Vivo Analysis of Tattoo Particles After Picosecond Laser Compared to Nanosecond Laser

Observational Universitätsklinikum Hamburg-Eppendorf · NCT06431464

This study is testing whether picosecond or nanosecond lasers work better for removing unwanted tattoos in healthy patients.

Quick facts

Study typeObservational
Enrollment20 (estimated)
Ages18 Years and up
SexAll
SponsorUniversitätsklinikum Hamburg-Eppendorf Academic / other
Locations1 site (Hamburg)
Trial IDNCT06431464 on ClinicalTrials.gov

What this trial studies

This observational study aims to compare the effectiveness of picosecond and nanosecond laser treatments for unwanted tattoos by analyzing the morphological changes of tattoo particles and surrounding tissue in human skin. Healthy patients planning to undergo laser treatment for their tattoos will be included in the study. The study will utilize a multiphoton tomography system to measure the effects of both laser types on the skin. The findings could provide insights into which laser treatment is more effective for tattoo removal.

Who should consider this trial

Good fit: Ideal candidates for this study are healthy individuals who are planning to have laser treatment for their unwanted tattoos.

Not a fit: Patients who have had prior laser treatment on their tattoos, are pregnant or breastfeeding, or have open wounds in the treatment area may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could help identify the more effective laser treatment for tattoo removal, leading to better outcomes for patients.

How similar studies have performed: While comparative studies on laser treatments exist, this specific analysis of morphological changes using advanced imaging techniques is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

\- healthy patients who plan a laser treatment of their unwanted tattoo/ tattoos at our department

Exclusion Criteria:

* laser pretreatment of their tattoos to be treated
* pregnancy, breast feeding
* open wound on the area to be treated

Where this trial is running

Hamburg

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions TattooPigmentation
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.