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Sunscreen: Persistence of Sun Protection Factor and the Influence on Vitamin D

NCT00711256 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 80

Last updated 2008-07-08

No results posted yet for this study

Summary

The investigators want to investigate whether sunscreen is removed by clothing and to what extend when the amount of sunscreen applied varies.Does clothing reduce the SPF when clothes are put on 20, 8, or 4 minutes after sunscreen application? The investigators also want to investigate the persistence of sunscreen during eight hours indoor. How much does the SPF reduces? Furthermore, we want to investigate whether sunscreen in the layers 2, 1, and 0.5 mg/cm2 reduce the vitamin D production in the skin.

Conditions

  • Vitamin D Production in the Skin
  • Sunscreen Persistence

Interventions

OTHER

sunscreen MATAS sunlotion SPF 8

RADIATION

UVB light

duration 4 times 1 minute radiation on the trunk.

Sponsors & Collaborators

  • Bispebjerg Hospital

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Model
FACTORIAL

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2008-07-31
Primary Completion
2008-08-31
Completion
2008-11-30

Countries

  • Denmark

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00711256 on ClinicalTrials.gov