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

Bispebjerg Hospital80 enrolled

Overview

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.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

PREVENTION

Masking

NONE

Enrollment

Conditions

Vitamin D Production in the Skin Sunscreen Persistence

Interventions

sunscreen MATAS sunlotion SPF 8OTHER

UVB lightRADIATION

duration 4 times 1 minute radiation on the trunk.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 65 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Healthy participants. * \> 18 years. * Skin type I, II, and III. Exclusion Criteria: * Pregnancy. * Medicin use. * Skin or other diseases. * The participants must not have been in solarium or gotten sun on their trunks in the 3 months before the study start and during the study. * Skin types IV and above.

Locations (1)

Bispebjerg Hospital

Copenhagen, KBH NV, Denmark

RECRUITING

Outcomes

Primary Outcomes

vitamin D (nmol) meassured in a blood sample.

Time frame: 5 days after sunscreen use and UV light exposure

Central Contacts

Hans Christian Wulf, Dr.med

CONTACT

+45 3135 3155

Ditte Beyer, stud.med

CONTACT

+45 2014 1423 beyer10@tiscali.dk

Data from ClinicalTrials.gov

This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.