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Two Consecutive Sunscreen Applications Optimize Sun Protection

NCT03033654 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 31

Last updated 2017-01-27

No results posted yet for this study

Summary

The investigators aim to investigate how much two consecutive applications of sunscreen before sun exposure can increase the quantities of sunscreen applied and decrease the skin area left without sunscreen compared to a single application. Volunteers wearing swimwear applied sunscreen in a laboratory environment twice and had pictures taken in black light before and after. As sunscreens absorb black light the darkness of the skin increased with increasing amounts of sunscreen applied. The investigators conducted a standard curve establishing a link between picture darkness and applied sunscreen quantity. Participants were asked to apply sunscreen the way they would normally do but two consecutive times. No other advice was given. The level of protection was determined by picture analysis as measurements of darkness of selected skin sites as well as the percentages of skin area left without sunscreen in different body regions and in total.

Conditions

  • Sun Protection

Interventions

OTHER

Sunscreen, Actinica

Two Consecutive Sunscreen Applications

Sponsors & Collaborators

  • Bispebjerg Hospital

    lead OTHER

Study Design

Allocation
NA
Purpose
PREVENTION
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2015-02-28
Primary Completion
2015-02-28
Completion
2015-02-28

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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 NCT03033654 on ClinicalTrials.gov