Comparison of Sun Protection Factor 30 Persistence Between Inorganic and Organic Sunscreen in Swimmer

Not Applicable

• Conditions: Sunscreen Persistence
• Interventions: Other: Inorganic sunscreen; Other: Organic sunscreen

• Registration Number: NCT04618536
• Lead Sponsor: Shannaz Nadia Yusharyahya

Brief Summary

Prolonged sunlight exposure in swimming athletes can cause various changes in the skin; among them is sunburn. The use of sunscreen can reduce sunburn effectively. However, various types of physical activity that can trigger sweating, friction, washing with water, or sun exposure after sunscreen use can interfere with its effectiveness in the form of a decreased SPF level. The purpose of this study is to determine and compare the persistence of organic and inorganic sun protection factor 30 (SPF 30) sunscreens after 1.5 hours of swimming.

Detailed Description

Not available

Study Timeline

• Study Start: 2020-10-05
• Status Verified: 2020-11
• Study First Submitted: 2020-11-01
• Study First Submitted QC: 2020-11-01
• Study First Posted: 2020-11-06
• Last Update Submitted: 2020-11-21
• Last Update Posted: 2020-11-24
• Primary Completion: 2020-12-05
• Study Completion: 2021-01-31

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 22

Inclusion Criteria

• Female or male swimming athletes aged 18-40 years.
• Practice swimming at least 3 times a week with a duration of 1.5-2 hours per practice in the morning or afternoon.
• Willing to be the subject of research by signing the consent.
• Do not have skin diseases.
• Do not have a history of allergies to sunscreens.

Exclusion Criteria

• Existence of skin lesion in the test area.
• In the treatment of phototherapy.
• Using drugs with photosensitivity side effects.
• History of skin malignancy, history of photosensitivity reactions or history of disease affected by UV rays.
• Exposure to direct sunlight to the test area 24 hours before the study and during the study period.
• Absence of erythema response 24 hours after the radiation test.
• Erythema occurs in the entire test area box 24 hours after the radiation test.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Organic sunscreen	Inorganic sunscreen	-
Inorganic sunscreen	Organic sunscreen	-

Primary Outcome Measures

Name	Time	Method
SPF change after swimming for 1.5 hours	24 hours	SPF of inorganic and organic sunscreen were calculated before and after swimming. The difference between SPF before and after swimming will be calculated and compared between the organic and inorganic group. SPF were calculated using minimal erythemal dose (MED) test. The test itself will be conducted in 2 days. Irradiation will be conducted on the first day and minimal erythemal dose result will be collected 24 hours after the irradiation.

Secondary Outcome Measures

Name	Time	Method
Inorganic sunscreen SPF	24 hours	SPF resulted from in vivo method, conducted before swimming. SPF were calculated using MED test. The test itself will be conducted in 2 days. Irradiation will be conducted on the first day and MED result will be collected 24 hours after the irradiation.
Organic sunscreen SPF	24 hours	SPF resulted from in vivo method, conducted before swimming. SPF were calculated using minimal erythemal dose test. The test itself will be conducted in 2 days. Irradiation will be conducted on the first day and minimal erythemal dose result will be collected 24 hours after the irradiation.

Trial Locations

Locations (1)

Cipto Mangunkusumo Hospital; 🇮🇩 Jakarta, DKI Jakarta, Indonesia