Determining the Appropriate Amount of Sunscreen for Thai Facial Skin Using 3D Facial Surface Scanning

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

TCTR

Registry ID

TCTR20251202007

Enrollment

136

Registered

2025-12-02

Start date

2026-02-11

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

The study addresses inadequate photoprotection caused by applying too little sunscreen. Insufficient sunscreen use increases the risk of skin damage, premature aging, dark spots, and skin cancer. The project aims to identify the appropriate amount of sunscreen for Thai facial skin using 3D facial measurements and to assess how much sunscreen people typically use in daily life. Sunscreen, Photoprotection, Ultraviolet radiation, Facial skin, 3D facial scanning

Interventions

Healthy Thai adult males aged 18 years or older with body weight between 51 and 60 kg.,Healthy Thai adult males aged 18 years or older with body weight between 61 and 70 kg.,Healthy Thai adult males a

Prevention,Prevention,Prevention,Prevention,Prevention,Prevention,Prevention,Prevention

Male participants weight 51 to 60 kg,Male participants weight 61 to 70 kg,Male participants weight 71 to 80 kg,Male participants weight 81 to 90 kg,Female participants weight 41 to 50 kg,Female partic

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Healthy adults aged 18 years or older 2. Thai nationality 3. Able to remain still for approximately five minutes during 3D facial scanning

Exclusion criteria

Exclusion criteria: 1. Pregnant individuals 2. Individuals with conditions affecting facial structure such as cleft lip or cleft palate, hemifacial dystrophy, or acromegaly 3. Individuals unable to read or communicate in Thai

Design outcomes

Primary

Measure	Time frame
Appropriate sunscreen amount based on facial surface area Single study visit conducted during participant enrollment mg	—

Secondary

Measure	Time frame
Sunscreen amount used in daily life Single study visit conducted during participant enrollment mg	—

Countries

Thailand

Contacts

Public ContactDepartment of Dermatology Siriraj Hospital

Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University

info.sirirajderm@gmail.com024197000

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026