Process Validation in Dermatology: Assessing Methods for UV Exposure (Artificial Source vs. Sunlight) and Efficacy Evaluation of Anti-Tanning Agents

Inclusion criteria

• 06 Healthy adult subjects aged between 18 to 45 years (both inclusive).
• Healthy adult male and non-pregnant|non-lactating females.
• Female of childbearing potential have self-reported negative urine pregnancy test.
• Subjects with Fitzpatrick skin types III to V will be included. Alternatively, subjects with a Skin colorimetric Individual Typology Angle (ITA) value ranging from 20° to 41° at the application site (forearms) to be included to ensure a diverse representation of skin tones.
• Absence of known photosensitivity disorders to maintain the integrity of the study outcomes.
• Subjects must exhibit a willingness to comply with study plan, including follow-up visits and product applications.
• No history of skin cancer to or any adverse skin conditions, and not under any medication(s) likely to interfere with the study results.
• Subjects willing to follow study direction and willing to give written informed consent for the participation.

Exclusion criteria

• Active skin diseases, such as eczema or psoriasis, that could potentially influence skin reactions.
• Use of photosensitizing medications that interfere with UV-induced skin responses.
• Pregnancy or breastfeeding status, as hormonal changes during these periods can affect skin reactions.
• Individuals with a history of severe adverse reactions to skincare or cosmetic products, ensuring participant safety.
• Presence of open wounds, infections, or cuts at the application sites to prevent complications during the study.
• Subjects with a history of significant sunburns in the past three months, minimizing the potential for confounding effects.