International modified Delphi consensus statement on visible light photoprotection: Effects, measurement, and...

Area of Science:

• Dermatology and Photobiology
• Cutaneous Medicine
• Visible Light Effects on Skin

Background:

• Solar ultraviolet radiation (UVR) effects on skin are established.
• Visible light (VL) also impacts skin, causing hyperpigmentation, melasma, and photodermatoses.
• Standardized methods for assessing VL photoprotection are lacking.

Purpose of the Study:

• Convene experts in visible light photobiology.
• Define cutaneous effects of visible light.
• Identify populations needing VL photoprotection.
• Determine optimal VL photoprotection strategies.
• Recommend standardized methods for assessing VL effects on skin.

Main Methods:

• Modified Delphi consensus process.
• International expert panel convened.
• Review of current best evidence on VL photobiology.

Main Results:

• 27 consensus statements developed.
• Guidelines for VL photoprotection defined.
• Methodological approach for VL assessment recommended.

Conclusions:

• Consensus statements will guide research, clinical practice, and product development.
• Optimized strategies for visible light photoprotection are now available.
• Standardized assessment methods are crucial for advancing VL photoprotection.