Photoprotection for all: Current gaps and opportunities.

Area of Science:

• Dermatology
• Photobiology
• Cosmetic Science

Background:

• Solar radiation effects vary by skin type, DNA repair capacity, and exposure conditions, necessitating personalized photoprotection.
• Current photoprotection guidelines primarily address UV radiation (UVA, UVB) to prevent sunburn and DNA damage.
• Emerging research indicates visible light also induces oxidative stress and pigmentation, particularly in darker skin tones.

Purpose of the Study:

• To highlight the limitations of current photoprotection strategies.
• To emphasize the need for expanded photoprotection to include visible light.
• To propose novel approaches for visible light protection in all skin types, especially skin of color.

Main Methods:

• Literature review of recent studies on visible light effects on skin.
• Analysis of current photoprotection guidelines and product formulations.
• Identification of potential ingredients and strategies for enhanced photoprotection.

Main Results:

• Visible light generates reactive oxygen and nitrogen species, contributing to skin damage and pigmentation.
• Individuals with darker skin, despite natural UV protection, are susceptible to visible light-induced damage.
• Existing photoprotection often inadequately addresses visible light concerns.

Conclusions:

• Photoprotection must evolve to incorporate protection against visible light, not just UV radiation.
• Individuals with darker skin may require enhanced protection strategies against visible light.
• Future photoprotection formulations should consider ingredients like iron oxide, titanium dioxide, and antioxidants, alongside oral supplementation.