Personalized Photoprotection: Sunscreens, Visible Light, and Emerging Sun Protection Strategies

Conclusions

• Effective photoprotection should be presented as a total package that includes shade, clothing, hats, sunglasses, sunscreens, and selected non-topical agents rather than sunscreen alone.
• For protection against visible light and long-wave UVA, tinted sunscreens containing iron oxides are especially useful in the United States, while newer European filters such as Mexoryl 400, TriAsorB, and BDBP show broader wavelength coverage.
• The evidence base for non-filtering photoprotective ingredients is generally weak, with only a small fraction of PINGs supported by strong clinical data.
• Among non-filtering agents, antioxidants, depigmenting compounds, and DNA-repair ingredients such as vitamin C, nicotinamide, thiamidol, photolyase, and related agents appear to be the most promising.
• Personalized photoprotection is warranted because optimal advice depends on skin phototype, skin color, and other individual factors rather than a one-size-fits-all approach.
• Lighter-skinned individuals generally need higher UVB protection because they are more prone to sunburn and skin cancer, whereas darker-skinned individuals may need relatively less SPF but more emphasis on UVA and visible-light protection to prevent pigmentation.
• Visible light clearly contributes to pigment darkening and erythema, but other harmful effects such as photoaging or skin cancer remain insufficiently proven.
• Current evidence suggests that blue light from common personal devices is not intense enough to cause meaningful skin pigment changes.
• Oral and topical adjuncts such as polypodium leucotomos can reduce, but not replace, conventional sun protection.
• The field is moving toward broader sunscreen options and more user-friendly regulation, with FDA expansion of approved active ingredients viewed as an important step forward.