Unveiling the Hidden Dangers: The Impact of Blue Light on Skin Health and Aging

Introduction: Deeper into the skin than UV radiation, blue light (400–490 nm) a component of the visible spectrum induces oxidative stress, DNA damage, and early aging. Its long-term effects on skin health remain understudied given growing exposure from digital devices. The aim of this study: The objective of the review is to investigate how blue light affects skin by means of UV radiation comparison, vulnerability identification, and evaluation of mitigating techniques including sunscreens, antioxidants, and behavioral modification. The materials and methods used: Synthesized were data from in vitro, in vivo, and clinical studies using materials and techniques. Advanced imaging, spectrophotometry, and biopsies under controlled blue light exposure allowed one to quantify cellular and molecular damage including ROS generation and collagen degradation. Conclusion: In essence, blue light fuels oxidative stress, pigment problems, and skin aging. Among the effective mitigating techniques are lifestyle changes, advanced photoprotection, and antioxidant-rich skincare. Future studies will help to solve chronic exposure issues and enhance protective strategies.