articleSkin & Hair
Sun and visible light protection for melanin-rich skin
Melanin offers real but partial protection. Here is what the evidence says about pigment, light, and midlife skin.
- Written by:
- Navelle Editorial Team
- Reviewed by:
- Navelle Clinical Reviewer
- Published:
- August 25, 2026
- Reviewed on:
- August 29, 2026
A persistent myth is that darker skin does not need sun protection. Melanin does provide meaningful natural protection against ultraviolet light, but it is partial, it does not prevent skin cancer, and it does not prevent pigment problems. In fact, visible light, the part of sunlight you can see, plays a larger role in darkening patches on deeper skin than it does on lighter skin.
What this means in practice
- Sun exposure is one of the most consistent triggers for melasma and for darkening old marks
- Protection matters on cloudy days and near windows, because visible light passes through glass
- Shade, hats, and clothing carry no formulation trade-offs and are easy to layer in
- Sunscreen formulations vary widely in how they look on deeper skin, and a product you will actually wear is the one that helps
The harder conversation
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