Yes, melanin absorbs sunlight, specifically harmful ultraviolet (UV) radiation.
Melanin serves as the skin's primary defense mechanism against sun damage. When skin is exposed to UV rays, melanocytes (specialized cells) produce melanin. This pigment then absorbs the incoming UV radiation, effectively preventing it from penetrating deeper into the skin and causing damage to DNA and other vital cellular structures. The more melanin present, the darker the skin and the greater the protection against sun damage. While it's a good defense, it's important to note that melanin alone doesn't provide complete sun protection; sunscreen is still necessary.
