@theskinbiologylab: ☀️ What does sunlight actually do to your skin? You can’t see UV radiation…. but your skin definitely knows it’s there 👀 UVA can penetrate deeper into the skin, while UVB primarily affects the epidermis (outter most layer of the skin), triggering cellular responses and contributing to DNA and oxidative damage. And your skin has its own defence system too 🧬 Melanin helps absorb and disperse some of that UV energy. But that defence system has limits. That’s why sunscreen isn’t about stopping sunlight from touching your skin, it’s about reducing the amount of damaging UV that reaches it 🧴☀️ Your skin is doing some seriously clever biology every time you step outside 🧬 #theskinbiologylab #skinbiology #healthyskin #uvrays #lookafteryourskin

🧬 The Skin Biology Lab

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Region: GB

Monday 24 August 2026 12:28:42 GMT