Can Selen help with Haut?

Selenium is an essential trace element that acts as an antioxidant via selenoproteins like glutathione peroxidases, potentially protecting the skin from oxidative stress. Some human studies suggest benefits for UV-induced damage, acne, and psoriasis, but effect sizes are small and evidence is heterogeneous. High selenium intake can be toxic (selenosis). Consumer DNA or blood tests can measure selenium status but are not diagnostic. The evidence for specific skin benefits is moderate, not strong. A balanced diet with selenium-rich foods (e.g., Brazil nuts, fish) is recommended; supplementation only if deficiency is confirmed. Be cautious of marketing claims portraying selenium as a 'skin miracle'.