Your Skin's Secret Weapon: The Power of Your Microbiome - AI Podcast

Story at-a-glance Your skin microbiome helps protect against UV radiation damage by metabolizing harmful cis-urocanic acid (cis-UCA) using an enzyme called urocanase, preventing immunosuppression and inflammation after sun exposure Urocanase-positive bacteria rapidly respond to UVB exposure, shifting skin microbiome composition within hours and creating a protective feedback loop that supports overall skin health Conventional sunscreens often disrupt beneficial skin bacteria, while certain microbes produce protective compounds like pigments, antioxidants, and enzymes that naturally neutralize harmful UV radiation Linoleic acid (LA) from vegetable oils accumulates in skin cells, making them vulnerable to UV damage. Conversely, C15:0 fat can eventually replace LA in cell membranes Reducing LA intake and supplementing with 2 grams of C15:0 daily can help boost skin health in 12 to 18 months, enabling greater sun resilience without relying on conventional sunscreens

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